JEE Mains · Chemistry · STD 11 - 1. Some basic concept of chemistry
\(250\,g\) solution of \(D-glucose\) in water contains \(10.8 \%\) of carbon by weight. The molality of the solution is nearest to(Given: Atomic Weights are \(H , 1\,u ; C , 12\,u ; O , 16\,u\))
- A \(1.03\)
- B \(2.06\)
- C \(3.09\)
- D \(5.40\)
Answer & Solution
Correct Answer
(B) \(2.06\)
Step-by-step Solution
Detailed explanation
\(C _{6} H _{12} O _{6} \rightarrow\) Glucose We know: \(\frac{\text { mass of } C }{\text { mass of glucose }}=\frac{72}{180}\) Given: \(\% C =10.8=\frac{\text { mass of } C }{\text { mass of solution }} \times 100\) \(\frac{10.8 \times 250}{100}=\) mass of \(C \Rightarrow\)…
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