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99 Percentile Qs Bank for JEE MainChemistrySome Basic Concepts of Chemistry

The mass of hydrogen (in grams) present in 1.0 ~L of pure water of density 1.0 ~g ~cm ⁻³ is

Options

  1. A1.11 10^2
  2. B5.55 10^2
  3. C2.22 10^2
  4. D3.33 10^2

Correct answer

A. 1.11 10^2

Step-by-step solution

Given, V of water =1 ~L =1000 ~mL Density of water =1.0 ~g ~cm ⁻³ To find, mass of hydrogen in water (in g) array rlrl & & d & = m V (for water) & & 1 & = m 1000 & m & =1000 ~g array Molecular mass of H ₂ O =(2 1)+16=18 18 ~g of water has =2 ~g hydrogen 1000 ~g of water has = 2 18 1000 ~g of hydrogen aligned & =111.11 ~g of hydrogen & =1.11 10^2 ~g aligned

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