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hichkok12 [17]
2 years ago
10

A chemist dissolves 43.3 g Li2S (MM: 45.95 g/mol) to make 0.500 L of solution.

Chemistry
1 answer:
Nata [24]2 years ago
7 0

The molarity of her solution will be 1.88 M

<h3>What is Molarity ?</h3>

Molarity is defined as the number of moles of solute dissolved in per litre of solution.

Molarity of the solution = number of moles of solute / volume of solution in litre

number of moles of solute = given weight / molecular weight

                                            = 43.3 / 45.95

                                            = 0.942 moles

Now, lets calculate Molarity ;

Molarity of the solution = number of moles of solute / volume of solution in litre

                                       = 0.942 / 0.500

                                       = 1.88 M

Hence, The molarity of her solution will be 1.88 M

Learn more about Molarity here ;

brainly.com/question/2817451

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Concentrated sulfuric acid contains very little water, only 5.0% by mass. it has a density of 1.84g/ml. what is the molarity of
kvasek [131]
When m for water is only 5 % so, m for the acid is (m%) = 95%

and D = 1.84 g/ml, assume 1 L of solution therefore,
1- D= m / v
m = D x v =  1.84 g/ml x 1 L x 10^3 ml /L
                 = 1840 g solution
2- m% = m acid / m sol x 100 %
m acid = 1840 g H2So4 x 0.95
            = 1750 g H2So4
3- n = 1750 g H2So4 x 1 mol H2So4 x 98.09 H2So4
   = 17.8 mol H2So4
4- So the molarity of { H2So4} = n / v = 17.8 mol H2So4 / 1 L
                               = 17.8 M
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What is the molecular geometry of H2O?
Kaylis [27]

Answer:

polar, v-shaped or bent

Explanation:

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The safety air bags in automobiles are inflated by nitrogen gas generated by rapid decomposition of sodium azide (NaN 3).
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According to the reaction represented by the unbalanced equation above, how many moles of so2(g) are required to react completel
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Does anyone have the data table answers for 8.03 - Solutions Lab Report?
choli [55]

A laboratory report is an important part of the scientific process that communicate the important work that has been done.

<h3>How to depict the laboratory report?</h3>

Your information is incomplete. Therefore, an overview of a laboratory report will be given. The laboratory report is important for future studies a d experiments.

A laboratory report is broken down intosections such as title, abstract, introduction, methods, materials, results, discussion conclusion, and references.

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