4. Chalk contains 10% calcium, 3% carbon and 12% oxygen. Find the amount of carbon and calcium (in grams) in 2-1 kg of chalk.
Answers
Answered by
1
Answer:
search-icon-header
Search for questions & chapters
search-icon-image
Question
Bookmark
Chalk contains 10% calcium, 3% carbon, 12% oxygen and the remaining sand. Find the amount of carbon and calcium (in grams) in 2
2
1
kg of chalk. Also, find the amount of sand (in kg).
Medium
Solution
verified
Verified by Toppr
In chalk,
Calcium=10%
Carbon=3%
Oxygen=12%
Remaining=100−(10+3+12)=100−25=75%
Sand=75%
Weight of chalk =2
2
1
=
2
5
kg
Amount of carbon =
2
5
×
100
3
=
40
3
kg
=
40
3
×1000=75grams
Amount of calcium =
2
5
×
100
10
=
4
1
kg
=250grams
and amount of sand =
2
5
×
100
75
=
8
15
kg
=
8
15
=1.875kg
Similar questions