When two substances from a solution, the substances present in the lesser amount

Question

When two substances from a solution, the substances present in the lesser amount is called the, and the substance present in the larger amount is the. What is the molarity of a solution prepared with 25 g Na Cl in 650 mL solution? If you were in the laboratory, how many mL of a 12.00 M NaOH stock solution would you need to prepare 780.0 mL of 0.200 M Na OH? How many L of a 1.5 M glucose solution will contain 3.0 moles? What is the concentration of a solution formed by diluting 125 ml of 12.0 M HCI solution to 850 ml?

Explanation / Answer

1.

when two substances form a solution, the substance in the lesser amount is called the solute and the substance is the larger amount is the solvent

2.

mass of NaCl = 25g

molar mass of NaCl = 58.5 g/mol

number of moles of NaCl = mass/molar mass

= 25/58.5

=0.427 mol

volume =650 mL = 0.650 L

M = number of moles/volume

= 0.427/0.650

=0.66 M

Answer: 0.66 M

I am allowed to answer only 1 question at a time

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.