Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
112 views
in Chemistry by (74.4k points)
closed by
`A` mixture of `CuSO_(4).5H_(2)O` and `MgSO_(4).7H_(2)O` was heated until all the water was driven off If `5.0g` if mixture gave `3g` of anhydrous salts, what was the percentage by mass of `CuSO_(4).5H_(2)O` in the original mixture :

1 Answer

0 votes
by (74.8k points)
selected by
 
Best answer
Correct Answer - `74.4`
Let the mixture contain `x g CuSO_(4). 5H_(2)O`.
`implies (x)/(249)xx159+(5-x)/(246)xx120=3impliesx=3.72`
implies Mass percentage of `CuSO_(4).5H_(2)O = 74.4`

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...