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posledela
3 years ago
13

26.0 g of a liquid that has a density of 1.44 g/mL needs to be measured out in a graduated cylinder. what volume should be used

Chemistry
2 answers:
Vaselesa [24]3 years ago
4 0
As Density = Mass/Volume
Mass = 26.0g 
Density = 1.44g/mL
Therefore Volume = Mass/Density
=> Volume = 26.0/1.44 = 18.055... = 18.1mL (to 3 sig figs)

xenn [34]3 years ago
4 0

<u>Answer:</u> The volume of liquid used will be 18.055 mL.

<u>Explanation:</u>

To calculate the volume of liquid, we use the equation for density which is:

\text{Density}=\frac{\text{Mass}}{\text{Volume}}

We are given:

Mass of the liquid = 26 g

Density of the liquid = 1.44 g/mL

Volume of the liquid = ? mL

Putting values in above equation, we get:

1.44g/mL=\frac{26g}{\text{Volume of the liquid}}\\\\\text{Volume of the liquid}=18.055mL

Hence, the volume of liquid used will be 18.055 mL.

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15.0 mL of an unknown clear liquid is added to a 50 mL graduated cylinder. The mass of the liquid is determined to be 12.7 grams
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Answer:

\boxed {\tt A. \ d=0.85 \ g/mL}

Explanation:

Density is found by dividing the mass by the volume.

d=\frac{m}{v}

The mass of the liquid is 12.7 grams.

We know that 15 mL of this liquid was added to a 50 mL graduated cylinder. Therefore, the volume is 15 mL. The 50 mL is not relevant, it only tells us about the graduated cylinder.

m= 12.7 \ g\\v= 15 \ mL

Substitute the values into the formula.

d=\frac{12.7 \ g}{ 15 mL}

Divide.

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Round to the nearest hundredth. The 6 in the tenth place tells us to round the 4 to a 5.

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The density of the liquid is about 0.85 grams per milliliter and choice A is correct.

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