General Chemistry Answers

What is the total energy required in joules to raise the temperature of 150.0 g of water in 12.0°C to 164°C

36.0 moles of ammonia (NH3) react with sulfuric acid to produce ammonium sulfate.  How many moles of ammonium sulfate are produced?

What mass of iron is needed to react with 16.0 grams of Sulfur

Which of the following statement is true?

A. A lead-acid battery uses non-aqueous salt bridge

B. An alkaline battery is not rechargeable

C. A lead-acid battery contains several dry cells working together.

D. The interior of a lead-acid battery breaks down during use.

E. None of the above.

Why is hydrogen tetraoxosulphate (vi) regarded to as aquafortis

If you add 40. mL of water to a beaker which contains 20. mL of a 5.0 M solution, what will be the new concentration?

(a) what physical process occurred in this described numerical below??

(b) Consider an ideal gas contained in a cylinder with the volume 34.4L, temperature 667K and pressure 2atm.what will be pressure of the gas if it is heated at 1000k and the volume becomes 50L. 

Use the following information: A container has 8360.0 torr of Nitrogen, 5.000 atm of Oxygen, 101.3 kPa of Argon, and 760.0 mm Hg of Carbon Dioxide.

What is the mole fraction of Carbon Dioxide?

A. 0.0556

B. 0.0670

C. 0.2567

D. 0.6676

E. 0.7572

For the equation CH4 + 2O2 →CO2 + H2O + 803.1 kJ, how much heat will be released if 2.0 x 10^1 g of CH4 react with sufficient O2? _______

A. 883 kJ

B. 883 kJ/mol

C. 1.0 x 10^3 kJ

D. 1.0 x 10^3 kJ/mol

E. None of the Above

What is the pH when 15.0 g of the strong nitric acid (HNO₃, molar mass= 63.02 g/mole) is added to 825 mL of total solution?

Solution: