Some Basic Conc...

We have 750 cm³ of 0.6 M Mohr's salt solution (Molar mass = 294 g), which we want to oxidise. How much potassium dichromate is required?

HCl is not used in any titration when oxalic acid is used as an reducing agent (e.g. titrating potassium solution) because ___________.

Which of the following is not an element?

CaO (1.88 g) is obtained from Ca (1.35 g). Use the given data to find Z (atomic weight) of Ca.

M₂O₃ is the formula of metal oxide. What would be the formula of its phosphate?

0.0050 has ______ number of significant digits.

In compound AaBb

What is the atomic mass of A, if 10 g of A₄O₆ has 6.06 g of A?

Calculate the number of molecules in 1/20 g of water.

What is the average weight of a gaseous mixture of H₂ and He, if mixture is equimolar in both components?

Number of atoms in 560 g Fe (Atomic mass 56 g/mol) is _____.

6.0 mg of H₂ gas can reduce 0.1596 mg of an oxide of a trivalent metal.
The molar mass of the metal is:

Find a in SOa if density of gas is 16/5.6 g/l.

In a compound C/H = 9 and N/H = 3.5. The molar mass of the compound is 108 g mol^-1. Its molecular formula is ___________.

The term representing the ratio of atoms in a compound is called ________.