Question

To study a marine organism, a biologist prepares a 1.00-kg sample to simulate the ion concentrations in seawater. She mixes 26.5 g of NaCl, 2.40 g of MgCl₂, 3.35 g of MgSO₄, 1.20 g of CaCl₂, 1.05 g of KCl, 0.315 g of NaHCO₃, and 0.098 g of NaBr in distilled water.
(a) If the density of the solution is 1.025 g/cm³, what is the molarity of each ion?

Answer 1

The total molarity of alkali metal ions = 0.465 M + 0.014 M  = 0.479 M

The total molarity of alkaline earth metal ions = 0.0055 M + 0.042 M = 0.0475 M

The total molarity of anions = 0.511 M + 0.029 M + 0.0039 M + 0.00097 M = 0.545 M

What is molarity?

• The amount of a substance in a specific volume of solution is known as its molarity (M).
• The number of moles of a solute per liter of a solution is known as molarity.
• The molar concentration of a solution is another name for molarity.
• A chemical species' concentration in a solution, specifically the amount of a solute per unit volume of solution, is measured by its molar concentration.
• The number of moles per liter, denoted by the unit symbol mol/L or mol/dm3 in SI units, is the most often used unit denoting molarity in chemistry.

What is the molarity unit in the SI?

• The number of moles per liter, denoted by the unit sign mol/L or moldm3 in SI units, is the most often used unit for molarity in chemistry.

Learn more about molarity here:

brainly.com/question/8732513

#SPJ4