A student performs an experiment to find the percentage of water in a hydrate. He determines that the hydrate contains 22% water
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Answer : The mass in grams of calcium sulfate is 0.16 grams.
Explanation :
Molarity : It is defined as the number of moles of solute present in one litre of solution.
Formula used :
Solute is,
Given:
Molarity of = 0.0025 mol/L
Molar mass of = 136 g/mole
Volume of solution = 485 mL
Now put all the given values in the above formula, we get:
Thus, the mass in grams of calcium sulfate is 0.16 grams.
The reaction that has been, following the law of conservation of mass has been .
The law of conservation has been given in the chemical reaction that there has been no loss or gain of the mass and energy.
The law of conservation has been evident when there has been an equal number of atoms of each element on the product and the reactant side.
<h3 /><h3>Conservation of mass in Cellular respiration</h3>
The following reactions have been identified as:
Carbon atoms
Reactant = 3
Product = 18
Oxygen atoms
Reactant = 9
Product = 18
Hydrogen atoms
Reactant = 6
Product = 36
The number of atoms is not equal on the product and reactant side, thus not follows the law of conservation of mass.
Carbon atoms
Reactant = 6
Product = 6
Oxygen atoms
Reactant = 24
Product = 18
Hydrogen atoms
Reactant = 12
Product = 12
The number of atoms is not equal on the product and reactant side, thus not follows the law of conservation of mass.
Carbon atoms
Reactant = 6
Product = 6
Oxygen atoms
Reactant = 18
Product = 18
Hydrogen atoms
Reactant = 12
Product = 12
The number of atoms is equal on the product and reactant side, thus follows the law of conservation of mass.
Carbon atoms
Reactant = 6
Product = 0
Oxygen atoms
Reactant = 12
Product = 12
Hydrogen atoms
Reactant = 24
Product = 0
The number of atoms is not equal on the product and reactant side, thus not follows the law of conservation of mass.
Thus, the reaction that has been following the law of conservation of mass has been .
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