Chemistry, asked by sanginisucklecha, 3 months ago

Calculate the number of calcium ions which are present in 0.0056 g of calcium oxide.

Answers

Answered by snigdha2132005

0

Answer:

given weight =0.0056g

molecular mass =40+16=56

moles of ca+ ion=0.0056/56=0.0001

1 mole =6.02*10^23

0.0001 mole =0.0001*6.02*10^23

=6.02*10^19

Previous Question

Next Question

Similar questions

Math, 1 month ago

4. The ratio of the bases of two triangles having equal heights is 5:8. If area of the larger triangle is 72 sq units, what is the area of the smaller triangle? (1 Point) A - 115.2 sq units B - 45 sq units C-40 sq units D - 9 sq units...

English, 1 month ago

Will the dishes be washed by Chloe?

English, 1 month ago

help me please someone...

Math, 3 months ago

everyone trusts him passive voice ...

English, 3 months ago

He writes a novel change the sentence ngative...

Hindi, 9 months ago

yadi Mere Pankh Hote in Hindi quotations...

Math, 9 months ago

If x+y = 2; y+z = 3; z+x = 5, then what will be the value of x+y+z ?

Math, 9 months ago

The horizontal component of vector ā is equal to the vertical component of vector b. If 30° is the angle made by ā with its vertical axis and that made by b with its horizontal axis, then calculate the value of b in terms of ā.