Class 10 batch 2022, at Borduwa
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Class 10 batch 2021 on Teachers' Day 2021
Former students on Teachers' Day 2021
Chemistry Class 9
Q1. 10g of NaCl is present in 100 ml of solution. Find weight by weight %, if density of the solution is 1.2g/ml.
Q2. A sugar solution is 10% (weight/volume). Find (weight/weight %) if density of the solution is 1.25g/ml.
Q3. A solution of HNO3 (nitric acid) is 5% (weight/weight). Find the mass of HNO3 present in 100ml of solution. (Density of solution is 1.4g/ml).
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