Respuesta :
The mass of h2o produced in the reaction is 0.378 g.
The concentration of a substance is the quantity of solute found in a given amount of solution. Concentrations are normally expressed in terms of molarity, defined because of the variety of moles of solute in 1 L of answer.
Calculation:-
Number of moles = molarity × volume
moles of H₃PO₄ = 0.2 × 0.035
= 0.007 moles
H₃PO₄ + 3 NaOH -----------> Na₃PO₄ + 3 H₂O
1 mole of H₃PO₄ = 3 mole of H₂O
0.007 moles of H₃PO₄ = 3 × 0.007 mole of H₂O
= 0.021 moles of water
mass of water = 0.021 × 18
= 0.378 g
The Concentration of an answer is a measure of the quantity of solute that has been dissolved in a given amount of solvent or answer. A concentrated answer is one that has a rather huge quantity of dissolved solute.
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