BalancedEqu.
Vocab
Calculating Formula Mass
Questions
Molar Volume as a Conversion Factor
100
balance this equation C5H12 + O2 ---> CO2 + H2O
C5H12 + 8O2 ---> 5CO2 + 6H2O
100
Stoichiometry
What vocab word does this definition go to? The study of quantitive realtionships between reactants and products in a chemical reaction
100
Find the molecular mass for HCL
36.46
100
Yes, you divide by the #of grams by the atomic mass of the element and muiltiply by avogradro's number
Can mass in grams be converted directly to number to particles ? Describe
100
How many moles are present in 45.0 liters of HCL gas at STP?
2.01 moles
200
Balance this equation Zn + HCl ---> ZnCl2 + H2
Zn + 2HCl ---> ZnCl2 + H2
200
Molar Mass
The mass of one mole of a pure substance is what vocab word ?
200
Find the molecular mass for PbSO4
303.281
200
Mass- amount of material Moles- amount of matieral, but they are normalized to the atomic mass of the material
Describe the relationship between mass and moles
200
What volume does 2.8 moles of CO2 occupy at STP?
62.7 liters
300
Balance this equation Ca(OH)2 + H3PO4 ---> Ca3(PO4)2 + H2O
3Ca(OH)2 + 2H3PO4 ---> Ca3(PO4)2 + 6H2O
300
Avogrado's #
6.02 × 10^23
300
Find the molecular mass for MgCO3
84.313
300
How many moles of O2 are needed to completely react with 5.0 moles of C2H6?
17.5 moles
300
How many moles are contained in 0.50 liter of NO2 gas at STP?
0.2 Moles
400
Balance this equation FeCl3 + NH4OH ---> Fe(OH)3 + NH4Cl
FeCl3 + 3NH4OH ---> Fe(OH)3 + 3NH4Cl
400
Volume that a mole of gas occupies at a pressure of one atmosphere and a temperature of 0.00c
What is molar volume ?
400
Find the molecular mass for I2
253.8
400
How many moles of carbon dioxide (CO2) are formed when 40 moles of oxygen (O2) is consumed ?
20 mol CO2
400
How many grams are tgere ub a 2.0 liters flask of CH4 gas at STP?
1.4 Grams
500
balance this equation C2H6 + O2 ---> CO2 + H2O
2C2H6 + 7O2 ---> 4CO2 + 6H2O
500
The unit used to count numbers of atoms, molecules, of formula units of substance
What is a Mole?
500
Find the molecular mass for KOH
56
500
How many moles of methane (CH4) are needed to form 200 moles of water?
100 mol CH4
500
What is the mass of 100.0 mL of ethane has (C2H6) at STP?
0134 grams
M
e
n
u