Other Chemistry Answers

The specific heat capacity of silver is 0.24 J/°C·g.
(a) Calculate the energy required to raise the temperature of 160.0 g Ag from 273 K to 303 K.
______ J
(b) Calculate the energy required to raise the temperature of 1.0 mol Ag by 1.0°C (called the molar heat capacity of silver).
_____ J/mol°C
(c) It takes 1.15 kJ of energy to heat a sample of pure silver from 12.0°C to 15.1°C. Calculate the mass of the sample of silver.
____ in grams

How many grams of oxygen are required to burn 4.4 gram of C3 h8?

Calculate the ionization energy of hydrogen atom using bohr's theory.

A sample of MgCO3•3H20 (magnesium carbonate trihydrate) is heated until 40.37 grams of water are released. How many grams did the original hydrate weigh?

At 25oC and 1atm pressure, ethylene glycol has a density of 1.11g/mL. Calculate the volume of 0.025kg of ethylene glycol.

if density of 3M NaCl solution is 1.25g/ml. then what is molelity of it?

A 3.6 gram sample of sodium hydrogen carbonate is added to a solution of acetic acid weighing 10.2 grams. The two substances react, releasing carbon dioxide gas to the atmosphere. After the reaction, the contents of the reaction vessel weighs 11.2 grams. What is the mass of carbon dioxide released during the reaction?

How to calculate the equivalent mass of Barium hydroxide octahydrate?

The chemical analysis of a sample of solid fuel shows it to contain 80.6% carbon, 2.8% hydrogen and 1.1% sulphur. The remainder is incombustible material which remains as ash. Determine (i) the oxygen required for complete combustion of each of the combustible elements per kilogram of fuel and (ii) the theoretical mass of air required for complete combustion per kilogram of the fuel. The oxygen content of air by mass is 23%.

Indicates the oxidized element and the reduced element in the following chemical equation.
H2AsO4 + H2S → H7AsO3 + S + H2O