Calculate the molecular mass of the following:(i) H2O (ii) CH4

Answers (1)
S Sumit

(i) H2O:

Molecular mass of H2O = (2 × Atomic mass of hydrogen) + (1 × Atomic mass of oxygen)

                                      = [2(1.0084) + 1(16.00 u)]

                                      = 2.016 u + 16.00 u

                                      = 18.016 u

(ii) CH4:

The molecular mass of methane = (1 × Atomic mass of carbon) + (4 × Atomic mass of hydrogen)

                                                    = [1(12.011 u) + 4 (1.008 u)]

                                                    = 12.011 u + 4.032 u = 16.043 u

 

Preparation Products

JEE Main Rank Booster 2021

This course will help student to be better prepared and study in the right direction for JEE Main..

₹ 13999/- ₹ 9999/-
Buy Now
Rank Booster NEET 2021

This course will help student to be better prepared and study in the right direction for NEET..

₹ 13999/- ₹ 9999/-
Buy Now
Knockout JEE Main April 2021 (Easy Installments)

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 4999/-
Buy Now
Knockout NEET May 2021

An exhaustive E-learning program for the complete preparation of NEET..

₹ 22999/- ₹ 14999/-
Buy Now
Knockout NEET May 2022

An exhaustive E-learning program for the complete preparation of NEET..

₹ 34999/- ₹ 24999/-
Buy Now
Exams
Articles
Questions