मराठी

During an experiment the students were asked to prepare a 10% (Mass/Mass) solution of sugar in water. Ramesh dissolved 10g of sugar in 100g of water while Sarika prepared it by dissolving 10g of - Science

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प्रश्न

During an experiment, the students were asked to prepare a 10% (Mass/Mass) solution of sugar in water. Ramesh dissolved 10g of sugar in 100g of water while Sarika prepared it by dissolving 10g of sugar in water to make 100g of the solution.

(a) Are the two solutions of the same concentration

(b) Compare the mass % of the two solutions.

थोडक्यात उत्तर
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उत्तर

(a) No, Sarika has a higher mass percentage.

(b) Solution made by Ramesh

Mass % = `10/(10 + 100) xx 100`

= `10/110 xx 100`

= 9.09%

Solution made by Sarika -

Mass % = `10/100 xx 100`

= 10%

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पाठ 2: Is Matter Around Us Pure - Long Answer Questions [पृष्ठ १८]

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एनसीईआरटी एक्झांप्लर Science [English] Class 9
पाठ 2 Is Matter Around Us Pure
Long Answer Questions | Q 39. | पृष्ठ १८

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