CHEMISTRY SS2 STOICHOMETRY OF REACTIONS,MASS-VOLUME RELATIONSHIP IN REACTIONS QUIZ
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How much sodium hydroxide is required to make 250cm3 of a 0.1M solution ?
[Na = 23, O=16, H=1]CorrectIncorrect
What is the concentration of a solution containing 2g of NaOH in 100cm3 of solution?
[Na=23, O=16, H=1]CorrectIncorrect
What weight of NaCl is needed to make 2.0dm3 of a 1.5M solution?
[Na = 23, Cl = 35.5]CorrectIncorrect
What mass of K2CrO4 is required to prepare 250cm3 of 0.020moldm-3 solution ?
[K2CrO4 = 194.2gmol-1]CorrectIncorrect
What volume of 2M HCl will be required to react completely with 6.5g of zinc
Zn(s) + 2HCl(aq)→ZnCl2(aq) + H2(g)
[Zn = 65, H= 1, Cl=35.5]CorrectIncorrect
If 100cm3of CO is burnt in 100cm3 of O2
(all volume measured at the same temperature and pressure),
what volume of O2 will remain at the end of the reaction ?
[2CO(g) + O2(g)→ 2CO2(g)CorrectIncorrect
Consider the reaction,
2CO(g) + O2(g)→ 2CO(g)
Calculate the volume of excess oxygen gas when 150cm3 of CO is burnt in 80cm3 of oxygenCorrectIncorrect
20cm3 of methane was burnt in 20cm3 of oxygen.
Calculate the volume of unreacted gas after cooling to the initial temperature and pressure
CH4(g) +2O2(g)→ CO2(g) + 2H2O(g)CorrectIncorrect
Calculate the mass of Mg which will react completely with 200cm3 of 0.01M hydrochloric acid
Mg(s) + 2HCl(aq)→ MgCl2(aq) + H2(g)
[Mg = 24, H = 1, Cl= 35.5]CorrectIncorrect
What volume of 1.5M tetraoxosulphate (VI) acid will be required to react completely with 2g of calcium
Ca(s)+H2SO4(aq)→ CaSO4(s) + H2(g)
[Ca = 40, H= 1, S=32, O=16]CorrectIncorrect