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2 years ago

HEEELP! :)

Chemistry

1 answer:

Nadusha1986 [10]2 years ago

8 0

A substance can dissolve in another when they have thee same type of intermolecular interaction.

<h3>What is solubility?</h3>

The term solubility of a solute refers to the extent to which a solute dissolve in a solvent. We must know that a substance can dissolve in another when they have thee same type of intermolecular interaction.

Thus;

a) Octane (C8H18) mixes well with CCl4 because they are both non polar substances.

b) Methanol (CH3OH) is mixed with water in all ratios because the both are polar substances.

c) NaBr dissolves very poorly in acetone (CH3 ― CO ― CH3) because acetone is only slightly polar.

Learn more about solubility:brainly.com/question/8591226

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What does the speed of seismic wave depend on

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Waves depends on density and elasticity of the medium

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How many elements have been discovered so far by scientists

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Answer:

118 elements have been discovered so far

Explanation:

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3 years ago

An aqueous solution of 10.03 g of catalase, an enzyme found in the liver, has a volume of 1.05 L at 27°C. The solution's osmotic

-Dominant- [34]

Answer : The molar mass of catalase is, $2.40\times 10^5g/mol$

Explanation :

Formula used :

$\pi =CRT\\\\\pi=\frac{w}{M\times V}RT$

where,

$\pi$ = osmotic pressure = 0.745 torr = 0.000980 atm (1 atm = 760 torr)

C = concentration

R = solution constant = 0.0821 L.atm/mol.K

T = temperature = $27^oC=273+27=300K$

w = mass of catalase = 10.03 g

M = molar mass of catalase = ?

V = volume of solution = 1.05 L

Now put all the given values in the above formula, we get:

$0.000980atm=\frac{10.03g}{M\times 1.05L}\times (0.0821L.atm/mole.K)\times (300K)$

$M=2.40\times 10^5g/mol$

Therefore, the molar mass of catalase is, $2.40\times 10^5g/mol$

7 0

3 years ago

How does the fossil record suggest common ancestry?

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Answer:

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3 years ago

What is the destiny of an object that has a mass of 20 grams and a volume of 10 millimeters

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Answer:

2gcm⁻³

Explanation:

Given parameters:

Mass of the object = 20g

Volume = 10mL

Unknown:

Density of the object = ?

Solution:

Density of a body is its mass per unit volume;

Density = $\frac{mass}{volume}$

We need to convert mL to cm³ for the volume

1mL = 1cm³;

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So;

Density = $\frac{20}{10}$ = 2gcm⁻³

7 0

3 years ago