agboolasunday agboolasunday
  • 03-11-2019
  • Chemistry
contestada

pls solve dis question calculate the percentage by mass of all the elements in calcium hydroxide​

Respuesta :

jasondcastellan
jasondcastellan jasondcastellan
  • 03-11-2019

Answer:

Given that the chemical formula for calcium hydroxide= (Ca(OH)2)

Using the above formula, we calculate the formula mass of this compound.  

For calcium hydroxide, the formula mass can be calculated as,  

Formulamass=onecalcium

1CA (a/mu = 40) = 40

20 (a/mu = 16) =2×16=32

2H (a/mu = 1) = 2 x 1= 2

%Ca=  40/ 72   ×100

%Ca= 54%

plz brainliest :)

Answer Link

Otras preguntas

convert 84 inches to yards
ANSWER ASAP!!!!! Audrey has a box that contains one caramel chocolate (C), one milk chocolate (M), one dark chocolate (D), and one white chocolate (W). She pick
A triangle has sides that are 2 inches, 2 inches, and 3 inches. Can you form more than one triangle with the given side lengths? Explain​
Janet is 6 years younger than Safiya.How old is each girl if the suk of their ages is 26
How does a selectively permeable membrane affect diffusion? - All molecules move from a lower concentration to a higher concentration. - Only some molecules mov
Graph system and solution 3x+2y=14 y=1/2x+3 A.) (2,4) B.)(4.7,0) C.) (1.1,5.3)
Help meeeee Round to the nearest tenth if nessasary
What were kamikazes attacks?
The length of a rectangle is 12 in. and the perimeter is 56 in. Find the width of the rectangle.
The transformation (x,y) (x+4,y-3 is performed on the segment AB.The imgae is the line segment A’B’ where point A’=(3,-3) and point B’ =(5,-3).What are the coor