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What three conversion factors are oftem used in mole conversion?
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What is the mole ratio of potassium chloride?
1:1, one mole potassium to one mole chlorine
What number represents the word mole?
No number since mole is an animal.
What is meant by the Avogadro number and why is it relevant to the mole?
Avogadro's number is the number of atoms or molecules of a substance that are present in one mole of that substance. It is relevant to the mole by its very definition!
Why mole fraction does not dependend upon temperature?
because mole fraction doesnot depend on volume
How many in a mole?
6.02x1023
What in chemical equations provide mole ratios that can be used as conversion factors?
Coefficients
The coefficients from a balanced equation are used to write conversion factors called?
mole ratios
What are the two equivalent conversion factors for the molar mass of silver?
1 mole/ 107.87 1 liter/ 4.815 g
What are used as conversion factors for determining how much of an element is produced in a chemical reaction?
mole ratio of two substances in the balanced equation.
A conversion factor derived from the coefficients of a balanced chemical equation interpreted in terms of mole?
Mole Ratio :)
What is the mole conversion of 254g PbCl4?
d. 0.728 mol
What is a tremole?
tremole is a type of "three mole" if you will, which is pronounsed tres mole. So obviously tremole is three moles.
What is the mass in grams of 4.73 moles of CO2?
Well considering the average atomic mass of 1 mole of C = 12.01115g and the average atomic mass of 1 mole of O = 15.9994g you add 2*15.9994 and 12.01115 to get a mole to mass conversion of 44.00995g per mole of CO2. You then 4.73 moles apply it to the conversion. 4.73 moles * 44.00995g/mole = 208.1670635g, rounded for three significant figures to 208. g. The answer: 208g of CO2.
How many atmospheres in one mole?
The question has no possible answer. A mole is a quantity of matter. "Atmosphere" has dimensions of force per unit area. There is no conversion between the two. It is like asking "how many kilograms in one yellow?"
What is a chemical mole?
In Chemistry, we measure things in u(unified mass), but this is really really really small. It is not a practical way to talk about things. (I mean, do you know what 3 u's looks like, cuz i don't) A man named Avogadro came up with a better system. He discovered how many atoms it takes to convert u's to grams. This way you can work with larger amounts than only a few atoms. It turns out that exactly 6.022 x 10 ^23 atoms will convert u's to grams. So, let's first understand u's. These values are unique for each atom, molecule, compound etc.... For atoms, the magnitude (value) can be found on the Periodic Table. For example Cl is 35.45 u. In context(questions): 1. How many ATOMS are in one mole of Chlorine? This is tricky only because there is extra information. A mole of any substance has the same number of atoms (6.022 x 10 ^23), because it is the conversion. The number of atoms in a mole doesn't ever change. 2. How many GRAMS ar in 2 moles of Chlorine? 70.90 grams. One mole contains 35.45, so two moles is twice that number, 70.90. 3. How many moles are in 90.0 grams of Cl? approx. 2.54 moles. This is backwards from the last question. Take the 90.0 grams and divide it by the number of grams in one mole (35.45). My suggestion to you is that you should use conversion factors. If you can successfully do this you won't even have to understand why you are doing what you are doing. (Note: make sure you understand conversion factors first. The units must cancel. Any con. factor can be flipped) Some useful conversion factors: 1 mole/ 6.022 x 10 ^23 atoms #(off of periodic table)/ 1 mole #in U's = # in grams so #in u /# grams ECT.. Good Luck. This is a tough topic for a lot of Chemistry students.
How many moles are present in 0.12g of helium?
1 mole He is 4.0 g. Use as a conversion factor to change 0.12 g He to moles.
How is the number of moles of an element determine from a known mass?
The mass of 1 mole of the element is used as a conversion factor to convert grams to moles
