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Zinaida [17]
2 years ago
14

Una solución tiene un valor de pH=5 Cuál es la concentración molar de OH-?​

Mathematics
1 answer:
Mnenie [13.5K]2 years ago
5 0

Answer:

Podemos hacer la conversión entre [\text{H}^+][H

+

]open bracket, start text, H, end text, start superscript, plus, end superscript, close bracket y \text{pH}pHstart text, p, H, end text mediante las siguientes ecuaciones:

\begin{aligned}\text{pH}&=-\log[\text{H}^+]\\ \\ [\text H^+]&=10^{-\text{pH}}\end{aligned}

pH

[H

+

]

=−log[H

+

]

=10

−pH

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What is m∠B? (view attached file)
Pepsi [2]

Answer:

m∠B = 141°

Step-by-step explanation:

sides of polygon (n) = 7

sum of angles of polygon = {(n - 2) * 180°}

= {(7 -2)*180°}

= 5* 180°

= 900°

Now,

m∠B = 900° - 148° - 142° - 130° - 129° - 120° - 90°

m∠B = 141°

4 0
2 years ago
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3 years ago
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one number is 4 times a first number. A third number is 100 more than the first number. if the sum of the three numbers is 592 f
kati45 [8]

<u>Answer</u>

1st number = x

2nd number = 4x

3rd number = x + 100

sum of three numbers = 592

x + 4x + x + 100 = 592

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6x = 592 - 100

6x = 492

x = 492/6

x = 82

1st number, x = 82

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1st number, x = 822nd number, 4x = 3283rd number, x+100 = 182

check :

82 + 328 + 182 = 592

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3 0
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What is 61,734 divided by 46
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