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3 years ago

7

Using the information in the chart, the distance and displacement of each object can be determined. Which object has a distance

that is three times as great as its displacement? W X Y Z

2 answers:

Zigmanuir [339]3 years ago

7 0

Answer:

Z

Explanation:found it from another site

schepotkina [342]3 years ago

5 0

Answer:the ansaaaaa ezzzzzzzzzz zzzzzzzzzzz

Explanation:

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Ammonia is the most common and well-known weak base. A sample of household ammonia has a pH of 11.8. Determine its concentration

Galina-37 [17]

The given question is incomplete. The complete question is:

A sample of household ammonia has a pH of 11.50. What is the hydronium ion concentration of this solution?

Answer: The hydronium ion concentration of the solution is $1.58\times 10^{-12}M$

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 and bases have pH ranging from 7.1 to 14.

$NH_3+H_2O\rightarrow NH_4^++OH^-$

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

$11.8=-log [H^+]$

$[H^+]=antilog(-11.8)$

$[H^+]=1.58\times 10^{-12}M$

Thus hydronium ion concentration of this solution is $1.58\times 10^{-12}M$

7 0

3 years ago

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