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2 years ago

How many protons are in 10 ml of a solution that is at ph 1? (use avogadro's number as 6 x 10^23)?

1 answer:

3 0

<span>According to the Avogadro's constant: 1 mole = 6 x 10 protons
So number of moles,n, in 10mL of 0.1M is (this is the same as 0.1M = 0.1mol/L)
n = MV
n = (0.1 mol/L)(10 mL x 1L / 1000mL)
n = 0.001 moles
Then 1 mole = 6 x 10 protons
0.001 moles contains 6 x 10 protons /mol
So 0.001* 6 * 10 protons in 10 ml ph1 liquid</span>

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A sample of a substance has these characteristics:

MArishka [77]

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2 years ago

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Arrange the molecules H2O, NH3, Ar, NaCl in order of expected increasing boiling points. 1. None of these 2. NaCl, H2O, NH3, Ar

Aleks04 [339]

Answer:

Option (4) is correct

Explanation:

NaCl is an ionic solid. $Na^{+}$ and $Cl^{-}$ ions are held together by strong coloumbic attractive force. Hence NaCl has highest boiling point'
Ar is a monoatomic molecule. Hence only weak london dispersion force exists between Ar atom/molecules. Hence it requires lowest amount of energy to boil and thereby possess lowest boiling point.
$NH_{3}$ and $H_{2}O$ are polar protic molecules. Hence they possess london dispersion force, dipole-dipole force and hydrogen bonding as intermolecular forces.
Dipole-dipole force is stronger in $H_{2}O$ than $NH_{3}$ due to more polar O-H bond than N-H bond. Also molecular weight of $H_{2}O$ is higher than $NH_{3}$ . So, more energy is required to boil $H_{2}O$ . So, $H_{2}O$ has higher boiling point than $NH_{3}$

Hence order of boiling point : $NaCl>H_{2}O>NH_{3}>Ar$

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2 years ago

The heat gained by the ice melted the ice and raised the temperature of the melted ice from its initial temperature to the final

liberstina [14]

Answer:

True

Explanation:

When ice is heated, the ice gains heat.

This heat gained by the ice is both used to break the intermolecular forces in ice to form water, as well as to raise the temperature of the water to it's final temperature.

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2 years ago

As an experiment a science class puts vinegar and baking soda into a large bottle and then puts a cork in the bottle. The carbon

Furkat [3]

Chemical energy to kinetic energy

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2 years ago

Calculate the silver ion concentration in a saturated

Stolb23 [73]

Answer:

0.015 M

Explanation:

Let's consider the solution of silver (I) sulfate.

Ag₂SO₄(s) ⇄ 2 Ag⁺(aq) + SO₄²⁻(aq)

In order to find the solubility (S) of silver (I) sulfate, we will use an ICE chart.

Ag₂SO₄(s) ⇄ 2 Ag⁺(aq) + SO₄²⁻(aq)

I 0 0

C +2S +S

E 2S S

The solubility product (Ksp) is:

Ksp = 1.4 × 10⁻⁵ = [Ag⁺]².[SO₄²⁻] = (2S)².S = 4S³

S = 0.015 M

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3 years ago