Step-by-step explanation:
Answer attached...
<em>Hope it helps:)</em>
23.4. Doubling is twice the amount. So dividing 46.8 by 2 will give you the original number
Answer:
-8
Step-by-step explanation:
We let the amount of 32% acid solution added to be X ,
Firstly, 40 of 0.12 conc. , = 4.8L of acid, and 35.2L non acid
For ever 1 L of 32% acid we add in we get 0.32L of acid and + 0.68L non Acid,
So we formulate an equation
(4.8+0.32X) / (40+X) = 16/100
(4.8+0.32X) = 0.16(40+X) =6.4+0.16X
0.16X = 1.6
X =10
Hence she used 10L of 32% Solution acid.
Answer:
8.75
Step-by-step explanation:
12.5 - 3.75 = 8.75
Hope this helps! :)