Question

1. A mixture of water and silver chloride can be separared by--- 1. Centrifugation 2. Fiteration 3. Sedimentation 4. Sublimation 2. A solution contains 20 gram of sugar mixed with 105 gram of water. What is the concentration of the solution? 3. The solubility of KCl is 40g in 100g of water. What is the w/W percentage of KCl in the solution? 4. A solution contains 40 g of common salt in water. Calculate the mass of water if the mass percentage of the solution is 25%. 5. 0.01% ( by mass ) solution of sodium chloride is present in water, calculate the mass of water in the solution. 6. A solution contains 50 g of common salt in 450 g of water. Calculate the concentration in terms of mass by mass percentage of the solution. 7. Calculate the mass of sodium chloride required to prepare its 25% (mass percent) solution in 200g of water. 8. How much water should be required to 20 g of salt to obtain 20% of salt solution? 9. State True/False: The composition of a sample of steel is: 98% iron, 1.5% carbon and 0.5% other elements. This composition is physical. 1. true 2. false 10. State True/False: The size of particles of a suspension is less than 100 nm. 1. true 2. false

Answer 1

START YOUR MEDICAL FOUNDATION 1 YEAR PREPARATION ... A mixture of water and silver chloride can be separated by ... Sedimentation ... Check My Answer Have a Query?The student C dissolved 50g of NaOH in water to make 100mL of solution. Which one of ... (i) Silver (ii) Methane (iii) Water (iv) Mercury ... (i) Which solution is least soluble at  ...Put everything in water and stir until the salt ( assuming it's NaCl) and ammonium chloride dissolve. Then, filter it through filter paper to ...