A chemical formula based on analysis of molecular weight.
What is the molecular formula?
200
What is standard temperature?
0 Celcius, 273K
200
What is the molar mass of C6H12O6?
180g/mol
200
How many moles in 35L of Neon gas at STP?
1.56 mol
200
How many zeros are in Avogadro's number?
22
300
CH2O is the empirical formula of a compound that weighs 180g/mol. What is the molecular formula?
C6H12O6
300
In atm, what is standard pressure?
1 atm
300
How many grams in 10 mol of MgCl2?
104g
300
You have 10 moles of chlorine gas. What is the volume of this gas?
224L
300
How many molecules in 10mol of NaCl?
6.02X10^24
400
CH2 is the empirical formula of a compound. If it weighs 28g/mol, what is the molecular formula?
C2H4
400
How much space does one mole of gas occupy at STP?
22.4L
400
How many moles in 2g of NaCl?
.034mol
400
62L of nitrogen gas is how many moles?
2.77mol
400
How many moles in 5X10^22 molecules of HCl?
0.083 mol
500
An unknown compound is found to contain 40.0% carbon, 6.7% hydrogen and 53.3% oxygen with a molecular mass of 60.0 g/mol. What is the molecular formula of the unknown compound?
C2H4O2
500
What volume does 2.5mol of hydrogen gas occupy at STP?
56L
500
How many moles in 6X10^10g of H2O?
3.33 X 10^9 moles
500
You have 10g of hydrogen gas. How many liters is this?