3 years ago

The equation for the pH of a substance is pH = -log[H'], where H+ is the concentration of hydrogen ions. A basic

Mathematics

2 answers:

Oksanka [162]3 years ago

8 0

Answer:

it's b.

Step-by-step explanation:

scoundrel [369]3 years ago

7 0

Answer:

9 (approximately)

Step-by-step explanation:

Approximate difference

= pH of basic solution - pH of acidic solution

= 11.2 - 2.4

= 8.8

= 9 (approximately)

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An arc with length 5 pi over 4 inches is formed by a 15 degree central angle what is the radius of the circle

Natalka [10]

Answer:

Radius of the circle is 15 inches.

Step-by-step explanation:

Relation between length of arc, radius and the angle subtended by the arc on center is:

$\theta = \dfrac{l}{r} ..... (1)$

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3 years ago

There are 12 inches in 1 foot and 5,280 feet in 1 mile. Elena ran 2 1/2 miles.

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2 years ago

Read 2 more answers

What is the slope of the graph of 4x-8y=11?

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In the fomr
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