A compound is 2.00% H by mass, 32.7% S by mass, and 65.3% O by mass. What is its chemical formula? To solve this problem, you will perform the following steps:

Assume 100.0 g of the compound.

Calculate the mass of each element in the sample.

Calculate the number of moles of each element present.

Calculate the mole ratio of elements present.

Write the empirical formula.

answer; natural resources;

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

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