Aqueous sulfurous acid (H2SO3) was made by dissolving 0.200 L of sulfur dioxide gas at19°C and 745 mmHg in water to yield  500.0 mL of solution. The acid solution required 10.5 mL of sodium hydroxide solution to reach the titration end point. What was the molarity of the sodium hydroxide solution?

(Record your answer with rounded answer to proper significant digits and the proper units.) 1.How many moles of butane (C4H10(g)) were combusted in the presence of excess oxygen gas if 55.8 L of water vapour at STP is collected?Hint: Write a balanced chemical reaction equation first. 2.One of the steps to sweeten sour gas using the Claus process is reacting hydrogen sulfide gas with sulfur dioxide gas to produce water vapour and sulfur. 16H2S(g)+8SO2(g)----->16H2O(g)+3S8(s)  8.75 kL of hydrogen sulfide at 175 kPa and 250 °C reacts with excess sulfur dioxide. Calculate the mass, in kg, of sulfur produced.

A commercial 737 jet transporting 143 passengers and 5 crew members from Kansas city (MCI) to Baltimore (BWI) burned 11800 lb. of Jet A fuel. Jet A fuel is kerosene based, consisting primarily of CnH2n+2 hydrocarbons, with n = 6 to 16, so the  Carbon:Hydrogen ratio is close to 1:2. During this flight  How much CO2 would be released into the atmosphere if those passengers and crew made the trip instead, in pairs, in hybrid cars at 50 miles per gallon. (Assume the density of gasoline to be 0.75kg L-1 and that carbon and hydrogen dominate the composition in a ratio 1:2. The road trip is 1082 miles.

Solid potassium chlorate, KCIO3, decomposes upon heating to form potassium chloride and oxygen gas. Write a balanced chemical equation for the reaction. The volume of oxygen that would form at standard temperature and pressure if 0.456 g KCIO3 decomposes is mL. Answer must be verified.

Mass→Mass & Mass→Vol : Zinc citrate is used in toothpaste it is synthesized from zinc carbonate and citric acid according to the following reaction. A) What mass of Zn₃(C₆H₅O₇)₂ can be produced from 2240. g of ZnCO₃? B) How many L of CO₂ will be produced at STP by this amount?

What is the volume @ STP of 3.29x10^25 molecules of CO2? Round to 2 decimal places.

The human body burns glucose (C6H12O6) for energy according to this chemical reaction: C6H12O6+6O2→ 6CO2+6H2O The products of the reaction are carbon dioxide CO2 and water H2O Interestingly, all of the carbon dioxide and much of the water exits the body through the lungs: on every breath, the average person exhales 500.mL of air, which is typically enriched to 4% CO2 and 5% water vapor by volume. In short, when a person loses weight by dieting, the weight that is lost actually departs his body as a gas, every time he exhales. Each kilogram of body fat lost requires exhaling about 2.9kg of carbon dioxide. Calculate how many breaths it takes an average person to "exhale" 0.50kg  of fat. Round your answer to the nearest thousand. You'll need to know that the density of CO2 is 2.0 kg/m^3 .

5. Calculate the volume of oxygen consumed at SATP (25 °C, 100kPa) by the combustion of 10.4 kg of propane, C3H8. (

A student measured the concentration of H₂SO4 by titrating it with 3 L of NH3 at 646 torr and 305 K. The experiment revealed that 144 mL of H₂SO4 was required to neutralize the NH3. Calculate the concentration of the acid in terms of normality. 1.80 N 0.780 N 0.708 N 0.540 N 277 ADVAN

How many grams of sodium hydrogen carbonate decompose to give 28.7 mLmL of carbon dioxide gas at STP? 2NaHCO3(s)⟶ΔNa2CO3(s)+H2O(l)+CO2(g)