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grin007 [14]
2 years ago
9

A 1.34 mole sample of LiCl dissolves in water, The volume of the final

Chemistry
1 answer:
Mamont248 [21]2 years ago
0 0

Answer:

1.56 \,\,mol/L

Explanation:

Molarity of the solution measures number of moles of a solute per litre of solution.

Molarity = volume of solution in litres/number of moles of solute dissolved in solution

Volume of solution in litres = 0.86 L

Also, 1.34 mole sample of LiCl dissolves in water

So,

Molarity of the Solution = \frac{1.34}{0.86}=1.56 \,\,mol/L

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If honey has a density of 1.36 g/ml what is the mass of 1.25 qt reported in kilograms
yawa3891 [41]
Answer;
1.6 kg.

Solution;
 
The density is 1.36 g/ml;

The volume is 1.25 qt
However; 1 qt = 946.35 ml 

Mass is given by; density × volume;
    = 1.25 qts × 946.25 ml/qt × 1.36 g/ml =1609 g 
but; 1 kg = 1000 g
Hence the mass = 1609/1000 = 1.609 Kg or 1.61 (sig figs)

7 0
2 years ago
A 360. mg sample of aspirin, C9H8O4, (molar mass 180. g), is dissolved in enough water to produce 200. mL of solution. What is t
Gemiola [76]

Answer:

Molarity = 0.01 M

Explanation:

Molarity is used to measure the concentration of a solution. It will be same for the whole solution or a small amount of solution if the solution is homogeneous.

So, <u>Molarity of 200 mL of solution = Molarity of 50 mL of solution</u>

\mathbf{Molarity = \frac{number \ of \ moles \ of \ solute}{Volume \ of \ solution \ (in \ liters)}}

\mathbf{Moles = \frac{given \ mass \ of \ compound}{molar \ mass \ of \ compound}}

given mass of aspirin = 360 mg = 0.36 g

molar mass of aspirin = 180 g

Volume of solution = 200 mL = 0.2 L

\mathrm{Mole \ of \ Aspirin = \frac{0.36}{180} = \mathbf{0.002 \ moles}}

\mathrm{Molarity = \frac{0.002}{0.2} = \mathbf{0.01 \ M}}

Therefore, Molarity = 0.01 M

7 0
2 years ago
Eddie is going to do an experiment to find out which freezes more easily—distilled water or salt water. In what order should he
mel-nik [20]

1. Make a Prediction

2. Fill both beakers with water

3. Dissolve salt in one of the beakers

4. Place both in the freezer and observe

5. Write a report

(Always make the prediction first! That's a hypothesis!)

4 0
2 years ago
Read 2 more answers
In the human body hydrochloric acid is responsible for the low ph of the contents of the
natulia [17]
The wording makes this question difficult, but HCl is found in stomach acid. Hope this helps!
4 0
2 years ago
Suppose there is 0.63 g of HNO3 per 100 mL of a particular solution. What is the concentration of the HNO3 solution in moles per
Vadim26 [7]

Answer:

There are 0.09996826 moles per liter of the solution.

Explanation:

Molar mass of HNO3: 63.02

Convert grams to moles

0.63 grams/ 63.02= 0.009996826

Convert mL to L and place under moles (mol/L)

100mL=0.1 L

0.009996826/0.1= 0.09996826 mol/L

4 0
2 years ago
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