AI Mentor

Check Your IQ

Free Expert Demo

Try Test

Courses

Dropper NEET Course Dropper JEE Course Class - 12 NEET Course Class - 12 JEE Course Class - 11 NEET Course Class - 11 JEE Course Class - 10 Foundation NEET Course Class - 10 Foundation JEE Course Class - 10 CBSE Course Class - 9 Foundation NEET Course Class - 9 Foundation JEE Course Class -9 CBSE Course Class - 8 CBSE Course Class - 7 CBSE Course Class - 6 CBSE Course

Offline Centres

A student performed an experiment to determine the ratio of $H_{2} O$ to ${CuSO}_{4}$ in a sample of hydrated copper(II) sulphate by heating it to drive off the water and weighing the solid before and after heating. The formula obtained experimentally was ${CuSO}_{4}$ . $5.5 H_{2} O$ but the accepted formula is ${CuSO}_{4}$ . $5 H_{2} O$ Which error best accounts for the difference in results?

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

The student used a balance that gave weights that were consistently too high by 0.10g

The student weighed out too much sample initially.

The hydrated sample was not heated long enough to drive off all the water.

During heating some of the hydrated copper(II) sulphate was lost.

answer is A.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

During heating, some of the hydrated copper(II) sulphate was lost. When heated, hydrated copper sulphate loses its five crystallizing water molecules, turning from a blue substance to an anhydrous, colourless substance.

Hence the correct option is A

Watch 3-min video & get full concept clarity

courses

No courses found

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Online Course for IIT JEE

Best Online Course for NEET

Best Online Course for CBSE

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Get Expert Academic Guidance – Connect with a Counselor Today!