Physical Chemistry Answers

how many grams of NaOH is produced from 120 grams

How many litres of hydrogen gas will be produced by the decomposition of 90L of water? Assume that temperature and pressure are constant

2H2O 2H2 + O2

Which compound in this chemical equation indicates that the reaction is a precipitation reaction?

2NaOH(aq) + MgCl2(aq) → 2NaCl(aq) + Mg(OH)2(s)

A.
NaOH
B.
MgCl2
C.
NaCl
D.
Mg(OH)2

The value of Kc is 4.24 at 800 Kelvin temperature for the reaction --> CO(g) + H20(g) -----> CO2(g) + H2(g) . If initial concentration is 0.10 M . Find the concentration of each components.

Find out the effective half life for A in the following radioactive change:
A--B(t1/2=6 hours)
A--C(t1/2=12hours)

Calculate the solublity of Al2(SO4)3 if solublity constant product is 6.2*10^-5

An organic molecule in hexane exhibits λmax = 305 nm and in ethanol λmax = 307 nm. What type of transition is responsible for this absorbance band and why did you choose it?

Why depression in freezing point is more than elevation in boiling point, when a non volatile solute is added to a pure solvent?
Explain

Calculate Degree of dissociation of 0.1M CH3COOH in presence of 2M HCl

What is the difference between heat of solution and integral heat of solution?