2 years ago

In the following reaction, if you wanted to produce more hydrochloric acid (HCl), what should you do? (2 points)

Chemistry

1 answer:

Paul [167]2 years ago

3 0

Answer:

Add more H2O

Explanation:

Took the test

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soaps do not work well in hard waters. But they can still be effected it large quantities of soap are added to water. Explain wh

zmey [24]

The minerals in hard water react with soap and affect its cleaning capacity. It's still possible to use hard water when washing by using more soap. The additional soap will no longer be affected by the minerals in the water, so they can clean just as effectively, but you'll be wasting more soap this way.

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2 years ago

What is the concentration of H3O+ ions in saliva if [OH-] = 4.22 x 10-10 M? Provide the pH and the classification of this sample

OLEGan [10]

pH=4.625

The classification of this sample of saliva : acid

<h3>Further explanation</h3>

The water equilibrium constant (Kw) is the product of concentration

the ions:

Kw = [H₃O⁺] [OH⁻]

Kw value at 25° C = 10⁻¹⁴

It is known [OH-] = 4.22 x 10⁻¹⁰ M

then the concentration of H₃O⁺:

$\tt 10^{-14}=4.22\times 10^{-10}\times [H_3O^+]\\\\(H_3O^+]=\dfrac{10^{-14}}{4.22\times 10^{-10}}=2.37\times 10^{-5}$

pH=-log[H₃O⁺] $\tt pH=5-log~2.37=4.625$

Saliva⇒acid(pH<7)

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3 years ago

What particle is J.J Thomson credited with discovering

Ilya [14]

He was credited with discovering the subatomic particle also known as the electron in 1897.

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3 years ago

If i add 25 mL of water to 125 mL of a 0.15 M NaOH solution, what will the molarity of the diluted solution be ?

marshall27 [118]

1000 mL=1L

25 mL = 0.025 L
125 mL = 0.125 L

M1V1=M2V2
0.15(0.125) = M2(0.025)
0.01875 = M2(0.025)
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0.75 M

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2 years ago

Does sodium fluoride follow the octet rule? If not, which exception is it?

krek1111 [17]

Answer:

Sodium fluoride (NaF) does indeed follow the octet rule without any violations.

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