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pishuonlain [190]
3 years ago
12

Find the mass of a table that has a density of 2.35 g/cm3 and a volume of 12cm3.

Chemistry
1 answer:
Hunter-Best [27]3 years ago
8 0

Answer:

<h2>The answer is 28.2 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

volume of table = 12 cm³

density = 2.35 g/cm³

The mass of the table is

mass = 2.35 × 12

We have the final answer as

<h3>28.2 g</h3>

Hope this helps you

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The cylinder of aluminum in class was approximately 13mm in circumference and 42mm in length. What would be it's approximate mas
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Answer:

Mass, m = 1.51 grams

Explanation:

It is given that,

The circumference of Aluminium cylinder, C = 13 mm = 1.3 cm

Length of the cylinder, h = 4.2 cm

We know that the density of the Aluminium is 2.7 g/cm³

Circumference, C = 2πr

r=\dfrac{C}{2\pi}\\\\r=\dfrac{1.3}{2\pi}\\\\r=0.206\ cm

Density is equal to mass per unit volume.

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V=\pi r^2h\\\\V=\dfrac{22}{7}\times0.206^2\times 4.2\\\\V=0.5601\ cm^3

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