What is the Mass of S02Cl2 in a Sample?

  • Chemistry
  • Thread starter rebedotcca
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In summary, two experiments were discussed. The first experiment involved the hydrolysis of S02Cl2 in water, which produced 150 cm3 of solution that required 15 cm3 of 0.2 mol/dm3 sodium hydroxide for neutralization. The mass of S02Cl2 in the sample can be calculated using this data. The second experiment involved the reaction between iodic(V) acid and sulfur dioxide, which produced sulfuric acid and iodine. Using the empirical data, the equation for this reaction can be constructed by determining the mole ratio of the reactants. Further guidance is given on how to approach this question.
  • #1
rebedotcca
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1) Sulphur dichloride oxide, S02Cl2 is hydrolysed (decomposed) by water to sulphuric acid and hydrochloric acid. A sample of S02Cl2 was dissolved in sufficient water to produce 150 cm3 , and of the 25cm3 of the resultant solution required 15cm3 of 0.2 mol/dm3 sodium hydroxide for neutralisation. Calculate the mass of S02Cl2 in the sample. 2) When iodic (V) acid, HIO3 reacts with an aq solution of SO2, H2SO4 and iodine are produced. in an experiment, 0.1g of iodic (v) acid was reacted with excess sulphur dioxide and iodine formed were removed by heating. The sulphuric acid produced requred 28.4cm3 of 0.1mol/dm3 NaOH solution. Determine the equation for the reaction between iodic(V) acid and sulphur dioxide.
 
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  • #2
Please show your attempt or tell us which parts of the question you are having problems with.
 
  • #3
Hey fightfish. For question 1 i had solved it already. But now I'm having problem with question 2. I do not know how to start this question. Do you mind teaching me? Thanks!
 
  • #4
Basically the question is asking you to construct the equation of the reaction between the iodic(V) acid and sulfur dioxide based on the empirical (experimental) data.
From the data in the question, we can obtain:
i) The no. of moles of iodic(V) acid reacted
ii) The no. of moles of sulfuric acid produced
Hint: How is the no. of moles of sulfur dioxide reacted related to the no. of moles of sulfuric acid produced?
From there, we can obtain the mole ratio of the reactants, thus enabling us the write the equation.
 
  • #5
Thanks! (;
 

1. What is a mole?

A mole is a unit of measurement used in chemistry to represent a specific amount of a substance. One mole is equal to 6.022 x 10^23 particles, which is known as Avogadro's number.

2. How is a mole different from a mass?

A mole is a unit of measurement for the amount of a substance, while mass is a measure of the quantity of matter in an object. One mole of a substance will have a different mass depending on the substance's molar mass.

3. How do you calculate the number of moles in a substance?

To calculate the number of moles in a substance, you divide the given mass of the substance by its molar mass. This will give you the number of moles of that substance.

4. What is the significance of moles in chemistry?

Moles are important in chemistry because they allow us to accurately measure and compare amounts of different substances. They also help us determine the ratios of elements in chemical reactions and calculate concentrations in solutions.

5. Can you have a fraction of a mole?

Yes, it is possible to have a fraction of a mole. This indicates a smaller amount of a substance and is commonly seen in chemical reactions where the reactants are not present in exact stoichiometric ratios.

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