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Nimfa-mama [501]
3 years ago
13

A student dissolves 0.0688 mol of sodium hydroxide in water to make a 0.250 L solution. What is the molarity of the solution?

Chemistry
1 answer:
den301095 [7]3 years ago
7 0
Number of moles = 0.0688 moles of NaoH

volume = 0.250 L

Molarity = moles of solute / volume ( L )

M = 0.0688 / 0.250

M = 0.28 M

Answer B
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The table describes how some substances were formed.
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Answer:

Formed by adding 5 g of sugar to 1 L of water

Explanation:

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6 0
3 years ago
If you have a gold chain that weighs 80.7 grams, what is the volume of the chain?​
just olya [345]

The volume of the gold chain is 4.18 cm³

<h3>What is density? </h3>

The density of a substance is simply defined as the mass of the subtance per unit volume of the substance. Mathematically, it can be expressed as

Density = mass / volume

With the above formula, we can determine the volume of the chain. Details below:

<h3>How to determine the volume of the gold chain</h3>

The following data were obtained from the question:

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7 0
2 years ago
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number of moles:

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M = 0.263 / 1.5

M = 0.1753 mol/L

espero ter ajudado!
8 0
3 years ago
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