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Lisa [10]
3 years ago
6

. What is the percentage error for a mass measurement of 17.7 g, given that the correct value is 21.2 g?

Chemistry
1 answer:
lakkis [162]3 years ago
7 0

Answer: 16.5% First, determine the total error by subtracting the accepted value from the value you measured. e = 17.7 -21.2 = -3.5 Then

divide the error

Explanation:

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Air has a mass of 1.2g and a volume of 4,555ml. What is the density
coldgirl [10]

Answer:

<h2>Density = 0.00026 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

<h3>Density(\rho) =  \frac{mass}{volume}</h3>

From the question

mass of air = 1.2 g

volume = 4,555 mL

Substitute the values into the above formula and solve for the density

That's

<h3>Density =  \frac{1.2}{4555}</h3>

= 0.0002634

We have the final answer as

<h3>Density = 0.00026 g/mL</h3>

Hope this helps you

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