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andrew-mc [135]
3 years ago
11

You begin pouring sodium chloride into a glass of water. For a long time, the sodium chloride just dissolves in the water, but s

uddenly it begins to pile up at the bottom of the glass. Which statement is true?
Chemistry
1 answer:
cricket20 [7]3 years ago
4 0

The options are:

A. The sodium chloride has increased the temperature of the water.

B.he sodium chloride has decreased the temperature of the water.

C.The water is unsaturated.

D. The water is saturated

Answer:

D

Explanation:

An unsaturated solution is one that doesn't have as much solute as it could take. This is the reason why the sodium hydroxide kept dissolving as it was added until at a point where the solution has taken as much solute as it could hold.From that point any additional sodium hydroxide added wont dissolve and would pile up at the bottom of the glass

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An analysis reveals that a substance consists of 26.7% of carbon, 2.24% of hydrogen and 71.1% of oxygen, If the molar mass of th
exis [7]
 the   molecular  formula    is  calculated  as  follows 
find  the  mole  of  each  molecule 
that  is   for  carbon = 26.7/12=  2.23  moles
                   hydrogen=  2.24/1=2.24  moles
                 oxygen=  71.1/16=4.44  moles
find  the   mole  ratio  of  each  element
that  is  divide  all  moles  by  the  smallest  mole(  2.23)

for  carbon=2.23/2.23=1,
  hydrogen =  2.24/2,23=1
  oxygen= 4.44/2.23=  2
the   empirical  formula  = CHO2
therefore  the  molecular  formula=(CHO2)n=270.1
                 { ( 12x 1)  + 1x1) +(16x2)}n=270.1
45n=270.1 
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lisov135 [29]
The answer to your question is: true.

Hope this helps!
8 0
3 years ago
Read 2 more answers
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