Chemistry questions
29404 published questions with worked solutions.
- The number of moles of KCl in 1000 mL of 3 M solution is _______
- The number of moles of SO_2Cl_2 in 13.5 g is _______
- The mole fraction of nitrogen, in a mixture of 7 g of N_2 and 16 g of O_2 is _______
- The solutions A and B are 0.1 M and 0.2 M in a substance. If 100 mL of A is mixed with 25 mL of B and there is no change in...
- An aqueous solution of glucose is 10% W/W in strength. The volume in which 1 g mole of it is dissolved will be _______
- What volume of 0.8 M solution contains 0.1 mol of the solute?
- 20 mL of HCl solution requires 18.85 mL of 0.01 M NaOH solution for complete neutralization. The molarity of HCl solution is...
- A 500 g toothpaste sample has 0.2 g fluoride. What is the concentration of F^- in ppm?
- How many moles are represented by 24.5 g of H_2SO_4 ?
- If 250 mL of 0.25 M NaCl solution is diluted with water to a volume of 500 mL, the new concentration of the solution is _______
- A sugar syrup of weight 214.2 g contains 34.2 g of sugar (Molar Mass = 342 g ,mol^ -1 ). The molal concentration of the solution...
- When the cap of a carbonated soft drink average bottle is removed, effervescence is produced due to _______
- Which is CORRECT about Henry's law?
- Gases such as CO_2 and NH_3 are more soluble in water than N_2 , because _______
- What is the Henry's Law constant of dissolved O_2 at 10 ^ at 1 atmospheric pressure, if partial pressure of oxygen is 0.24 atm?...
- The statement "If 0.003 moles of a gas are dissolved in 900 g of water under a pressure of 1 atmosphere, 0.006 moles will be...
- The colligative properties of a solution depends on _______
- Which is NOT a colligative property?
- Colligative properties are used for the determination of _______
- The vapour pressure of a solution of 5 g of non-electrolyte in 100 g of water at a particular temperature is 2985 N/m^2 . The...