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

What does it mean if something is pickled???
Find the geometric mean of 6/5 and 120. Show in simplest radical form.
caitlin has finished her schooling and training
Why did the court decide that the second bank of the united states was immune from taxation?
With _____ outsourcing, an organization chooses an outsourcing company in the same country.
Identify the antecedent of the pronoun in bold. Raja went to school without his lunch money. A. money B. school C. Raja D. lunch
La batalla del alamo pasó en __________.
An atom that loses a valence electron becomes negatively charged. True False
1. The equation below shows the process of photosynthesis. Carbon dioxide + Water → ? + Oxygen What forms of energy are entering and exiting this process? A. C
Dee is driving home from a conference. The expression 705 – 60h gives the number of miles Dee is from home after driving h hours. Which best represents the mean