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Chemistry Week 17 Review (Module 5) Questions And Answers Exam
Chemistry Week 17 Review (Module 5) Questions And Answers Exam
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Chemistry Week 17 Review (Module 5)2024-2025 Questions And Answers
Exam
MgCO3 x 5H2O - A 15.67 gram hydrated sample of magnesium carbonate
(MgCO3 · n H2O) was heated over a Bunsen burner. After the water was
driven off, the remaining anhydrous salt weighed 7.58 g. Determine the
formula of the hydrate.
Na2CO3 x 2H2O - A hydrate of sodium carbonate (Na2CO3 · n H2O) with
a mass of 4.31 g was heated until all the water was removed. The
remaining mass after heating was 3.22 g. Determine the formula of the
hydrate.
CH2 - Combustion analysis was performed on a hydrocarbon. After
combustion, 33.01 g CO2 was produced, and 13.51 g H2O was produced.
Determine the chemical formula of the compound.
Given (7.33 g H2O) x 1/PT Mass (1/18.01 g H2O) x Mole Ratio between
unknown & given (2 mol H2/2 mol H2O) x Liters to Mole (22.4L/1 mol)
Answer= 9.12 L H2 - Water was decomposed into its constituent gases.
7.33 grams of water was decomposed; how many liters of hydrogen gas
were generated if the reaction was performed at STP? ______ H2O (l) →
______ H2 (g) + ______ O2 (g)
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