Gauca-mole!
A counting unit that measures the number of representative particles in a sample.
What is the mole?
Chemists know that this is what STP stands for.
Avogadro's number is equivalent to this value.
What is 6.02 x 1023?
This is the formula for determining percent composition by mass.
What is (mass of part/mass of whole) x 100?
This is the smallest whole number ratio of atoms in a compound.
What is an empirical formula?
The mass of a formula expressed in grams.
What is molar mass or gram-formula mass?
Any gases with the same Pressure, Temperature and Volume will have the same number of particles said this.
This many atoms are found in 4.4 moles of silver.
What is 2.65 x 1024 atoms of Ag?
This is the percent composition by mass of hydrogen in water.
What is 11.1% H?
This is the empirical formula of N4O10.
What is N2O5?
This is the molar mass for H2S(g)
What is 34 g/mol?
At STP, one mole of any gas occupies this volume.
What is 22.4 L?
This many molecules are in 5.8 moles of MgO.
What is 3.5 x 1024 molecules of MgO?
This is the percent composition of nitrogen in (NH4)2S.
What is 41.2% N?
This is the empirical formula of C6H8.
What is C3H4?
This is the number of grams in 0.25 moles of calcium chloride
What is 28 grams?
0.90 moles of ammonia gas will occupy this volume at STP.
What is 20. L?
This is the number of formula units in 2.8 mols of (NH4)2S (s).
What is 1.7 x 1024 formula units?
This results when a hydrate is fully heated.
What is a anhydrous salt forming?
This is the molecular formula of a compound if its empirical formula is C2OH4 and it has a molar mass of 88 g/mol.
What is C4O2H8?
This is the number of moles in 7.5 grams of Ca(OH)2
What is 0.10 moles?
2.500 liters of methane (CH4) are equal to this number of moles.
What is 0.1116 moles?
5.6 x 1023 particles of H2SO4 is equivalent to this many moles.
What is 0.93 moles of H2SO4?
This is the percent water in the hydrated salt NiSO4 * 7H2O.
What is 44.91%?
This is the molecular formula for a compound that has an empirical formula of C4H8N2O and a mass of 200 g/mol.
What is C8H16N4O2?