Week 3 Quiz- General Chemistry
Quiz by Kari Stone
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8 questions
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- Q1What is the molar mass of glucose (C6H12O6)?150.16 g/mol90.08 g/mol120.12 g/mol180.16 g/mol300s
- Q2How many moles are there in 50 grams of calcium carbonate (CaCO3)?0.25 moles1.5 moles1.25 moles0.5 moles300s
- Q3What is the percent composition by mass of oxygen in sulfuric acid (H2SO4)?78.5%65.7%45.6%34.3%300s
- Q4Which element has the chemical symbol Pb?PhosphorusBoronLeadLithium300s
- Q5What is the atomic number of oxygen?681632300s
- Q6
Determine the empirical formulas for compounds with the following percent compositions: 15.8% carbon and 84.2% Sulfur.
Users enter free textType an Answer300s - Q7
How many oxygen atoms are there in 0.5 moles PbO2 (use "E" to indicate the exponent)
Users enter free textType an Answer300s - Q8
What type of metal is Pt?
Users enter free textType an Answer300s