Definition Chemistry - Molecule Molarity

Definition Chemistry - Molecule MolarityMolecule molarity is one of the key methods used to define chemical properties. Molecules are masses of atoms that contain chemical properties. Each molecule has four atoms and has a certain number of covalent bonds between the atoms. These bonds are composed of one type of atom, with another type of atom added in place of the bonding between the atoms.Each bond holds one specific bond. If there is a molar excess of one type of atom, then that bond will be broken in order to create a more specific bond. For example, if you wanted to make an alloy of iron and nickel, then you would add two different types of atoms to make a molar system.Molecule molarity also helps you determine the solubility of a compound. Molecule polarity indicates the maximum solubility of a compound in water and the minimum solubility in water.Molecule molarity can be expressed as M/N and is calculated by adding the molecular weight of the compound and the molecular weight of the ion being dissolved. Molecule molarity is one of the primary key properties of chemistry to use when defining chemical properties.Molecular definition is another way to define chemistry. Molecules are defined by their size and the number of atoms in them. The number of atoms in a molecule is equivalent to the number of protons in the atom. Molecules of different sizes can have very different chemical properties.There are many types of molecules, and each has its own characteristic shape and size. Molecules have similar shapes, sizes, and chemical properties, but they are also classified based on size. Different materials will have different sizes of molecules in them, and it will be this difference which gives them their properties.Molecule molarity is one of the most important keys to understanding chemistry, and it is used in many ways to define chemical properties. Chemists will often use this equation to calculate the solubility of a compound, and they will also use it t o determine the concentration of a compound in a solution.

AP US History Decoding the Textbook - TutorNerds

AP US History Decoding the Textbook - TutorNerds Tips From an Irvine AP Tutor: AP US History: Decoding the Textbook Students preparing for their AP US History class in the fall will find a very thick and in-depth textbook at their desk. Although US History only covers events from the period leading up to the Revolutionary War to current, the course is much more intricate than AP World History or AP European History courses. Students will learn about pivotal battles, important dates, and social change throughout the history of the United States. Reading through the text book can seem overwhelming at first, however, if students know how to utilize the study different elements within the book they will have an easier time during the summer and throughout the year. When broken into smaller parts, AP US History can be very manageable, and students will have a better chance at success if they can decode their textbook before the first day of class. 1. The glossary One of the first things students should look at is the glossary at the back of their text book. Students using an online version of their textbook will find it at the bottom of their chapter list. The glossary is a list of all important or unfamiliar terms used throughout the text. If students know how to use the glossary, they will save tons of time because they wont have to search through endless pages looking for a vocab word from the previous week. Additionally, students should be aware that each and every word found within a glossary has been highlighted as important for a reason. These words often appear on quizzes and exams and are used in class discussion (READ: Last Minute AP Study Guide). 2. Timelines throughout the book Most US History textbooks have timelines that appear throughout the book. This is an important element of learning and an opportunity for students to learn about cause and effect as well as historical consequences. For instance, perhaps a small conflict leads to a much larger battle or war; maybe changes in politics lead to economic change. Its essential for students to be able to learn what happened first, second, and third and understand the importance of linear elements in general. Whenever a student comes across a timeline in their book, they should make note of it and record the page so they can refer to it easily in the weeks to come. 3. Chapter introductions Nearly every student will pass over the chapter introduction; however they can be extremely useful. The chapter introduction will let students know what the chapter covers, as well as what it does not, and covers some learning objectives. If students take a couple of minutes to look at their chapter introduction before reading, they’ll know exactly what is going to be introduced, and this will give them a lot of clues about what will be covered in class as well as in at-home assignments. Upon completing the chapter, students are encouraged to look back at the learning objectives and see if they meet some or all of them. If they dont, they should consult their teacher or a tutor (READ: 5 Reasons to Get an In-Home Tutor this Summer). 4. Key players There are several key players who appeared throughout US history. Whether a President, General, or a social activist there are several figures students simply need to know about. It can be overwhelming to learn about these important historical figures while also trying to learn about dates, foreign affairs, and economic development. If students sit down over the summer and learn about these important people, they will have an easier time once school starts in the fall. 5. Cause and effect Learning how to decipher cause and effect is one of the most important skills AP US History students can develop. One thing happens because another thing happened first and people react to their environment. If students are not yet familiar with the complex issues found in cause and effect they should make this their primary focus for the remainder of their summer study. US History students should always be asking themselves “why” and “who.” Why did this person react in this way? Why didnt they do something else? Who influenced change and who advocated for things to stay the same? If students can understand cause and effect as a concept, they are much more likely to be successful in their course overall. Score high on your AP US History test with the help of an Irvine AP tutor from TutorNerds. Call us today for more information. All blog entries, with the exception of guest bloggers, are written by Tutor Nerds. Are you an education professional? If so, email us at pr@tutornerds.com for guest blogging and collaborations. We want to make this the best free education resource in SoCal, so feel free to suggest what you would like to see us write.

