Four grams of a mixture of calcium carbonate and sand is treated with an excess of hydrochloric acid , and 0.880 g of CO2 is produced. What is the percent of CaCO3 in the original mixture?
Four grams of a mixture of calcium carbonate and sand is treated with an excess of hydrochloric acid , and 0.880 g of CO2 is produced. What is the percent of CaCO3 in the original mixture?
An anesthetic gas contains 64.81% carbon, 13.60% hydrogen, , and 21.59 % oxygen by mass. If 2.00 L of the gas at 25 oC and 0.420 atm weighs 2.57 g, what is the molecular formula of the anesthetic?
Capsaicin, the compound that gives the hot taste to chili peppers, has the formula C18H27NO3. If you eat 55 mg of capsaicin, how many molecules have been consumed?
Calculate the volume of CO2 at 77oF and 765 mmHg required to produce 0.100 kg of Ca(HCO3)2 by its reaction with Ca (OH)2.
Equation: CO2 + Ca(OH)2 -----> Ca(HCO3)2
What is the molar mass of 2.6 g of a gas that occupies a volume of 680 mL ;0.85 atm and 28oC?
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