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MAVERICK [17]
2 years ago
13

A solution has a [H3O+] of 1 × 10−3 M. What is the [OH−] of the solution?

Chemistry
1 answer:
Marina CMI [18]2 years ago
5 0

Answer:

D. 1x10⁻¹¹ M

Explanation:

For any given aqueous solution the<em> following formula</em> is true:

1x10⁻¹⁴ = [H₃O⁺] * [OH⁻]

1x10⁻¹⁴ is the ion-product constant of water, <em>Kw</em>.

We <u>input the given value of [H₃O⁺]</u>:

1x10⁻¹⁴ = 1x10⁻³ * [OH⁻]

And <u>solve for [OH⁻]</u>:

[OH⁻] = 1x10⁻¹¹ M

Thus the correct answer is option D. 1x10⁻¹¹ M.

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Calculate the osmotic pressure (in torr) of 6.00 L of an aqueous 0.958 M solution at 30.°C, if the solute concerned is totally i
cluponka [151]

<u>Answer:</u> The osmotic pressure is 54307.94 Torr.

<u>Explanation:</u>

To calculate the concentration of solute, we use the equation for osmotic pressure, which is:

\pi=iCRT

where,

\pi = osmotic pressure of the solution = ?

i = Van't hoff factor = 3

C = concentration of solute = 0.958 M

R = Gas constant = 62.364\text{ L Torr }mol^{-1}K^{-1}

T = temperature of the solution = 30^oC=[30+273]K=303K

Putting values in above equation, we get:

\pi=3\times 0.958mol/L\times 62.364\text{ L. Torr }mol^{-1}K^{-1}\times 303K\\\\\pi=54307.94Torr

Hence, the osmotic pressure is 54307.94 Torr.

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3 years ago
A straight line on a graph means there is a ______ relationship between the dependent variable and the independent variable.
dangina [55]
Proportional linear relationship
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Read 2 more answers
I have a buddy who recycles electronics, and isolates metals from the connector pins electrical boards. He isolates gold, for ex
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Answer:

Theoretical yield = 3.75g

Explanation:

Percent yield is defined as one hundred times the ratio between actual yield and theoretical yield. The expression is:

Percent yield = Actual Yield / Theoretical Yield * 100

In the problem, your actual yield was 3-00g.

Percent yield is 80.0%.

Solving for theoretical yield:

80% = 3.00g / Theoretical yield * 100

Theoretical yield = 3.00g / 80.0% * 100

<h3>Theoretical yield = 3.75g</h3>
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3 years ago
the individual components of a solution_____.a: can be separated by physical meansb: are chemically combinedc: react to form com
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Aqueous sodium bromide reacts with chlorine gas to form aqueous sodium chloride and liquid bromine .
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Answer:

2 NaBr(aq) + Cl₂(g) ⇒ 2 NaCl(aq) + Br₂(l)

Explanation:

Let's consider the unbalanced equation that occurs when aqueous sodium bromide reacts with chlorine gas to form aqueous sodium chloride and liquid bromine. This is a single displacement reaction.

NaBr(aq) + Cl₂(g) ⇒ NaCl(aq) + Br₂(l)

We will start balancing Cl atoms by multiplying NaCl by 2.

NaBr(aq) + Cl₂(g) ⇒ 2 NaCl(aq) + Br₂(l)

Then, we get the balanced equation by multiplying NaBr by 2.

2 NaBr(aq) + Cl₂(g) ⇒ 2 NaCl(aq) + Br₂(l)

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2 years ago
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