F.Sc Chemistry
What is the empirical formula of the compound containing 50% sulphur and 50% oxygen by mass?
From the given sets of compounds SO2 has 32 gram of sulphur and 32 gram of O2 to give 64 gram of SO2. Hence the compound contains 50% sulphur and 50% oxygen by mass. Read More →
What are the number of moles of CO2 which contains 16 g of oxygen?
One mole of CO2 has mass of 44 g and 32 g of O2. So 16 g of O2 have 22 g of CO2 or 0.5 moles of it. Read More →
Which of the following substances will have greater number of negatively charged ions dispersed in aqueous solution, when 100% dissociation for one molar substance is there?
AlCl3 is such an ionic compound that one molecule of it gives four ions. Hence one mole of AlCl3 after complete dissociation in water generates four moles of ions. Read More →
What are the number of molecules in one dm3 of water?
One dm3 of water is very close to one kilogram, because the density of water is very close to unity. Number of water molecules = 1000 / 18 * 6.022 * 10^23 = 55.5 * 6.022 * 10^23 Read More →
What have the 18.02 g of H2O sample?
18.02 g of water is one mole of water and has Avogadro’s number of molecules i.e 6.022×1023 Read More →
Which of the following is a colligative property?
The lowering of vapour pressure of a solution is a colligative property which depends upon the number of solute particles. Read More →
Whether the negative value of pH is possible?
When the solution is highly acidic and hydrogen ion is greater than unity, then the negative value of pH is possible. Read More →
What happens to pH of solution when crystals of sodium acetate is added to a dilute solution of acetic acid?
The solution of acetic acid has low pH, due to its acidic nature. When sodium acetate is added to that, then due to its basic nature, the pH of solution increases. Read More →
What is the pH of the milk?
The pH of the milk is 6.5. So it is little bit acidic solution. Read More →
