High School

Thank you for visiting The molar mass of Hâ O is 18 02 g mol How many grams of Hâ O are present in 0 20 mol A 0. This page is designed to guide you through key points and clear explanations related to the topic at hand. We aim to make your learning experience smooth, insightful, and informative. Dive in and discover the answers you're looking for!

The molar mass of Hâ‚‚O is 18.02 g/mol. How many grams of Hâ‚‚O are present in 0.20 mol?

A. 0.2 g
B. 3.6 g
C. 35.9 g
D. 89.9 g

Answer :

Final answer:

To find the mass of 0.20 moles of Hâ‚‚O, we multiply the number of moles by the molar mass (0.20 mol × 18.02 g/mol), which equals 3.6 grams. Therefore, correct option is b) 3.6 g.

Explanation:

To determine the number of grams of Hâ‚‚O present in 0.20 moles, we can use the formula:

Mass (g) = Moles (mol) × Molar Mass (g/mol)

First, we need to find the molar mass of Hâ‚‚O, which is the sum of the atomic masses of its constituent elements. Hydrogen (H) has a molar mass of approximately 1 g/mol, and oxygen (O) has a molar mass of approximately 16 g/mol.

So, the molar mass of Hâ‚‚O = (2 × 1 g/mol) + (1 × 16 g/mol) = 2 g/mol + 16 g/mol = 18 g/mol

Now that we know the molar mass of Hâ‚‚O, we can calculate the mass of 0.20 moles of Hâ‚‚O:

Mass (g) = 0.20 mol × 18 g/mol = 3.6 g

Therefore, there are 3.6 grams of Hâ‚‚O present in 0.20 moles. Hence, correct option is b) 3.6 g.

Learn more about mass:

brainly.com/question/17736126

#SPJ11

Thank you for reading the article The molar mass of Hâ O is 18 02 g mol How many grams of Hâ O are present in 0 20 mol A 0. We hope the information provided is useful and helps you understand this topic better. Feel free to explore more helpful content on our website!

Rewritten by : Jeany

Other Questions