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Crazy boy [7]
2 years ago
14

С

Chemistry
1 answer:
algol [13]2 years ago
6 0

The percent composition  of this compound :

Mg = 72.182%

N = 27.818%

<h3> Further explanation </h3>

Given

9.03 g  Mg

3.48 g  N

Required

The percent composition

Solution

Proust stated the Comparative Law that compounds are formed from elements with the same Mass Comparison so that the compound has a fixed composition of elements

Total mass of the compound :

= 9.03 g + 3.48 g

= 12.51 g

The percent composition :

Mg : 9.03/ 12.51 g x 100% = 72.182%

N : 3.48 / 12.51 g x 100% = 27.818%

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What is the pH of a solution made by mixing 200 mL of 0.025M HCl and 150 mL of 0.050 M HCl?
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Answer:

The answer to your question is pH = 1.45  

Explanation:

Data

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Process

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Solution 1

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result

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-result

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