Answer:
<h2>8.92 g/cm³</h2>
Explanation:
The density of a substance can be found by using the formula

From the question
mass = 4.75 g
volume = 0.5325 cm³
We have

We have the final answer as
<h3>8.92 g/cm³</h3>
Hope this helps you
Answer:
84.2 grams
Explanation:
you have to multiply 8.42x10^18 to get the answer above
The energy required to separate a mole of an ionic solid into gaseous ions
Explanation:
The given data is as follows.
Current (I) = 3.50 amp, Mass deposited = 100.0 g
Molar mass of Cr = 52 g
It is known that 1 faraday of electricity will deposit 1 mole of chromium. As 1 faraday means 96500 C and 1 mole of Cr means 52 g.
Therefore, 100 g of Cr will be deposited by "z" grams of electricity.

z = 
= 185576.9 C
As we know that, Q = I × t
Hence, putting the given values into the above equation as follows.
Q = I × t
185576.9 C =
t = 53021.9 sec
Thus, we can conclude that 100 g of Cr will be deposited in 53021.9 sec.