Chromium metal can be plated out from an acidic solution containing CrO3 according to the following reaction- CrO3 - 6H- - 6e- Cr - 3H2OCalculate the mass of chromium plated out by 24000 coulomb- How long will it take to plate out 1-5 g of chromium using 12-5 ampere current-

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Faraday's First Law

Chromium meta...

Question

Chromium metal can be plated out from an acidic solution containing $C r O_{3}$ according to the following reaction:
$C r O_{3} + 6 H^{+} + 6 e^{-} \to C r + 3 H_{2} O$
Calculate the mass of chromium plated out by $24000$ coulomb. How long will it take to plate out $1.5 g$ of chromium using $12.5$ ampere current?

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C r O_{3}

C r O_{3} (a q) + 6 H^{+} + 6 e^{-} \to C r (s) + 3 H_{2} O

C r O_{3}

C r O_{3} (a q) + 6 H^{+} + 6 e^{-} \to C r (s) + 3 H_{2} O

24000

C r O_{3}

C r O_{3} (a q) + 6 H^{+} (a q) + 6 e^{-} \to C r (s) + 3 H_{2} O

24000

= 52

C r O_{3}

C r O_{3} + 6 H^{+} + 6 e^{-} \to C r + 3 H_{2} O

24000 c o u l o m b

1.5 g

12.5 A

40 %

C r

52 g m o l^{- 1}

Chromium metal can be plated out from an acidic solution contaning $C r O_{3}$ according to the following equiation:

$C r O_{3} (a q) + 6 H^{\oplus} (a q) + 6 e^{-} \to C r (s) + 3 H_{2} O$

The no. of grams of chromium that will be plated out by 2400 C current is: (write your answer to nearest integer)

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