SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Mass percent of Hydrogen in NaOH is
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2
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2.5
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3
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3.5
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Explanation:
Detailed explanation-1: -Note: The percent creation of NaOH, otherwise called sodium hydroxide, is 57.48 percent sodium, 40% oxygen, and 2.52 percent hydrogen.
Detailed explanation-2: -To prepare the solution, place 4.0 grams of NaOH, weighed to the nearest tenth of a gram, in a bottle or beaker and add approximately 500 mL of water.
Detailed explanation-3: -Explanation: Well, know that 1 M=1 mol/L . So, a solution with a concentration of 2.5 M NaOH would mean 2.5 moles of sodium hydroxide per one liter of this solution.
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