How many grams of nickel metal are plated out when a constant current of 15.0 Ais passed through aqueous NICl2 for 80.0 minutes?

Physics

1 answer:

Alika [10]3 years ago

3 0

Answer:

21.89 g

Explanation:

i = 15 A

time = 80 minutes = 80 x 60 = 4800 second

Electro chemical equivalent of nickel, Z = 0.000304 gram per ampere second

Use the Faraday's law of electrolysis

m = z i t

where, m is the mass deposited, i be the current, z be the electro chemical equivalent and t be the time taken

m = 0.000304 x 15 x 4800

m = 21.89 g

Thus, the mass f nickel deposited is 21.89 g.

You might be interested in

How bad is the heavy traffic? You can walkwalk 1212 miles in the same time that it takes to travel 3232 miles by car. If the c

zysi [14]

Answer:

Speed by walking is 33 miles per hour

And speed of by car is 88 miles per hour

Explanation:

We have given that it takes same time to walk 1212 miles as 3232 miles by car

Now let the speed by walk is x

As speed by car is 55 miles per hour faster than by walk = x+55

As time is same and we know that time is given as $time=\frac{distance}{speed}$

So $\frac{1212}{x}=\frac{3232}{x+55}$

$1212(x+55)=3232x$

$1212x+66660=3232x$

x = 33 miles per hour

So speed by walking is 33 miles per hour

And so speed of car = 33+55 =88 miles per hour

3 0

3 years ago

your friend want to know the amont of salt added to her favorite fast food french fries what would you recommend that she do to

Alexeev081 [22]

That nutritional information is usually not posted up on the wall,
but by federal law, it's available on request, to any customer, at
any fast-food place.

All she has to do is ask to see the manager, and then ask the
manager for the nutritional information booklet.

She'll get a nice printed booklet that tells the salt content in the
fries, AND the amount of many other substances in ALL the items
sold at that place.

It's the law. Don't be bashful.

5 0

3 years ago

How is electromagnetic waves useful for cooking food

Makovka662 [10]

Hopefully this will help you.