How many liters of H, gas would be produced by the complete reaction of 2.93 g of Al solid at STP according to the following reaction? Remember 1 mol of an ideal gas has a volume of 22.4 Lat STP. 2 Al (s) + 6 HCI (aq) - 2 AICI, (aq) + 3 H, (g) X = AMOUNT

205L of carbon dioxide at STP is compressed and then dissolved in 10.0L of water. What is the molar concentration of teh resulting solution?

6. The carbon dioxide gas in a half-liter bottle of Coke has a volume of 5.09 L at STP. How many grams of CO2 are in this amount of soda?

80 g of CaCO3 is treated with 0.500 L of a 1.00M solution of HCl. What volume of CO2 gas, measured at 25˚C and 800. mm Hg can be obtained?                                                                         CaCO3(s)    +   2HCl(aq)    ®   CO2(g)    +   CaCl2(aq)  +  H2O(l) Show all equation and all calculations involved to get full marks. Hint: this is a limiting type question Use the following questions as guide and include them in your answer. the limiting reactant is? the maximum number of moles of CO2 gas that can be produced is? the volume of CO2 gas that can be produced from this reaction is?

- Exhaust gas from an automobile contains air and 10^-5 mole fractions of COin air at 25 degC and 1.2 atm. Express this concentration as a mass concentration (kg/m3).

(ans: -7.50 x 10 ) one mole of sucrose). Imol %3D 9reaction=n AH %3D %3D (ans: -5.64 x 10 kJ/mol) Calcium chloride and sodium hydroxide react according to the equation: CaCl(aq) + 2 NaOH(aq) → Ca(OH),(s) +2 NaCl(aq) What volume of 2.00 M NaOH would be needed to react with 50.0 mL of 1.50 M CaCl,? a, 017 (ans: 75.0 mL) b) When 50.0 mL of 1.50 M CaCl, solution and 80.0 mL of 2.00 M NAOH solution (i.e., 5.0 mL more than calculated in part (a)) both initially at 22.3°C are mixed in a coffee-cup calorimeter with a calorimeter constant of 12.8 J/ C, the temperature fell to 20.0°C. If the density of the reaction mixture is 1.03 g/mL and its specific heat 3.94 J/g°C, calculate the heat absorbed hv the reaction. (ans: 1.24 x 103) c) Calculate AH (in kJ per mole of Ca(OH)2 formed) for the reaction. (ans: 1.6 x 10' kJ/mol)

In the fermentation of sucrose Calculate how many milliliters of CO2 (at STP) would be produced assuming all of the sucrose were consumed during fermentation. with 10g of sucrose.

A gaseous mixture consists of 1.54 mol of helium, 0.36 mol of neon, and 1.58 mol of argon. What is the mole fraction of helium in the mixture?