Type the correct answer in the box. Sodium carbonate (Na2CO3) is sometimes used as a water-softening agent. Suppose that a worker prepares a 0.724 M solution of Na2CO3 and
water. The volume of the solution is 1.421 liters. What is the mass of solute in the solution?
Express your answer to three significant figures.
The mass of dissolved sodium carbonate is
grams.

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Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -

Because calorimetry is used to measure the heat of a reaction, it is a crucial part of thermodynamics. in order to measure the heat of a reaction, the reaction must be isolated so that no heat is lost to the environment. this is achieved by use of a calorimeter, which insulates the reaction to better contain heat.