3 years ago

What does ROCAPV stand for?

Chemistry

2 answers:

Irina-Kira [14]3 years ago

6 0

Answer:Risk Management, Operational Controls, Compliance, and Asset Quality

Explanation:

Strike441 [17]3 years ago

6 0

Is a product at 100 percent with no use or diminished life span.

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How many neutrons are in the element phosphorus?

Art [367]

Finding neutrons = Mass number - proton number.
For finding neutrons for phosphorus = 31-15
=16.

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3 years ago

Acetic acid (HC2H3O2, Ka=1.8x10^-5) is a weak acid. Calculate the pH of an aqueous solution of .25M acetic acid.

tensa zangetsu [6.8K]

Answer: The pH of an aqueous solution of .25M acetic acid is 2.7

Explanation:

$HC_2H_3O_2\rightarrow H^+C_2H_3O_2^-$

cM 0 0

$c-c\alpha$ $c\alpha$ $c\alpha$

So dissociation constant will be:

$K_a=\frac{(c\alpha)^{2}}{c-c\alpha}$

Give c= 0.25 M and $\alpha$ = ?

$K_a=1.8\times 10^{-5}$

Putting in the values we get:

$1.8\times 10^{-5}=\frac{(0.25\times \alpha)^2}{(0.25-0.25\times \alpha)}$

$(\alpha)=0.0084$

$[H^+]=c\times \alpha$

$[H^+]=0.25\times 0.0084=0.0021$

Also $pH=-log[H^+]$

$pH=-log[0.0021]=2.7$

Thus pH is 2.7

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3 years ago

____________ is a point source of water pollution; _____________ is a nonpoint source of water pollution.

Deffense [45]

Answer:

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Explanation:

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2 years ago

Which two elements have chemical properties that are most similar?

masya89 [10]

Answer:

Li and Na

Explanation:

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3 years ago

Tungsten fits best into which category?

nordsb [41]

Answer:

B. Element

Explanation:

Tungsten is an chemical element

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2 years ago

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