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svetlana [45]
3 years ago
8

What is the mass in kg of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml? Report the result with the corr

ect number of significant figures?
Chemistry
1 answer:
Irina-Kira [14]3 years ago
4 0

Given data:

Volume of glucose solution = 2.00 L

Density of glucose = 1.15 g/ml = 1.15 * 10^3 g/L

Density of a substance is the amount of that substance present in a unit volume. i.e.

Density = Mass/volume

Therefore, Mass of glucose = Density of glucose solution * Volume of the solution

= 1.15 * 10^3 g/L * 2.00 L = 2.30*10^3 g

Now,

10^3 g = 1 kg

therefore a mass of 2.30*10^3 g = 1 kg * 2.30*10^3 g/10^3 g = 2.30 kg


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1.

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That is because when converting the g into kg, you have to multiply the value by 1 x 10⁻³. When converting mL into L, you should again multiply the volume by 1 x 10⁻³. Then those 1 x 10⁻³ will cancel off and the original value will remain as same.

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<em>Explanation;</em>

When immersing an object in a solution, the increased volume indicates the volume of that object.

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4.

Accepted value is the value that scientists and community accept as true. This is a theoretical value.

But the measured value is the value that you obtain from doing experiments. This is the actual value.

If your measured value is more close to the accepted value, then your measured value is more precise. But, if your measured value is far away from accepted value means that your value is not precise and there may have some errors.

5.

Answers : Percent error is 9.11 %

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Percent error can be calculated by using following formula.

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