The molar mass of CO_{2} is 44 g/mol. What is the mass of 2 moles of CO_{2}?

88 g

The molar mass of CO_{2} is 44 g/mol. What is the mass of 0.5 moles of CO_{2}?

22 g

The molar mass of CO_{2} is 44 g/mol. What is the mass of 1 mole of CO_{2}?

44 g

The molar mass of CO_{2} is 44 g/mol. How many moles are in 11 g of CO_{2}?

0.25 mole

The molar mass of CO_{2} is 44 g/mol. How many moles are in 66g of CO_{2}?

1.5 mole

The molar mass of CO_{2} is 44 g/mol. How many moles are in 44g of CO_{2}?

1.0 mole

Avogadro's number is 6.0 x 10^{23} particles/mol. How many moles of F_{2} molecules can be found in 2.0 moles of F_{2}?

1.2 x 10^{24} molecules

Avogadro's number is 6.0 x 10^{23} particles/mol. How many moles of F_{2} molecules can be found in 1.0 moles of F_{2}?

6.0 x 10^{23} molecules

Avogadro's number is 6.0 x 10^{23} particles/mol. How many moles of F_{2} molecules can be found in 0.50 moles of F_{2}?

3.0 x 10^{23} molecules

Avogadro's number is 6.0 x 10^{23} particles/mol. How many moles of F_{2} molecules can be found in 6.0 x 10^{23} molecules of F_{2}?

1.0 moles

Avogadro's number is 6.0 x 10^{23} particles/mol. How many moles of F_{2} molecules can be found in 9.0 x 10^{23} molecules of F_{2}?

1.5 moles

Avogadro's number is 6.0 x 10^{23} particles/mol. How many moles of F_{2} molecules can be found in 1.5 x 10^{23} molecules of F_{2}?

0.25 moles

Avogadro's number is 6.0 x 10^{23} particles/mol. How many moles of F atoms can be found in 6.0 x 10^{23} molecules of F_{2}?

2.0 moles of F atoms

What is the empirical formula of Hg_{2}Cl_{2}?

HgCl

What is the empirical formula of NaCl?

NaCl

What is the empirical formula of C_{2}H_{6}?

CH_{3}

What is the empirical formula of P_{4}H_{10}?

P_{2}H_{5}

Give a potential molecular formula for NO_{2}.

NO_{2}, N_{2}O_{4}, N_{3}O_{6}...

Give a potential molecular formula for C_{2}H_{3}0.

C_{2}H_{3}O, C_{4}H_{6}O_{2}, C_{6}H_{9}O_{3}...

How many moles of phosphorus atoms can be found 1.0 mole of H_{3}PO_{4}?

1.0

How many moles of phosphorus atoms can be found 2.0 mole of H_{3}PO_{4}?

2.0 moles

How many moles of phosphorus atoms can be found 0.50 mole of H_{3}PO_{4}?

0.50 moles

How many moles of hydrogen atoms can be found 1.0 mole of H_{3}PO_{4}?

3.0 moles

How many moles of hydrogen atoms can be found 2.0 mole of H_{3}PO_{4}?

6.0 moles

How many moles of hydrogen atoms can be found 0.50 mole of H_{3}PO_{4}?

1.5 moles

How many moles of oxygen atoms can be found 1.0 mole of H_{3}PO_{4}?

4.0 moles

How many moles of oxygen atoms can be found 2.0 mole of H_{3}PO_{4}?

8.0 moles

How many moles of oxygen atoms can be found 0.50 mole of H_{3}PO_{4}?

2.0 moles

The molar mass of carbon is 12 g/mol. The molar mass of oxygen is 16 g/mol. What is the percent by mass of carbon in CO_{2}?

27.3% C

The molar mass of carbon is 12 g/mol. The molar mass of oxygen is 16 g/mol. What is the percent by mass of oxygen in CO_{2}?

72.7% C

The molar mass of carbon is 12 g/mol. The molar mass of oxygen is 16 g/mol. What is the mass of carbon in a 10. g sample of CO_{2}?

2.7 g of C

The molar mass of carbon is 12 g/mol. The molar mass of oxygen is 16 g/mol. What is the mass of oxygen in a 10. g sample of CO_{2}?

7.3 g of C

A sample of a compound made from carbon and oxygen contains 727 grams of oxygen and 273 g of carbon. Is this compound carbon dioxide?

The sample contains 27.3% carbon by mass and 72.7% oxygen by mass. These are the same percentages as CO_{2} so it could be CO_{2} but it also could be any formula that is a whole number multiple of CO_{2} (i.e.; C_{2}O_{4}, C_{3}O_{6}, etc...)

A sugar is made from carbon, hydrogen, and oxygen. A sample of the sugar is determine to contain 40.% carbon and 53% oxygen by mass. What percent of the mass comes from hydrogen?

7% (100-40-53)

What is the mass of one mole of NH_{3}?

17.04 g for 1 mol of NH_{3}.

What is the mass of one mole of Ca(OH)_{2}?

74.10 g for 1 mol of Ca(OH)_{2}.

What is the mass of one mole of Fe_{2}(CO_{3})_{3}?

291.73 g for 1 mol of Fe_{2}(CO_{3})_{3}. (55.85*2+12.01*3+16*9)

What is the formula to calculate molar mass?

Molar mass = m/n

What is the molar mass of a 10. gram sample of a substance that contains 0.50moles of that substance?

20. g/mol; Molar mass = m/n

A sample of an unknown substance contains 0.25 moles of molecules when its mass is 52.5 g. What is its molar mass?

210 g/mol; Molar mass = m/n