Open Question
Determine the formula weight of Al2(SO4)3. Provide an answer to two decimal places.
2. Atoms & Elements
Calculating Molar Mass
Back2. Atoms & Elements
Calculating Molar Mass
- Open Question
What is the molar mass of (NH4)2O? Explain how you calculated this value.
- Open Question
What is the molar mass of Mg3(PO4)2, a substance formerly used in medicine as an antacid?
- Open Question
What is the molar mass of Mg3(PO4)2, a substance formerly used in medicine as an antacid?
- Open Question
What is the molar mass of (NH4)2O? explain how you calculated this value.
- Open Question
Determine the molar mass of Al2(SO4)3･5H2O. Provide an answer to two decimal places.
- Multiple ChoiceWhat is the mass in grams of 5.47 × 10^19 molecules of CCl2F2 (molar mass = 120.91 g/mol)?
- Multiple ChoiceWhat is the mass of sodium (Na) in grams present in 7.5 grams of sodium benzoate (NaC7H5O2)?
- Multiple ChoiceA 5.65 g sample of a weak acid with Ka=1.3×10⁻⁴ was combined with 5.20 mL of 5.90 M NaOH and the resulting solution was diluted to 750 mL. The measured pH of the solution was 4.20. What is the molar mass of the weak acid?
- Multiple ChoiceA condensation reaction involving 200 glucose molecules, C6H12O6, results in a polysaccharide. What is the molar mass, in g/mol, of the polysaccharide, assuming complete reaction and loss of water molecules?
- Multiple ChoiceCalculate the mass percent composition of carbon in C2H6O.
- Multiple ChoiceCalculate the mass, in grams, of 0.105 moles of sucrose (C12H22O11), given that the molar mass of sucrose is approximately 342.3 g/mol.
- Multiple ChoiceWhat is the molar mass of chloroform (CHCl₃) given that a sample weighing 0.389 g is collected in a flask with a volume of 102 cm³ at 97°C and a pressure of 728 mmHg?
- Multiple ChoiceHow many fluorine atoms are present in 135 g of CF2Cl2?
- Multiple ChoiceHow many grams are in 0.16 moles of sodium carbonate (Na2CO3)?