Physical Chemistry Answers

How many moles of magnesium hydroxide are present in 10.0 mL of 0.25M Mg(OH)2?

Calculate the value of the translational partition function of O_2
2
​
at 1000 K for a volume of 1 m^3
3
. Submit your answer multiplied by 10^{-32}
−32
(i.e. if you calculate 4.2e33, input 42).

is it necessary to rinse the conical flask with some standard solution of oxalic acid before use for titration?

A compound Z of molecular formula AxBy.nH2O consists of 8.57% A, 45.71% B and 45.72% of water. Determine the values of x, y and n (H=1, O=16, A=27, B=96)

Consider the molecule D-glucose, C6H12O6 , the base molecule in cellulose. Calculate the total number of translational modes (these will be integer values).

The vapour pressure of a sample of benzene is 53.0 kPa
at 60.6°C, but it fell to 51.2 kPa when 0.133 g of an organic
compound was dissolved in 5.00 g of the solvent. Calculate
the molar mass of the compound.

Which solution _0.50 M NaCl or 0.25 M SrCl2_ has a larger concentration when expressed in microgram/ml?

What is the expected freezing point depression (°C) for a solution that contains 0.2 mol of magnesium sulfate dissolved in 1.0 kg of water? (Kf of water is -1.86 °C / m and normal freezing point is 0.0°C)

A reaction of heating calcium carbonate produces calcium oxide and carbon dioxide gas. heat 10.0 g calcium carbonate until no more carbon dioxide gas is givin off the remaining material has a mass of 5.6 G, what mass of carbon dioxide gas is produced in the reaction

Consider the molecule D-glucose, C6H12O6, the base molecule in cellulose. Calculate the total number of vibrational modes