<img alt="" class="alignnone size-full wp-image-237449" height="292" src="https://data.ulearngo.com/assets/91281a11-7237-4b42-8fc1-d3a89c7acbf4" width="300"/>In the solubility curve above, water at 98oC is saturated with KCL and KCIO3 What is the percentage of KCL impurity in the crystals formed when the solution is cooled to 30 oC?

The relationship between the velocity (U) of gas molecules and their relative molecular mass (M) is shown by the equation

How much of magnesium is required to react with 260cm3 of 0.5 M HCl? [Mg = 24]

The number of atoms of chlorine present in 5.85g of NaCl is [Avogaro's Number = 6.02 x 1023]

10cm3 of hydrogen fluoride gas react with 5cm3 of dinitrogen difluoride gas (N2F2) to form 103 of a single gas. Which of the following is the most likely equation of the reaction?

When 50cm3 of a saturated solution of sugar (molar mass 342.0g) at 40oC was evaporated to dryness, 34.2g of dry solid was obtained. The solubility of sugar at 40oC is

Which of the following groups of physical properties increases from left to right of the periodic table? i. Ionization energy ii. Atomic radius iii. Electronegativity iv. Electro affinity

An element with atomic number twelve is likely to be

1986 JAMB UTME Chemistry Past Questions

In the solubility curve above, water at 98oC is saturated with KCL and KCIO3 What is the percentage of KCL impurity in the crystals formed when the solution is cooled to 30 oC?