Effective Approach for tutoring math by Erwin Salinas

Effective Approach for tutoring math by Erwin Salinas Mathematics uses building blocks, meaning it requires mastery of the fundamentals before moving on to advanced concepts thus requiring a certain approach different from History or English. My approach is designed to accommodate different types of learners. I call it the 'concept-details-confirm' approach.Here are two examples of how I used 'concept-details-confirm' approach when tutoring Mathematics in Elementary Math and Calculus I, respectively:Tutoring Elementary Math:One of the most challenging concepts in Elementary math is multiplication. To do multiplication, the student should have mastered addition first. The approach I am going to take when a student is having trouble with multiplication is make them understand the concept first, then show them step-by-step how to multiply. 1.) CONCEPTUnderstanding the concept is important, a student can learn how to multiply using certain techniques, but if they do not know why they are doing it then they will eventually forget after the t est.To make students understand the concept, I will use objects like marbles as visual representation. For example, to represent 3x5 with marbles, I would have 3 SETS OF 5 MARBLES, and I would make the student count it. The total number of marbles from all sets is the answer, which is 15. Then I would have the student represent 4x6 in marbles to get the total number. Once the student understand this concept, he/she can move on to memorizing the multiplication table.2.) DETAILSAfter memorizing the multiplication table, I would now show the student step-by-step how to do one-step multiplication and two-steps or more multiplication. Two-steps multiplication requires mastery of addition.3.) CONFIRMAs I give the student math problems, I would oversee how they do the problems step-by-step, if the student is prone to making mistake in the addition part of two-steps multiplication, then that means the student has not mastered addition, and I would go back and make sure the student masters a ddition using the 'concept-details-confirm' approach. Once the student mastered addition, I would have them correct the mistake they made in two-steps equation. With practice, the student will master two-steps multiplication.Tutoring Calculus I:One of the most challenging concepts in Calculus I is Derivatives. There are many different derivative techniques such as Limit Definition, Product Rule, Quotient Rule, Chain Rule, Impartial differentiation. etc. Before a student can learn these derivative techniques, it is imperative that they have mastered Algebra I, Algebra II, Geometry, and Pre-Calculus, and understand the derivative concept first. Otherwise, if they do not have the prerequisites math mastered, they will be prone to making small mistakes even if they understand the concept really well. If they do not understand the concept, even if they execute the derivative techniques well, they will most likely forget the material after the exam, which will be detrimental when they tak e Calculus II and higher level math.1.) CONCEPTTo make students understand the derivative concept, I will use concrete world examples. I would use a story and a visual, these would ensure to accommodate all types of learners.To represent the concept of derivative in a story, I would use a car going from home to school. As the driver steps on the gas to go to school, the vehicle accelerates, the rate of which the car velocity is increasing is the derivative. When the driver is reaching a red light, the driver will step on the break decelerating the car, the rate of which the car velocity decreases to stop is also the derivative.To represent the concept of derivative in a visual, I would use two graphs of of the car acceleration, and the car speed. In the acceleration graph, I would have x-coordinate as time and y-coordinate as acceleration. In the velocity graph, I would have x-coordinate as time and y-coordinate as speed. The two graphs is a representation of one car. If the car is accelerating in a constant acceleration say 3 m/s^2, then the velocity of the car is increasing by 3 EACH SECOND.So in this case, the layman's definition of derivative is the rate of how fast and slow is something changing.2.) DETAILSOnce the concept is understood, I would teach the mathematical definition of derivative and theorem of the particular derivative technique they need help, and show step-by-step how to do problems using the particular derivative technique.3.) CONFIRMCalculus problems are not easy to make up, so I would assign 3 total problems from their book (if they have one) and my Calculus I book which I still have, and oversee how they are solving the problems step-by-step. If they got the incorrect answer, I would oversee and analyze their steps. There are two possible causes of wrong answer in Calculus I: Not following the calculus steps properly and/or algebra mistake. If it calculus steps, I would have them correct the steps they got wrong. If it's algebra mistak e, I would analyze what part of algebra they are prone to making mistakes and review that concept of algebra with them using 'concept-details-confirm' approach. Once the student mastered that algebra concept, I would have them correct that algebra mistake they made for their assigned Calculus I problems.Conclusion:Whether it's Elementary Math or Calculus I, Ultimately, I would make sure my clients are one-step ahead of their math class by teaching the future materials in their classes using this approach before my clients learns the material in their classes.

