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krok68 [10]
2 years ago
7

Can you make a solution with a pH of 7 by changing ions?

Chemistry
1 answer:
love history [14]2 years ago
6 0
No, because NaCl is a neutral salt and doesn't affect the pH. Obviously such a high salt concentration change the chemical activity of the ions so the acid-base equilibrium will change. Even if you had added a strong acid would you see the effect of salt as pH is defined as the log to the activity of H+.
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A certain object has a volume of 25.0 ml and a mass of 100 g. what is the density of the object
Tpy6a [65]
Density= mass/volume

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8 0
3 years ago
How much heat must absorbed by the reaction system to convert 100g of NaNO3 into NaHSO4(s)?
Alex787 [66]

Answer:

about 4.8kJ

Explanation:

6 0
2 years ago
A boy found a solid metal box in his backyard. The box had been buried for so long, it was difficult to determine from what the
Alex777 [14]

Answer:

Box is made up of <em>copper</em>, because density is <em>8.96  g/cm³.</em>

Explanation:

Given data:

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Solution:

First we will calculate the density of box then we will compare it with the density value of given metals.

d = m/v

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d = 8.96  g/cm³

The calculated density is similar to the given density value of copper thus box is made up of copper.

4 0
3 years ago
By definition 12 grams of carbon-12 must contain how many atoms?
krek1111 [17]
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5 0
3 years ago
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The correct answer is B) Chlorine, Sulfur, and Silicon

I'm 100% sure this is correct

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7 0
3 years ago
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