General Chemistry Answers

How many liters will 2.5 moles of gas occupy at 322 K and .90 atm of pressure? *

If a reaction is done in the lab, and 26.4 g of hydrogen, H₂, is produced from 100.0 g of methane, CH₄, reacting with excess water as shown, what is the percentage yield?CH₄ (g) + H₂O (g) → CO (g) + 3 H₂ (g)

Record the number of grams that can be dissolved at this higher temperature 44.1209 grams

In the reaction Mg+Cu^2 = Mg^2 + Cu. What got oxidized? What got reduced? What is the oxidizing agent? What is the reducing agent?

what is the vapor pressure of a solution made by dissolving 225 grams of glucose in 358 mL of water at 30°C? The molar mass of glucose in 180.2 g/mol. What is the vapor pressure lowering? The vapor pressure of pure water at 30°C is 31.82 mmHg. Assume that density of the solution is 1.00 g/mL.

How many mL of 10% w/v NaCl solution is needed to prepare 500 mL of a 0.8 % w/v NaCl solution?

THE AIT BAG EXPERIMENT:

1.the balanced chemical equation for the reaction of sulfuric acid and sodium bicarbonate is:

Na₂SO₄ + H₂O + CO₂

2.the volume of the bag (in liters): 1.20L

3.pressure: 1.0 atm

4.temperature: 23.0 degrees

5.calculate the moles of carbon dioxide needed to fill the bag using the ideal gas law (PV=nRT) equation. Show the calculations:

(n=PV/RT)

• convert temp to K

6.calculate the grams of sodium bicarbonate needed to generate enough carbon dioxide to fill the zip-lock bag taut with an excess of sulfuric acid. (show calculations)

7.calculate the mL of sulfuric acid needed to generate enough carbon dioxide to fill the zip lock bag taut with an excess of sodium bicarbonate:(show the calculations)

An unknown gas occupies a volume of 4.75 L at 1500 K and 5.00 atm. If its mass is 5.45 g, what is the molar mass of the gas?

(4) An unknown gas occupies a volume of 4.75 L at 1500 K and 5.00 atm. If its mass is 5.45 g, what is the molar mass of the gas? Hint: molar mass = dRT/P.

How many single,double,and triple bonds are there in CO2?