WORK THIS OUT 3.1 PAGE 32 CALCULATION [AVAGADROS CONSTANT: 6.02 X 10^23 mol-1] 1. Calculate the number of atoms in (a)1 mole of aluminium (b) 0.5 moles of iodine molecules, I2 (c) 3.2 moles of helium atoms (d) 0.4 moles of ozone gas, O3 2. A sample contains 6.02 X 10^25 molecules of water. How many moles of water are there in the sample? 3. Find the number of mole of hydrogen gas, H2 containing (a) 3.01 X 1024 hydrogen molecules, H2 (b) 6.02 X 1023 hydrogen atoms 4. A beaker contains 0.1 moles of zinc chloride, ZnCl2. (a) Calculate the number of moles of chloride ions in the beaker. (b) Find out the total number of ions in the beaker. 5. A container contains1.806 X1023 oxygen molecules, O2. A sample of 0.5 mol of oxygen gas, O2 is added to the container. How many molecules are there altogether in the container?
Keywords: SPM, Chemistry, Avogadro, number, of, moles, KBSM, Textbook
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