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Zinaida [17]
3 years ago
5

What is the concentration of OH– ions at a pH = 6?

Physics
1 answer:
makkiz [27]3 years ago
8 0
<h3><u>Answer;</u></h3>

1 × 10^-8 M

<h3><u>Explanation</u>;</h3>

pH is given by the -log[H+] while

pOH is given by the -log[OH-]

But;

pH + pOH = 14

Thus; if pH is 6, then pOH = 8

pOH = 8

-log[OH-] = 8

[OH-] = 10^-8 M

The concentration of OH- ions at a pH of 6 is 1 × 10^-8 M

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Answer:

V=2.8534m/s \approx 3m/s

Explanation:

From the question we are told that

Acceleration a=0.460m/s

Distance traveled S_1=8.5m

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Generally the velocity of the ball at the bottom of the first plane V is mathematically given by

v^2=2as

v=\sqrt{2as}

V=\sqrt{2*0.460*8.85}

V=2.8534m/s \approx 3m/s

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