ning php?id-4945118 Jump to... Sapling Learning Classify each of the decrease, o

Question

ning php?id-4945118 Jump to... Sapling Learning Classify each of the decrease, or stay the same. following events based on whether the solubility of the Indcated gas wil Iincrease, Gas solublity increases Gas solubility decreases Gas solubility does not change The temperature is increased. The partial pressure of an O2 in the blood of a gas is increased. person who is in pressure of a gas over Air in the blood of a diver breathing a solvent is increased. compressed air that quickly surfaces. Previous Give Up & View Souion Check AnsNeE Hint about us careersprivacy policy terms of use contact us help

Explanation / Answer

1) Mass percent = (mass of solute/ mass of solution)*100
a) 3.87 g of KCl in 48.6 g of water
   Mass of solution = 3.87 + 48.6 = 52.47 g
Mass percent = (3.87/52.47)*100
   = 7.37 %
b) 19.1 g of KNO3 in 788 g of water
   Mass of solution = 19.1 + 788 = 807.1 g
Mass percent = (19.1/807.1)*100
   = 2.366 %

2) 16.7 % sugar solution means = 16.7 g of sugar/ 100 g of solution
   Mass of the solution = 49.5 g of sugar * (100 g of solution/ 16.7 g of sugar)
   = 296.4 g of solution

3) MOLARITY of the solutions:

Molarity = Moles of solute/ Volume of solution in liters.

a) 0.65 mol of NaOH in 2.5 L of solution
   Molarity = 0.65/2.5 = 0.26 M

b) 10.3 g of NaCl in 809 mL solution
   moles of NaCl = Mass / Molecular wt
   = 10.3/58.4
   = 0.1764 moles
Volume of the solution = 809mL = 0.809 L
   Molarity = moles of solute/ Volume of solution in Liters
   = 0.1764/0.809
   = 0.0218 M

4) Molarity = moles of solute/ Volume of solution in Liters
   Moles of solute = Molarity* Volume
= 0.1705M *(0.02299 L)
= 0.0039 Moles   

Related Questions

Navigate

• Browse (All)
• Browse N
• Subjects

---

---

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