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For the reaction below, 64.9 g CaCO3 is mixed with 99.6 g of XCI. How many grams of CO2 will be produced? CaCO3 (s) + 2 XCI (aq) --> CaCl2 (aq) + CO₂ (g) + X₂0 (1) You may not use all of the following molar mass information CaCO3 (s) = 100.09 g/mol XCI (aq) = 59.0 g/mol CaCl₂ (aq) = 110.98 g/mol CO₂ (g) = 44.01 g/mol X₂O (1) 98.12 g/mol. Your answer should have 3 significant figures. Your Answer: Answer units
(1.3x10^3) L of (6.90x10^-2) M XY is mixed with excess metal Z. How many grams of solid were produced? 2XY+Z-> ZY2 (s) + X2 (g) You may or may not need any or all of the following Molar Masses XY 30.00 g/mol Z = 40.00 g/mol ZY280.00 g/mol X2 = 20.00 g/mol Your answer must: Contain 2 significant figures Include the proper abbreviation for units • The answer must be formatted in scientific notation. Note: Your answer is assumed to be reduced to the highest power possible.
Hydrogen gas reacts with bromine gas to form hydrogen bromide. How many grams of hydrogen, H₂, are required to produce 10.8 g of hydrogen bromide? H₂ + Br2 → 2 HBr Your answer should have 3 significant digits. Your Answer: Answer units