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Zielflug [23.3K]
2 years ago
13

.How many grams of NaCl required to form a 500ml solution with a molarity of 0.5M , the molar mass of NaCl is 58.5g/mol?

Chemistry
1 answer:
MaRussiya [10]2 years ago
6 0
The answer will be 14.625
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A solid and a liquid are shaken together in a test tube to produce a clear blue liquid. Which of the following best describes th
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<span>the behavior of the above pair of substances</span> is soluble

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3 years ago
Which of the following has a mass of 10.0 g?
Serjik [45]

Answer:

a.  0.119mol Kr

Explanation:

To solve this problem, we must understand that;

     Mass  = number of moles x molar mass

Molar mass of Kr  = 83.3g/mol

                        Ar = 40g/mol

                        He = 4g/mol

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a0.119 mol Kr               mass  = 0.119 x 83.3 = 9.9g

b 0.400 mol Ar             mass  = 0.4 x 40  = 16g

C 1.25 mol He               mass  = 1.25 x 4  = 5g

d 2.02 mol Ne              mass  = 2.02 x 20.18  = 40.8

Krypton is the answer

5 0
2 years ago
Is classified as a substance <br><br> A. Elements and compound <br><br> B.mixtures
Vika [28.1K]
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Answer:

Germanium

Explanation:

The element Germanium is one with a relative molecular mass of 72. This corresponds to the mass number of this element.

Relative molecular mass of an element is the mass of a formula unit to that of a carbon-12 atom.

The chemical symbol of Germanium is Ge. It is a lustrous and hard metalloid belonging to the carbon group.

It was discovered by Clemens Alexander Winkler.

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3 years ago
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