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alina1380 [7]
3 years ago
13

Please help me. My chemistry teacher is not teaching us doing this epidemic

Chemistry
1 answer:
anygoal [31]3 years ago
6 0

Answer:

The answer to your question is below

Explanation:

1.-

Data

[HCl] = 0.3 N

Volume a = 6 ml

[NaOH] = ?

Volume b = 12 ml

Formula

                   [HCl] x Volume a = [NaOH] x Volume b

-Solve for [NaOH]

                   [NaOH] = [HCl] x Volume a / Volume b

-Substitution

                   [NaOH] = 0.3 x 6 / 12

-Simplification

                   [NaOH] = 0.15 N

2.-

Data

[H₂SO₄] = 7 N

Volume a = 12 ml

[KOH] = 3 N

Volume b = ?

Formula

                [H₂SO₄] x Volume a = [KOH] x Volume b

-Solve for Volume b

                Volume b = [H₂SO₄] x Volume a / [KOH]

-Substitution

               Volume b = 7 x 12 / 3

-Simplification

               Volume b = 28 ml

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<h3> Description of mole </h3>

The mole of a substance is related to it's mass and molar mass according to the following equation:

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1 year ago
A chemistry student weighs out of hypochlorous acid into a volumetric flask and dilutes to the mark with distilled water. He pla
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Answer:

<u><em>Volume of NaOH, aka V2 = 6.32 mL to 3 sig. fig.</em></u>

A chemistry student weighs out 0.0941 g of hypochlorous acid (HClo) into a 250. ml. volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.2000 M NaOH solution. Calculate the volume of NaOH solution the student will need to add to reach the equivalence point. Round your answer to 3 significant digits mL.

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<u><em>Volume of NaOH, aka V2 = 6.32 mL to 3 sig. fig.</em></u>

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