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Alisiya [41]
3 years ago
5

A liquid is found to have a volume of 50 mL (in a graduated cylinder). When placed on a balance, the liquid and graduated cylind

er has a mass of 125 g. The empty graduated cylinder has a mass of 75 g. What is the density of the liquid?
Chemistry
2 answers:
DanielleElmas [232]3 years ago
7 0
Heyyyyyyyyyyyyyyyyyyyyyy
aliina [53]3 years ago
5 0

Answer:

1 g/ml^3

Explanation:

Volume= 50 mL

mass= 125 initial mass-75 graduated cylinder= 50 g

d= m/v , 50g/50mL

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What mass of Sodium Chloride is required to make 100.0 mL of 3.0 M solution?
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17.55 g of NaCl

Explanation:

The following data were obtained from the question:

Molarity = 3 M

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Next, we shall convert 100.0 mL to L. This can be obtained as follow:

1000 mL = 1 L

Therefore,

100 mL = 100/1000

100 mL = 0.1 L

Therefore, 100 mL is equivalent to 0.1 L.

Next, we shall determine the number of mole NaCl in the solution. This can be obtained as follow:

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Cross multiply

Mole of NaCl = 3 × 0.1

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Finally, we determine the mass of NaCl required to prepare the solution as follow:

Mole of NaCl = 0.3 mole

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Mass of NaCl =?

Mole = mass /Molar mass

0.3 = mass of NaCl /58.5

Cross multiply

Mass of NaCl = 0.3 × 58.5

Mass of NaCl = 17.55 g

Therefore, 17.55 g of NaCl is needed to prepare the solution.

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What is the name of the gas law relating pressure and volume at a<br> constant temperature?
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Answer:

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