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Calculate the mass percent composition of carbon in C2H6O.
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2. Atoms & Elements
Calculating Molar Mass
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How many grams are in 0.16 moles of sodium carbonate (Na2CO3)?
A
8.48 grams
B
16.96 grams
C
16.96 grams
D
16.96 grams
Guida verificata passo dopo passo1
Identify the molar mass of sodium carbonate (Na2CO3). To do this, sum the atomic masses of all the atoms in the formula: 2 sodium (Na) atoms, 1 carbon (C) atom, and 3 oxygen (O) atoms.
Use the periodic table to find the atomic masses: Sodium (Na) is approximately 22.99 g/mol, Carbon (C) is approximately 12.01 g/mol, and Oxygen (O) is approximately 16.00 g/mol.
Calculate the molar mass of Na2CO3: (2 * 22.99 g/mol) + (1 * 12.01 g/mol) + (3 * 16.00 g/mol).
Use the formula: mass (grams) = moles * molar mass. Substitute the given moles (0.16 moles) and the calculated molar mass of Na2CO3 into this formula.
Perform the multiplication to find the mass in grams of 0.16 moles of sodium carbonate.
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