Why we need stronger Sciences

Why we need stronger Sciences To put it bluntly, Britain needs a strong high tech sector, and needs it fast. We're a nation with a dangerously nebulous economic foundation. Gone are the days of Big Industry in this country, of coal mines and steel foundries. Our GDP is now built on the sand of the City - so fickle and shifting - and the Consumer Culture we're all part of. Across the pond, the story is different. The US dominates the world's tech market, closely followed by Japan and Korea. Its pharma sector (not the most ethical of industries, true) is a behemoth of world medicine production. It has the strongest genetics research (and the money to fund it), and its entrepreneurs are taking privatized space exploration and mining as a serious proposition. Britain does have its tech stars - Dyson, and the weapons manufacturers BAE Systems - but they are few and far between. While we had something of a digital Renaissance in the 70s and 80s, our latest computational forays have been quieter (an exception being made for the Raspberry Pi, which is important in a very different way). But, as a country, we have a wonderful technological and scientific tradition - perhaps the strongest in the world: Charles Darwin, Crick and Watson, Alan Turing, Alexander Fleming, them and more. As a country we were responsible for a breathtaking array of breakthroughs. Yet, while interest in hard sciences and Maths has risen slightly over the past few years (at A level), it's a long way from becoming the strong sector we need it to be. The answer, as with many world issues, lies in education. We need to enliven our kids to the spirit of science, get them captivated by it, and most importantly, invest in it as a subject and in them as individuals. Good progress has been made by Brian Cox and co., but the education system is still lacking the drive, structure and funds to follow that motivation through. Education is the ultimate investment. A strong science and tech industry starts with strong science and Maths education. If we want to reclaim our position at the forefront of discovery, build a firm economic foundation and jostle with the US, India and China in the Final Frontier, we're going to have to invest in scientific education. In short, if we're going to keep our position as a world player, we're going to need more than just a nation of fund managers, business analysts and credit controllers. Check out our Article on the Top 5 Home Science experiments to spark your kids' imagination!

Socially Inept Networking

Socially Inept Networking Some time ago my boss wanted me to get involved in Social-Networking sites. He said this is where the marketing of the present and the future is taking place. I prefer the telephone myself. Oh oh, one more time where I have to enter a world I’m not familiar with. School was the other world I was not familiar with. I do know how to use a computer to do many things, but putting my life up on an internet billboard is not one I was ever moved to do. Does this mean I’m going to have to join MyFace or SpaceBook? Hey, who I am, what I like, and where I’m going is none of your business. Or is it? People seem to want to tell everyone else what they like these days. I understand that young people spend more time online than off it. In fact more and more people seem to have more friends they’ve never met than ones they have, including me now! I wonder… When people get addicted to the internet, do the support groups hold online meetings? Being an older person I thought I should do my homework first (Wikipedia). There are well over 300 sites listed as “notable” social networking sites. Those are the popular ones. On the other hand only 14 sites are listed as defunct. Those are awfully good odds. Sounds like a good business to be in. According to eBizMBA as of February the top Social-Networking sites are Facebook with over ¾ million users, number two is Twitter at over ¼ million, and in third place is LinkedIn counting over 100,000 members. Interestingly Pinterest has moved up a couple places to the fourth most popular site just behind Linkedin. What I find interesting about that is Pinterest is mostly a site of images or at least appears that way to me. One site I really enjoy is Pearltree. In Peartree you place any kind of information you want, logs, blogs, or images, you name it, everything gets placed in little pearls that when created remind me of a binary tree in computer science or nodes in graph theory in higher mathematics. And in Perltrees people can join together and create their own community of stuff. Anyway, if you haven’t figured it out yet, I know nothing about Social Networking. But hey, I’m learning! Now mind your own business. Oh wait a minute…… did I just post this on MyFace?

