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ella [17]
3 years ago
12

What is the pH of a solution with [OH-] = 5.40 x 10-3 M?

Chemistry
1 answer:
igomit [66]3 years ago
7 0
pH: 5.4E-3
pOH: 13.9946
[H+]: 0.987643022777
[OH-]: 1.01251158256E-14 acid
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1/0.00032 in standard scientific notation
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The answer for 1/0.00032 in standard scientific notation is 3.125 * 10^3.

<u>Explanation</u>:

For conversion of the given number in scientific notation follow

a * 10^b

The steps to see how 3,125  written in scientific notation as follows.

Step 1

To find a, The number is moved right to one decimal place.

Original Number: 3,125

New Number: 3.125

Step 2

Now, to find b, Find the decimal count on the right side.

New Number: 3 .1 2 5

Decimal Count:       1 2 3

There are three places found.

Step 3

Now we can reconstruct the number into scientific notation.

The Scientific notation is: a x 10^b

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b = 3

Now writing the whole thing:

3.125 x 10^3

Step 4

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We are asked to find the final pressure (P2). Since volume is constant, we want to choose a gas law equation that relates initial pressure and temperature to final pressure and temperature. Gay-Lussac's law does this:

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