What weight of SO₂ can be made by burning sulphur in 5.0 moles of oxygen

Question: What weight of SO₂ can be made by burning sulphur in 5.0 moles of oxygen

(a) 640 grams

(b) 160 grams

(c) 80 grams

(d) 320 grams

Correct Answer: (d) 320 grams

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1. On electrical decomposition of 150 ml dry and pure O₂, 10% of O₂ gets changed to O, then the volume of gaseous mixture after reaction and volume of remaining gas left after passing in turpentine oil will be
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8. A hydrocarbon contains 86% carbon, 488ml of the hydrocarbon weight 1.68 g at STP. Then the hydrocarbon is an
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15. How many ml of 1 (M) H₂SO₄ is required to neutralise 10 ml of 1 (M) NaOH solution [MP PET 1998; MNR 1982; MP PMT 1987]
16. In the preceeding question, the amount of Na₂CO₃ present in the solution is [CPMT 1992]
17. A solution containing Na₂CO₃ and NaOH requires 300 ml of 0.1 N HCl using phenolpthalein as an indicator. Methyl orange is then added to the above titrated solution when a further 25 ml of 0.2 N HCl is required. The amount of NaOH present in solution is ( NaOH=40, Na₂CO₃=106)
18. 30 ml of acid solution is neutralized by 15 ml of a 0.2 N base. The strength of acid solution is [CPMT 1986]