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nignag [31]
3 years ago
6

What is the δg for the following reaction at 25°c? so3(g) h2o(l) → h2so4(l) given: so3(g):δg= –368 kjper mole h2o(l):δg= –237 kj

per mole h2so4(l):δg= –689.9 kj per mole
Chemistry
1 answer:
jeka943 years ago
3 0
We are given with the equation that produces sulfuric acid from the reaction of sulfur trioxide gas and water. This is expressed in the balanced equation: SO3+ H2O= H2SO4. The enthalpy of the reaction in an aqueous solution can be determined by taking the difference between the summation of enthalpies of the products multiplied to their respective stoichiometric coefficient and the summation of enthalpies of the reactants multiplied to their respective  stoichiometric coefficient. Answer is -689.9-(-368-237) equal to -84.9 kJ per mole.
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Igoryamba

Answer:

            4.36 g of Carbon

Solution:

Step 1: Calculate the %age of Carbon in given Solid as;

                        Mass of Carbon  =  35.8 g

                        Mass of Hydrogen  =  3.72

                        Total Mass  =  35.8 g + 3.72  =  39.52 g

                        %age of Carbon  =  (35.8 g ÷ 39.52 g) × 100

                        %age of carbon  =  90.58 %

Step 2: Calculate grams of Carbon in 4.82 g of given solid as;

                        Mass of Carbon  =  4.82 g × (90.58 ÷ 100)

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