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A clown tells you he needs 15 moles of helium gas to make balloon animals. How much will that gas weigh in grams?
86.27 grams/ 1 mole of MgNO3
78.99 grams / 1 mole of Na(CO)2
.63 moles of Au
18.66 x 10^23 atoms of Lithium
Na
60.0 grams of Helium gas
.4 x 10^-8 moles of NaCl
1.05 moles of CaO
What is the molar mass of Na(CO)2?
86.27 grams/ 1 mole of MgNO3
78.99 grams / 1 mole of Na(CO)2
.63 moles of Au
18.66 x 10^23 atoms of Lithium
Na
60.0 grams of Helium gas
.4 x 10^-8 moles of NaCl
1.05 moles of CaO
You have discovered 1 mol of an unknown substance. When you weigh the substance it weighs exactly 22.990 grams. What element have you found?
86.27 grams/ 1 mole of MgNO3
78.99 grams / 1 mole of Na(CO)2
.63 moles of Au
18.66 x 10^23 atoms of Lithium
Na
60.0 grams of Helium gas
.4 x 10^-8 moles of NaCl
1.05 moles of CaO
You have 59.0 grams of calcium oxide (CaO). How many moles is this?
86.27 grams/ 1 mole of MgNO3
78.99 grams / 1 mole of Na(CO)2
.63 moles of Au
18.66 x 10^23 atoms of Lithium
Na
60.0 grams of Helium gas
.4 x 10^-8 moles of NaCl
1.05 moles of CaO
What is the molar mass of MgNO3 ?
86.27 grams/ 1 mole of MgNO3
78.99 grams / 1 mole of Na(CO)2
.63 moles of Au
18.66 x 10^23 atoms of Lithium
Na
60.0 grams of Helium gas
.4 x 10^-8 moles of NaCl
1.05 moles of CaO
How many atoms are in 3.1 moles of Lithium?
86.27 grams/ 1 mole of MgNO3
78.99 grams / 1 mole of Na(CO)2
.63 moles of Au
18.66 x 10^23 atoms of Lithium
Na
60.0 grams of Helium gas
.4 x 10^-8 moles of NaCl
1.05 moles of CaO
You are trying to build a gold metal boat that weighs 125 grams. How many moles of gold (Au) do you need to build your boat?
86.27 grams/ 1 mole of MgNO3
78.99 grams / 1 mole of Na(CO)2
.63 moles of Au
18.66 x 10^23 atoms of Lithium
Na
60.0 grams of Helium gas
.4 x 10^-8 moles of NaCl
1.05 moles of CaO
How many moles are in 2.4 x 10^15 particles of NaCl?
86.27 grams/ 1 mole of MgNO3
78.99 grams / 1 mole of Na(CO)2
.63 moles of Au
18.66 x 10^23 atoms of Lithium
Na
60.0 grams of Helium gas
.4 x 10^-8 moles of NaCl
1.05 moles of CaO
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