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anygoal [31]
3 years ago
9

Calculate the concentration of hydrochloric acid if 225.0 mL of this acid is neutralized by 120.0 mL of 2.0m sodium hydroxide A.

1.0m B. 1.07m C. 1.066m D. 1.1m
Chemistry
1 answer:
timurjin [86]3 years ago
5 0
M1V1 = M2V2
225M1 = (2)(120)
225M1 = 240
M1 = 240/225 = 1.066 M C
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Answer:

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Explanation:

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Using the equation for photoelectric effect as:

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\frac {h\times c}{\lambda}=\psi _0+\frac {1}{2}\times m\times v^2

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\frac{6.626\times 10^{-34}\times 3\times 10^8}{260\times 10^{-9}}=3.68506\times 10^{-19}+\frac{1}{2}\times 9.11\times 10^{-31}\times v^2

3.68506\times \:10^{-19}+\frac{1}{2}\times \:9.11\times \:10^{-31}v^2=\frac{6.626\times \:10^{-34}\times \:3\times \:10^8}{260\times \:10^{-9}}

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\frac{1}{2}\times 9.11\times 10^{-31}\times v^2=3.96032462\times 10^{-19}

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3 years ago
The atomic masses of any two elements contain the same number of
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What best defines an extensive property of a substance? (4 points) A property that is observable A property that is measurable A
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Consider the reaction. 2 Al ( s ) + Fe 2 O 3 ( s ) heat −−→ Al 2 O 3 ( s ) + 2 Fe ( l ) If 17.3 kg Al reacts with an excess of F
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Answer:

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