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2. Atoms & Elements

Calculating Molar Mass

2. Atoms & Elements

Calculating Molar Mass

Multiple Choice
What is the molar mass of ammonia (NH_3)?
Multiple Choice
How many moles of calcium (Ca) are present in a 425 g sample of calcium?
Multiple Choice
How many bromide ions (Br^-) are present in 3.50 g of MgBr_2?
Multiple Choice
What is the mass of 2 moles of HgO?
Open Question
Which is the molar mass of BF₃? 10.81 g/mol 29.81 g/mol 48.81 g/mol 67.81 g/mol
Multiple Choice
A sample of an unknown gas has a density of 4.75 g/L at 3.00 atm and 45.0 °C. What is the molar mass of the gas?
Multiple Choice
What is the mass of one mole of sodium chloride, $N a C l$ , to the nearest tenth of a gram?
Multiple Choice
What is the molar mass of strontium chloride (SrCl_2)?
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Open Question
Here is the query: What is the molar mass of fluorine, F₂? Is it 9.00 g/mol, 18.00 g/mol, 19.00 g/mol, or 38.00 g/mol?
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Multiple Choice
What is the mass in grams of 1.00 \(\times\) 10^6 sodium atoms? (Atomic mass of Na = 22.99 g/mol)
Multiple Choice
What is the molar mass of titanium (Ti) in grams per mole?
Open Question
Determine the molar mass of Al₂(SO₄)₃･5H₂O. Provide an answer to two decimal places.
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Open Question
Which is the molar mass of H2O? 10.02 g/mol 16.00 g/mol 17.01 g/mol 18.02 g/mol
Multiple Choice
How many fluorine atoms are present in 135 g of CF2Cl2?
Multiple Choice
What is the molar mass of aspirin (C9H8O4)?