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Len [333]
2 years ago
13

Oxidation number ofAl2S12O7

Chemistry
1 answer:
Savatey [412]2 years ago
6 0

Answer:

-2? if wrong im sorry please tell me what I did that was incorrect ty  Explanation:

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100gm of a 55% (M/M) nitric acid solution is to be diluted to 20% (M/M) nitric acid.
yawa3891 [41]

Volume of H₂O added = 175 ml

<h3>Further explanation</h3>

Given

100 gm of a 55% (M/M)  and 20% (M/M) nitric acid solution

Required

waters added

Solution

starting solution

mass H₂O = 45%=45 g

%mass of H₂O in new solution = 100%-20%=80%

Can be formulated for %mass H₂O :

\tt \dfrac{45+x}{100+x}=80\%\\\\45+x=0.8(100+x)\\\\45+x=80+0.8x\\\\35=0.2x\rightarrow x=175~g

For water mass=volume(density = 1 g/ml)

So volume added = 175 ml

7 0
3 years ago
2,2,2,3,3,5,7,8 mean median mode
Nesterboy [21]

Answer:it is 3 just look at the middle numbers

Explanation:

6 0
2 years ago
2. How much energy must be removed from a 50.0 g sample of steam in order to get it to condense
Strike441 [17]

Answer:

113 kJ or 113,000J

Explanation:

Since we are condensing it, a physical change in the state of matter is occurring. 113 kJ or 113,000J because of the following equation: Q = 2260 times 50.  2260 is the Heat of Vaporization constant.

5 0
3 years ago
A chemical reaction in which two or more elements switch places is called?
Nina [5.8K]

Answer:

neutralization

Explanation:

8 0
3 years ago
How many grams of H3PO4 are in 175mL of a 2.50M solution of H3PO4?
solmaris [256]
<span>(0.1875 moles)(98.004 g/mole) = 18.37575 g </span>
<span>In correct number of significant figures: 18.4 </span>
5 0
2 years ago
Read 2 more answers
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