Percent By Mass
Quiz by Kelly Stephens
High School
Chemistry (2017)
Texas Essential Knowledge and Skills (TEKS)
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includes Teacher and Student dashboards
Measures 1 skill fromHigh SchoolChemistry (2017)Texas Essential Knowledge and Skills (TEKS)
Measures 1 skill from
High School
Chemistry (2017)
Texas Essential Knowledge and Skills (TEKS)
112.35.c.8.c
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5 questions
Show answers
- Q1What is the percent by mass of magnesium in MgO (molar mass of MgO = 40.3 g/mol)?60%50%20%40%30s112.35.c.8.cEditDelete
- Q2What is the percent composition by mass of sulfur in the compound MgSO4 (molar mass of MgSO4 = 120 g/mol)?53%46%27%20%30s112.35.c.8.cEditDelete
- Q3What is the percent by mass of calcium in CaF2 (molar mass = 78 g/mol)?24%49%51%65%30s112.35.c.8.cEditDelete
- Q4What is the percent by mass of Carbon in sugar C12H22O11 ?14%12%34%42%30s112.35.c.8.cEditDelete
- Q5What is the percent by mass of Oxygen in water? H2O.11%50%33%89%30s112.35.c.8.cEditDelete