What is the molar mass of NaCl?
58 g/mol
How many moles are in 16 g of Oxygen?
1 mole Oxygen
Avogadro's number
What are the numbers out front of the H2 and H2O?
2H2 + O2 -->2H2O
Coefficients
What is the molar mass of CO2?
How many moles are in 88 g of CO2?
2 moles
How many atoms are in 1 mole of C6H12O6?
6x1023 atoms
The following equation is balanced, true or false?
__ CaCO3 → __ CaO + __ CO2
True
What is the molar mass of Ca3P2?
182 g/mole
How many moles are in 73.3 g of CH4?
4.6 moles CH4
How many particles are in 7 moles of NH3?
4.2x1024 particles NH3
The following equation is balanced, true or false?
CH4 + 3O2 → CO2 + 2H2O
False
What is the molar mass of C6H12O6?
180 g/mol
how many moles are in 0.25 g of NH3
0.015 moles NH3
How many molecules are in 4.3 moles of Ca3(PO4)2?
2.6x1024 molecules
What are the coefficients of the balanced version of the following chemical reaction?
__ KNO3 → __ KNO2 + __ O2
2,2,1
Which of the following has more atoms, 32 g of O2 or 32 g of N2?
32 g of N2
What is the molar mass Al2(SO4)3
342 g/mol
Which has more moles, 16 g of O2 or 16 g of N2?
16 g of N2
Which has more molecules, 16 moles of O2 or 16 moles of N2?
They are the same
What are the correct coefficients when the following equation is properly balanced?
__Ba(NO3)2 + __Na3PO4 → __Ba3(PO4)2 + __NaNO3
3,2,1,6
1.2x1023 atoms