Other Chemistry Answers

In the calorimeter, the student dissolved 4.25 g of solid ammonium nitrate in 60.0 ml of water with an initial temperature of 22.0 °C. When the ammonium nitrate was completely dissolved, the temperature of the solution was 16.9 °C. Based on the measurement results, calculate the heat of dissolution of ammonium nitrate in kJ/mol.

How much energy is released when 1 mol of ethanol burns? Calculate using the heat of formation.

C₂H₅OH (I) + 3O₂ (g) → 2CO₂ (g) + 3H₂O (I)

1. Write the following reaction equations:

a) Oxidation of 1-propanol

b) 2-butanol is oxidized

c) oxidation of cyclohexanol

d) Oxidation of 2-methyl-2-butanol

e) reduction of acetic acid

f) ethylene + Cl₂

g) hydrogenation of 2-hexene

h) 2-pentanol - H₂O (removal of water from 2-pentanol)

The dimensions of aluminum foil in a box for sale in supermarket are 66 2/3 years by 12 inches. The mass of the foil is 0.83 kg. if its density is 2.70 g/cm³, then what us the thickness of the foil in inches?

If 7.50 g of methane gas (CH) is in a 3250 mL container at 25° C, what is the pressure inside the container?

What volume will 0.75 moles of Oxygen gas (O2) occupy at 30°C and a pressure of 52.7 kPa?

If 7.50 g of methane gas (CH4) is in a 3250 mL container at 25° C, what is the pressure inside the container?

How much potassium phosphate buffer (1.5M, pH 8) is required to make 100 ml of a 10 mM solution? How much water?

what mass of bromine will be produced if a potassium bromide solution reacts with 60.0mL of a 1.30mol/L solution of acidified NaCIO4

Consider the decomposition reaction:           CuCO₃.Cu(OH)₂   →  2CuO + CO₂ + H₂O             

       Calculate the theoretical yield of carbon dioxide, CO₂, produced by the decomposition reaction if 10.0 g of CuCO₃.Cu(OH)₂ are consumed. Copper (II) carbonate – copper (II) hydroxide has a molar mass of 221.13 g/mol.