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

QUICK Why does the Progressive era represent such a fundamental shift in American history? Essay question
A school nurse is assessing children in the third grade for pediculosis capitis. what assessments should be made?
which equation can be solved to find x, the measure of BD in the diagram below?
HEEELLLLPPPPPP PLEASE I GIVE BRAINLIST
how do economic factors impact financial decision
-2x+6y=12 in graph ???
What provides storage for water, nutrients, and poisons in a cell?
A process in which a cell surrounds and removals materials from out of the cell.
Why was the united states unjustufied in going to war with mexico?
When children role play and pretend to be adults they are engaging in the form of?