Question

zinc sulphate contains 22.65 % of zinc and 43.9% of water of crystallization if the law of constant properties is true then the weight of zinc required to produce 20 gram of crystals will be

Answer 1

4.53 Grams

Given:

Percentage of ZnSO4 = 22.65 %

Percentage of Zn = 43.9 %

According to this:

100 grams of Crystal has 22.65 Zn

We need to Find:

20 grams of Crystal contains ?

Formula used to calculate this problem:

= Weight to find x Weight of Crystal / Total Weight

Substituting values known to us in this formula we get:

= 20 x 22.65 / 100

= 4.53 Grams

Therefore, the weight of zinc required to produce 20 grams of crystals will be 4.53 Grams.

• Zinc is an element that is having the property of healing itself.

• The temperature at which Zinc melts 787 Degrees Fahrenheit.

• The color that the zinc metal has is blue silvery.

Answer 2

$\large{\bf{\red{\underline{\underline{Question:}}}}}$

zinc sulphate contains 22.65 % of zinc and 43.9% of water of crystallization if the law of constant properties is true then the weight of zinc required to produce 20 gram of crystals will be

$\large{\bf{\green{\underline{\underline{Answer:}}}}}$

Given,

• Percentage of zinc sulphate = 22.65%

• Percentage of zinc = 43.9%

To Find:-

20% gram of crystal will be

Formula used :-

Weight to find × weight of crystal /Total weight.

Calculations:-

20×22.65/100

=4.53grams.

The weight of zinc required to produce 20 gram of crystals will be is 4.53 grams.

$\large{\bf{\red{\underline{\underline{Explore\:More:}}}}}$

• Zinc is a chemical element with the symbol Zn.

• Zinc is found in cells throughout the body. It helps the immune system fight off invading bacteria and viruses.

• The atomic number of zinc is 30.

• Zinc is the element present in 12th group.

zinc include

• batteries
• brass
• American pennies.

• Zinc chloride is used as a fire retardant, a preservative for wood and deodorant