How many grams of NaOH are needed to prepare 100 ml of a 0.5 M aqueous solution of NaOH? (Atomic weights: Na=23, O=16, H=1)

How many hydrogen atoms are contained in 1.50 g of glucose (C6H12O6)?

Which of the following particles are subatomic particles? 1. Electron 2. Proton 3. Neutron 4. Muon Select the correct answer from code given below.

Constituents of atomic nucleus are –

UNESCO inaugurated the celebration of 2019 as the International Year of the Periodic Table of Chemical Elements to celebrate its completion of how many years?

Atomic mass of an element is equal to the sum of number of