Cosmetic Chemistry Degree: What You Need To Know

Cosmetic Chemistry Degree: What You Need To KnowBecoming a cosmetic chemist has always been an important career choice for individuals who want to work in the field of cosmetic science. That is because this field deals with the process of making cosmetic products, cosmetics, and others. If you are considering getting a career in this field, the following is what you need to know.While there are numerous career choices when it comes to your cosmetic chemistry degree, you can also pursue other professional degrees. In fact, a degree in cosmetics is a more popular choice among college students. You can also choose a career that is related to cosmetic and/or healthcare. Some employers may offer a financial aid program to individuals that are willing to go into healthcare related careers.Cosmetic companies are those which make cosmetics and supplies for different industries. These businesses make their products from many ingredients. So when an individual enters this profession, he or she must be adept in the area of cosmetic chemistry. That is because the jobs in this field need knowledge of the composition of different cosmetic products, as well as the chemical reactions that take place.You can also look into nursing as a means of getting a cosmetic chemistry degree. This career option will allow you to work in hospitals and medical facilities where you will learn to mix solutions of different components for cosmetic purposes. You can also go into the beauty care industry. In this field, you will be responsible for determining the composition of different ingredients for cosmetic products.Of course, the career of a cosmetic chemist is not for everyone. It requires a lot of practical experience and knowledge. If you are still in high school, you can still pursue a certificate program. This is because most college courses offer a certificate program as an alternative to a bachelor's degree.Another option is to focus on your technical skills. You will be working on a variety of processes and formulas that involve the use of chemicals and process automation. However, you will still have to follow laboratory safety procedures and adhere to manufacturing regulations. You can even become a consultant for companies that deal with cosmetics.As you can see, a cosmetic chemistry degree is a very important step in the field of this industry. So if you think you are prepared for a career in this field, consider getting a degree from an accredited institution that has a strong reputation.

Organizational Chemistry Tutors - Want to Learn How to Use Microsoft Excel?

Organizational Chemistry Tutors - Want to Learn How to Use Microsoft Excel?The right Microsoft Excel Organizational Chemistry tutor will help you turn your Excel knowledge into a real professional career. Your future job as an organizational chemist is made even more exciting by the knowledge of new discoveries and new chemistry techniques. Your future employer will appreciate that you have gotten a good education.Chemistry educators need to know how to effectively and competently demonstrate and explain the chemical properties of a substance and how they can be used in the analysis of a problem. The ability to identify the problem from a particular compound is an important trait. Unfortunately, many educators simply rely on their old textbooks to teach Chemistry. The new and advanced features of Excel allow educators to give their students hands-on experience with these powerful tools and learn how to use them.An online chemistry course will help you understand and use Excel feature s to help you create, explore, summarize, and compare a variety of different compounds. Before you begin to learn, you need to find an organization or a professional who can help you with this project.A Microsoft Excel Organizational Chemistry Tutor can make your day. They will quickly show you how to handle complex Excel reports and templates and help you keep track of your data so you can always see the most current information you have.A tutor will help you put together a structure and procedure to prevent you from having to make changes to many different cells and tables that are open at once, while excluding Outlook tabs. Plus, the right Excel Organizational Chemistry Tutor will assist you in understanding why your work is taking so long to get done.As you work through your organization chemistry tutor, he or she will discuss the three most important factors that will help you succeed in the field. The right Organizational Chemistry Toolkit will help you learn how to follow the correct procedures and prepare the reports for your presentations.You will learn how to analyze a compound and how to present it to your students and colleagues. You will also learn how to make comparisons and find the exact sample of a compound in the context of all known compounds. You will learn how to present this information in an organized and understandable fashion that will show your students why your organization is successful.