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Pachacha [2.7K]

2 years ago

11

i have a crossword thing that i got from school and one of the clues is: If there are two equal and opposite forces on something

, we say the forces are______ .Its 8 letters and the 4th letter is A. What do you think it is im so confused?

2 answers:

Nezavi [6.7K]2 years ago

8 0

Well the forces are balanced. Perhaps the 8th letter is not actually "A" but a "D"?

cluponka [151]2 years ago

6 0

I would assume the answer is called attractive

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Following are the answer to this question:

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$=4 \times (2 \times 0.0125) \ mol H^{+}\\\\= 0.025 mol H^{+}$

create the ICE table:

$NH_3 \ \ \ \ \ \ \ \ + H^{+} \ \ \ \ \ \ \longrightarrow NH_4^{+}$

I (m) 0.033(m) 0.025 0.04166

C -0.025 -0.025 + 0.025

E 8.3\times 10^{-3} 0 0.0667

now calculating pH:

when ph= 8.83:

$P^{H}= p^{kb}|+ \log\frac{[NH_4^{+}]}{[NH_3]}\\\\8.83=p^{kb}+\log\frac{0.0667}{8.3 \times 10^{-3}}\\\\p^{kb}=8.83-0.9069\\\\ \ \ \ =7.7231 \\\\\ The P^{kb} \ for \ NH_3 \ is =7.7231\\\\\ The P^{kb} \ for N^{+}H_4=14-7.7231\\\\\ \ \ \ \ \ =6.2769$

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