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pentagon [3]
2 years ago
7

What is the H concentration in a solution with a pH of 1. 25? Round to the nearest hundredth. × 10n M n=.

Chemistry
1 answer:
Over [174]2 years ago
3 0

The pH is the measure of hydrogen ion concentration in a solution. The hydrogen ion concentration at pH 1.25 is  \rm\bold{ 5\;\times 10^{-2}\;M}.

<h3>How to calculate hydrogen concentration?</h3>

The pH is the negative logarithmic value of the hydrogen ion concentration in the sample.

The pH can be expressed as:

\rm pH=-log[H^+]

The hydrogen ion concentration can be given as:

\rm [H^+]=10^{-pH}

The given pH is 1.25 The hydrogen ion concentration is given as:

\rm [H^+]=10^{-1.25}\\H^+=0.05\;M\\H^+=5\;\times\;10^-^2\;M

The hydrogen ion concentration in the solution is \rm 5\;\times\;10^{-2}\;M.

Learn more about pH, here:

brainly.com/question/491373

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3 years ago
Toluene, c6h5ch3, is a liquid compound similar to benzene, c6h6. it is the starting material for other substances, including tri
babymother [125]
Toulene = 35.6 g 
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6 0
3 years ago
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How many grams of water at 25 C must be mixed in an insulated container with 250 grams of water at 93 C if the final temperature
nydimaria [60]

Answer:

Explanation

Comment

Normally you would just use m*c*delta T. But the c is the same in both cases, so you need just use m*deltaT

Givens

25 degrees

m = ?

T = 25

t = final temp = 75

93 degrees

m = 250

T = 93

t = final temp = 75

Solution

(t - 25)*m = (93 - t) * 250                   Remove the brackets

75*m - 25m = 93*250 -  250*75      Combine the right

m(75 - 25) = 23250 - 250*75

50 m = 23250 - 18750                      Combine

50 m = 4500                                      Divide both sides by 50

50*m/50 = 4500/50

m = 90

Answer: 90 grams are needed.

7 0
1 year ago
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