Apr 7, 2016 · Yes, it has no positive factors apart from 1 and 101. To test if 101 is prime, check for divisibility by each of the primes 2, 3, 5 and 7. There is no need to check beyond these as 11^2 = 121 > 101. So if 101 was divisible by some number less than 101 then it would be divisible by a number less than 11. 101 is not divisible by 2 since it ends with an odd digit. 101 is not …

Dec 25, 2013 · The equation for the Ideal Gas Law is: PV = nRT On the whole, this is an easy equation to remember and use. The problems lie almost entirely in the units. SI units Pressure, P Pressure is measured in pascals ("Pa") — sometimes expressed as newtons per square metre ("N·m"^"-2"). These mean exactly the same thing. Be careful if you are given pressures in …

Stoichiometry is the chemistry that mathematically relates all substances in a reaction, quantitatively relating the amount of reactants and products in a chemical reaction. It allows the chemist to determine the amount of product that will form from a given amount of reactants, or the amount of one reactant that is needed to react completely with some specific amount of the …

Mar 7, 2014 · Once you have identified the limiting reactant, you calculate how much of the other reactant it must have reacted with and subtract from the original amount. > A Sandwich-Making Analogy This video from Noel Pauller uses the analogy of making sandwiches. The general problem Given the chemical equation and the masses of reactants, determine the mass of …

Jun 8, 2016 · More than one patient = patients One patient has something = patient's Many patients have something = patients' Examples: I have several patients to see today. This pateint's chart is incorrect. After that 5-car accident, the patients' families were here immediately.

Jan 3, 2014 · The easiest way is to remember that in order to use stoichiometry, you need to know the moles of the two substances concerned. > We can use the gas laws to help us to determine the effect of temperature, pressure, and volume on the number of moles of a gas. The central requirement of any stoichiometry problem is to convert moles of "A" to moles of "B". If …

Watch the best videos and ask and answer questions in 148 topics and 19 chapters in Calculus. Get smarter in Calculus on Socratic.

Apr 25, 2015 · If you know the frequency of the photon, you can calculate the wavelength using the equation lambda=c/nu where c is the speed of light and nu is the frequency. Example: for a photon of frequency 6times10^(12) s^(-1) the wavelength is lambda=(3times10^8 m/s)/(6times10^(12) s^(-1))=5times10^(-5) m=50 micrometers

Mar 28, 2018 · The number of zeros in 100! will be 24. I understand number of zeros means number of zeros at the end of 100! i.e. trailing zeros. If you dot know, 100! =100xx99xx98xx… xx2xx1 How are the trailing zeros are formed. A trailing zero will be formed when a multiple of 5 is multiplied with a multiple of 2. How many do we have in this long product? First we should …

Feb 16, 2017 · Count the numbers to get the count. Divide the sum by the count to get the arithmetic mean. 4+7+8+12+13+16+20+21 = 101 -> the sum. There are 8 numbers, so 101 / 8 = 12.625 The arithmetic mean is 12.625. For the median, take the list of numbers in numeric order and count them i.e. 8. Look for the middle number in the list.