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-Dominant- [34]
3 years ago
8

What is the pH of the solution at the endpoint of a titration

Chemistry
1 answer:
Arada [10]3 years ago
5 0

Answer:

The pH at the equivalence point is 7.0.

Explanation:

This is because the solution only contains water and a salt that is neutral.

Since neither H+ or OH-, molecules remain in the solution.

We can conclude that the equivalence point is 7.0.

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1. The atoms of a certain element each contain 11 protons and 1 valence electron. Which statement correctly identifies this elem
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The answer is A. The element is sodium (Na) and is highly reactive

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3 years ago
If you measure the mass of a liquid is 11.50 g and its volume as 9.03 ml how many significant figures should its density value h
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To get a result with the best degree of precision, the number of significant figures should be equal to the smallest number of significant figures of the given numbers. In this case, the smallest is 3 as given by the number 9.03 mL.

Therefore density is:

<span>11.50 g / 9.03 mL = 1.27 g/mL</span>

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3 years ago
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When the electron from the n=4 excited state drops to the ground state, does it absorb energy or emit energy?
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2 years ago
How many moles of Pb(no3)3 will be required to react with 0.64 mole of KCl?
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7 0
3 years ago
Timed PLS help
Bezzdna [24]

Answer:

19.5g is the theoretical yield of alum

Explanation:

Based on the balanced reaction, 4 moles of sulfuric acid produce 2 moles of alum. To solve this question we need to find the moles of H2SO4. With these moles we can find the moles of alum and its mass assuming all sulfuric acid reacts producing alum.

<em>Moles Sulfuric Acid:</em>

8.3mL = 0.0083L * (9.9mol/L) = 0.08217 moles sulfuric acid

<em>Moles Alum:</em>

0.08217 moles sulfuric acid * (2mol KAl(SO4)2•12H2O / 4mol H2SO4) =

0.041085 moles KAl(SO4)2•12H2O

<em>Mass Alum -Molar mass: 474.3884 g/mol-</em>

0.041085 moles KAl(SO4)2•12H2O * (474.3884 g/mol) =

<h3>19.5g is the theoretical yield of alum</h3>
3 0
2 years ago
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