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TiliK225 [7]
3 years ago
12

Please somebody help i need to pass to the next grade

Chemistry
1 answer:
svlad2 [7]3 years ago
5 0

Reactions occur when two or more molecules interact and the molecules change. Bonds between atoms are broken and created to form new molecules.

I belive its A.

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D. It is the sharing of electrons between atoms with an electronegativity difference below 1.7

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g If 50.0 mL of a 0.75 M acetic acid solution is titrated with 1.0 M sodium hydroxide, what is the pH after 10.0 mL of NaOH have
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pH = 2.66

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First we <u>calculate the number of moles of each reactant</u>, using the <em>given volumes and concentrations</em>:

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We<u> calculate how many acetic acid moles remain after the reaction</u>:

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We now <u>calculate the molar concentration of acetic acid after the reaction</u>:

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Then we <u>calculate [H⁺]</u>, using the<em> following formula for weak acid solutions</em>:

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Finally we <u>calculate the pH</u>:

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