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Butoxors [25]
3 years ago
8

What is the pOH of a solution that has a OH - concentration equal to 1.3x 10^-10

Chemistry
2 answers:
Paul [167]3 years ago
7 0

Answer: 9.88 (approx10)

Explanation:

The pOH of a solution is the negative logarithm of the hydroxide-ion concentration

larisa [96]3 years ago
3 0

Answer: pOH = 9.88

Explanation:pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

Acids have pH ranging from 1 to 6.9, bases have pH ranging from 7.1 to 14 and neutral solutions have pH equal to 7.

pH=-\log [H^+]

pOH=-\log[OH^-]

Putting in the values:

pOH=-\log[1.3\times 10^{-10}]

pOH=9.88

pH+pOH=9.88

pH=14-9.88=4.12

Thus as pH is less than 7 the solution is acidic and pOH is 9.88.

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3 years ago
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There are two different compounds of sulfur and fluorine.
weqwewe [10]
Atomic mass of F: 19.0 g/mol

Atomic mass of S: 32.1 g/mol

1.18 g F = [1.18 g / 19.0 g / mol] = 0.062  mol F

1 g S =  1 g/ 32.1 g/mol = 0.031  mol S

Divide by 0.031

0.062 mol F / 0.031 = 2  mol F

0.031 mol S / 0.031 = 1 mol S

SF2 Then X = 2

Verification:
F2 = 2*19.0 g = 38 g F
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7 0
3 years ago
What effect does salt have on a marshmallow?
Naily [24]

Answer:

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2 years ago
Which elements have the most properties in common with magnesium
Lunna [17]
The group that magnesium is in has all the elements that are alike to it.
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5 0
3 years ago
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ziro4ka [17]
<h2>Answer:0.5 moles,1 mole</h2>

Explanation:

Sr(NO_{3})_{2} is readily soluble in water.

Sr(NO_{3})_{2} dissolves in water to give Sr^{2+} ions and NO_{3}^{-} ions.

The reaction is

Sr(NO_{3})_{2}→Sr^{2+}+2NO_{3}^{-}

So,1 mole of Sr(NO_{3})_{2} gives 1 mole of Sr^{2+} and 2 moles of NO_{3}^{-}.

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5 0
3 years ago
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