Chemistry: How many grams of hydroxide pellets, NaOh are required to prepare 50.0ml of a 0.150 M solution ? A.0.300g B.3.00g C.2.00g D.200.g E. 0.025 M

How many grams of hydroxide pellets, NaOh are

naomicervero

01.05.2021

The correct answer is E10.

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Pookaapoo8832

01.05.2021

(O.0500L) x (0.150mo/L)x(39.997 15 g NaOh/mol)=0.300 g NaOh

ANSWER A

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mostman077

19.05.2020

Number of charge = 5018 C

Further explanation

Given

1000 C of charge for x grams of copper

Required

Number of charge

Solution

Faraday's Law :

$\tt W=\dfrac{e.i.t}{96500}\\\\W=\dfrac{e.Q}{96500}$

For 1000 C, W = x grams

$\tt x=\dfrac{1000.e}{96500}=0.0104e$

For 5x grams :

$\tt 5x=\dfrac{e.Q}{96500}\\\\5\times 0.0104e=\dfrac{e.Q}{96500}\\\\Q=\dfrac{96500\times 5\times 0.0104e}{e}=5018~C$

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