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scZoUnD [109]
3 years ago
14

How many grams of water are needed to add to 4.00 grams NaOH to create a 2.00% solution

Chemistry
1 answer:
alexira [117]3 years ago
8 0

Answer:

The answer to your question is 200 g

Explanation:

Data

mass of water = ?

mass of NaOH = 4 g

concentration = 2 %

Formula

  % mass = mass of solute/mass of solution x 100

-Solve for mass of solution

  mass of solution = mass of solute / % mass x 100

-Substitution

  mass of solution = 4 / 2 x 100

-Simplification

  mass of solution = 2 x 100

-Result

  mass of solution = 200 g

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Answer:

See explanation and image attached

Explanation:

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The diagram below shows a gas sample being measured with an open-end mercury (Hg) manometer. If a barometer reads 730. 1 torr, w
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<h3>Data obtained from the question</h3>

The following data were obtained from the question:

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<h3>How to determine the pressure of the gas</h3>

The pressure of the gas can be obtained as illustrated below:

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Divide by 760 to express in atm

P = 789 / 760

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brainly.com/question/22523697

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A double displacement reaction in which one of the product is formed as a solid is called as precipitation reaction.  

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