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2 years ago

What is the volume in liters of 321 g of a liquid with a density of 0.84 g/mL?

Chemistry

1 answer:

mars1129 [50]2 years ago

8 0

Answer:

<u>0.38 liter</u>

Explanation:

a) V = ?

b) m = 321 g

c) d = 0.84 g/ml

<u>2) Principles and formulae:</u>

Density measures the ratio of the mass and the volume of the substances:

d = m / V

Where:

d is density of the substance
m is the mass of the substance
V is the volume occupied by the substance

<u>3) Calculations:</u>

Solve for V, substitute the data in the formua, and compute:

d = m / V ⇒ V = m / d

V = 321 g / 0.84 g/ml = 382.14 ml

Convert ml to liter:

382.14 ml × 1 liter / 1,000 ml = 0.38 liter (rounded to two decimal places).

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Answer:

1. ΔE = 0 J

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2 years ago

A student has 100. mL of 0.400 M CuSO4 (aq) and is asked to make 100. mL of 0.150 M CuSO4 (aq) for a spectrophotometry experimen

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Answer:

We have to take 37.5 mL of a 0.400 M solution

Explanation:

Step 1: Data given

Stock volume = 100 mL = 0.100L

Stock concentration 0.400 M

Volume of solution he wants to make = 100 mL = 0.100L

Concentration of solution he wants to make = 0.150 M

Step 2: Calculate the volume of 0.400 M CuSO4 needed

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⇒with C1 = the stock concentration = 0.400M

⇒with V1 = the volume of the stock = TO BE DETERMINED

⇒with C2 = the concentration of the solution he wants to make = 0.150 M

⇒with V2 = the volume of the solution made = 0.100 L

0.400 M * V1 = 0.150M * 0.100L

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V1 = 0.0375 L = 37.5 mL

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2 years ago

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