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3 years ago

An object has a mass of 5.52 g and a volume of 12 mL. What is the density of the object?

Chemistry

1 answer:

Rudik [331]3 years ago

4 0

Answer:

<h2>Density = 0.46 g/mL</h2>

Explanation:

Density of a substance can be found by using the formula

<h3> $Density = \frac{mass}{volume}$ </h3>

From the question

mass = 5.52 g

volume = 12 mL

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

That's

<h3> $Density = \frac{5.52}{12}$ </h3>

We have the final answer as

<h3>Density = 0.46 g/mL</h3>

Hope this helps you

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Answer:

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A given sample of a gas has a volume of 3 liters at a

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Answer:

B) 12

Explanation:

Given parameters:

Initial volume = 3L

Initial pressure = 4atm

Final pressure = 6atm

Unknown:

Final volume = ?

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3 years ago

You are given a sample of an element with ONE valence electron.

Gnoma [55]

Answer:

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3 years ago

Lauryl alcohol is a nonelectrolyte obtained from coconut oil and is used to make detergents. A solution of 6.80 g of lauryl alco

natka813 [3]

Answer:

The approximate molar mass of lauryl alcohol is 174.08 g/m

Explanation:

An excersise to apply the colligative property of Freezing-point depression.

This is the formula: ΔT = Kf . m

First of all, think the T° of fusion of benzene → 5.5°C

ΔT = T° pure solvent - T° fusion solution

Kf for benzene: 5.12 °C/m

5.5°C - 4.5°C = 5.12 °C /m . m

1°C / 5.12 m /°C = m

0.195 m = molality

This moles of lauryl alcohol, solute, are in 1 kg of benzene, solvent.

I have to find out in 0.2 kg.

1 kg sv ____ 0.195 moles solute

0.2 kg sv ____ (0.195 . 0.2)/1 = 0.039 moles solute

The mass for these moles is 6.80 g, so if I want to know the molar mass, I have to divide mass / moles

6.80 g/ 0.039 moles = 174.08 g/m

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3 years ago