2 years ago

What amount of pure acid must be added to 600 mL of a 20% acid solution to produce a 75% acid solution?

1 answer:

6 0

You must add another 600ml acid. Good luck and pls mark as brainliest if I helped

You might be interested in

Strike441 [17]

Answer:

See explanation

Step-by-step explanation:

The range of the cosine function is $-1\le \cos x\le 1$

Therefore $arc \cos (-2\sqrt{2})$ is not defined.

Assuming your question is rather $arc \cos (-\frac{\sqrt{2}}{2})$

Then $arc \cos (-\frac{\sqrt{2}}{2})=\pi-arc \cos (\frac{\sqrt{2}}{2})$ in the second quadrant.

$arc \cos (-\frac{\sqrt{2}}{2})=\pi-\frac{\pi}{4}$

$arc \cos (-\frac{\sqrt{2}}{2})=\frac{3\pi}{4}$

4 0

3 years ago

Volgvan

Answer:

they are both equal the are both half's

Step-by-step explanation:

2 is a half of 4 and 4 is a half of 8 so they both basically 1/2

can i have brainly

7 0

3 years ago

goldenfox [79]

-2 and -8 or (x+2),(x+8)

8 0

3 years ago

klio [65]

Answer:

x=1

Step-by-step explanation:

First, we must simplify it to standard form:

8 0

3 years ago

evablogger [386]

The answer is 9 if you plug them in

6 0

3 years ago