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tekilochka [14]
2 years ago
8

In a titration to find the concentration of 30ml of a H2SO4 solution, a student found that 40ml of 0.2M KOH solution was needed

to reach the endpoint. What's the concentration of the H2SO4?
Question 21 options:



A) 0.27M




B) 0.53M




C) 0.4M




D) 1.1M
Chemistry
1 answer:
lianna [129]2 years ago
6 0

the queation is so difficult

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Answer:

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Explanation:

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7 0
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Which of the following is not true of "concentration"?
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The correct answer is B. The concentration of a solution does not decreases when you add more solute to the solvent. Instead, the concentration increases. Concentration is expressed as the amount of solute per unit of solvent. Therefore, increasing the solute, increases this value and increasing the solvent, decreases this value.
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3 years ago
List and briefly explain the four types of intermolecular forces of attraction.
kow [346]

Answer:

Which statements describe polyatomic ions? Check all that apply.

Polyatomic ions have many charges.

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Polyatomic ions are made up of two or more types of atoms.Explanation:

8 0
3 years ago
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Whitepunk [10]

Answer:

The combustion of hydrogen–oxygen mixtures is used to produce very high temperatures (approximately 2500 °C) needed for certain types of welding operations. Consider the reaction to be

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Explanation:

i hope this help sorry if it does not ok bye luv!!!

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