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Nikolay [14]
4 years ago
15

A washing powder contains sodium hydrogencarbonate

Chemistry
1 answer:
Vladimir [108]4 years ago
3 0
False.
Washing soda is sodium carbonate(Na₂CO₃).
Baking soda is sodium hydrogen carbonate(NaHCO₃).
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Answer:

The appropriate answer is "9.225 g".

Explanation:

Given:

Required level,

= 63 ppm

Initial concentration,

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Now,

The amount of free SO₂ will be:

= Required \ level -Initial \ concentration

= 63-22

= 41 \ ppm

The amount of free SO₂ to be added will be:

= 41\times 225

= 9225 \ mg

∵ 1000 mg = 1 g

So,

= 9225\times \frac{1}{1000}

= 9.225

Thus,

"9.225 g" should be added.

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3 years ago
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<u>Answer:</u> Option B

<u>Explanation:</u>

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6 0
3 years ago
What is the chemical formula for the ionic compound calcium chloride?
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The answer to your question is,

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6 0
4 years ago
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tatyana61 [14]

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Explanation:

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