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Olin [163]
2 years ago
8

Plz hleeeeeeeeeep meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Chemistry
1 answer:
andrezito [222]2 years ago
4 0
Runoff (Hope this helped)
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If 33.6 grams of kcl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass? 21.2% kc
trapecia [35]
Ms ( mass of solute): 33,6g
mss (mass of solution): 33,6+192g = 225,6g
__________________
C = ms/mss × 100%
C = 33.6/225.6 × 100%
C = 14,89% ≈ 14,9%

:•)
4 0
3 years ago
Read 2 more answers
How many particles are there in 5.0 moles​
grigory [225]

Answer:

3.01 × 10^24 particles

Explanation:

According to Avagadro, in one mole of a substance, there are 6.02 × 10^23 atoms or particles.

Using the formula: N = n × NA

Where;

N= number of particles or atoms

n = number of moles

NA = Avagadro's constant or number

This means that for 5 moles of a substance, there will be:

5 × 6.02 × 10^23

= 30.1 × 10^23

= 3.01 × 10^24 particles

8 0
3 years ago
Why is water (h2o) considered to be a polar molecule?
Klio2033 [76]
A water molecule, because of its shape, is a polar molecule.
5 0
3 years ago
When a chemical reaction occurs what happens to the properties of the substance
Talja [164]

Answer:

the molecules in the reactants interact to form new substances.

Explanation:

8 0
3 years ago
How many atoms are in KOH?
Nata [24]

Answer:

KOH contains only one K, so a mole of KOH contains one mole of K. How many atoms of K are in 1 mole of KOH? There are 6.022 × 1023 atoms of potassium in every mole of potassium. Since one mole of KOH contains one mole of K, the answer is 6.022×1023 atoms of K.

Explanation:

3 0
3 years ago
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