In submarines, fresh oxygen gas is produced through the following reaction between sodium peroxide and carbon dioxide: Na2O2 (g) + CO2 (g) --> Na2CO3 (s) + O2 (g)          [unbalanced] If 347 liters of gas are collected over water at 26.0°C and 754 torr,  a) how many mols of O2 are collected? b) how many kg of Na2O2 were originally used in the reaction? The Vapor Pressure of water at 26.0°C is 25.21 torr.  Please show all work

Q What is the mass (in grar OChem101 os//app.101edu.co Question 18 of 20 When copper metal is added to nitric acid, the following reaction takes place Cu (s) + 4 HNO: (aq) → Cu(NO:): (aq) + 2 H2O (I) + 2 NO2 (g) Calculate the volume in liters of NO2 gas collected over water at 25.0 °C when 7.87 g of copper is added to excess nitric acid if the total pressure is 726.0 mmHg. The vapor pressure of water at 25.0 °C is 23.8 mm Hg.

What volume of chlorine gas is required to react completely with 7.31x102 mol of carbon disulfide according to the following reaction at 0°C and 1 atm? carbon disulfide (s) + chlorine(g) >carbon tetrachloride (1) + sulfur dichloride(s) liters chlorine gas

A small amount of oxygen gas may be prepared in the laboratory by the decomposition of potassium chlorate, KClO3, according to the following equation: 2KClO3(s)  2KCl(s) + 3O2(g) A 1.54-g sample of KClO3 is completely decomposed and the oxygen gas produced is collected over water at 25oC and at a total pressure of 757.0 torrs. (a) If the vapor pressure of water at 25oC is 23.8 torr, what is the partial pressure of O2 collected? (b) How many milliliters (mL) of O2 gas are collected under the stated condition? What is the volume of O2 gas if collected at STP?

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The action of some commercial drain cleansers is based on the following reaction: 2 NaOH(s) + 2 Al(s) + 6 H2O(l) -> 2 NaAl(OH)4(s) + 3 H2(g) What is the volume of H2 gas formed at STP when 3.82 g of Al reacts with excess NaOH?

1. The volume of 6.46 grams of an unknown gas is 2.25 L at STP.  What is the molar mass of the gas?     2.  What volumes of CO2 at 25 degress Celsius and 760 torr is produced when 500 grams of calcium carbonate is used to neutralize a sulfuric acid spill?  The equation for the reaction is : CaCO3(s) + H2SO4(aq) -----> CaSO4(s) + CO2(g) + H20(l)

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In the reaction,   2HgO(s)⟶2Hg(s)+O2(g)2HgO(s)⟶2Hg(s)+O2(g)   how many liters of oxygen, O2, measured at STP, would be produced from the decomposition of 229 g of mercury(II) oxide, HgO?