irsha

Most popular questions and responses by irsha
  1. science

    during the 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 dissolved 10g of sugar in water 100g of the solution a) Are the two solution

    asked on September 6, 2011
  2. science

    the teacher instructed three students A,B,and C respectively to prepare a 50% (mass by volume) solution of sodium hydroxide (NaOH). 'A' dissolved 50 g of NaOH in 100 ml of water B dissolved 50g of NaOH in 100g of water while C dissolved 50g of NaOH in

    asked on September 6, 2011
  3. science

    calculate the mass of sodium sulphate required to prepare its 20%(mass percent) solution in 100 g of water

    asked on September 6, 2011