The lab manager has 115 mL of 12.3 mg mL and dilutes it to a final volume of 680

Question

The lab manager has 115 mL of 12.3 mg mL and dilutes it to a final volume of 680 mL What is the concentration of the diluted solution? Two solutions. A and B. are separated by a semipermeable membrane. For each case, predict whether there will be a net flow of water in one direction and. if so. which direction. A with 0.20 M NaCl and solution B with 0.15 M Na_2SO_4 B with 0.10 M K_3 PO_4, and solution B with 0.40 M C_6H_12O_6 Which solution has the lower freezing point? 0.25 mKCl or 0.15m Na_3PO_4 Calculate the number of eq/L and meq/L Ca in a solution that is 1.3 Times 10^-3 M in Ca^2+ Sketch the interaction of a water molecule with a potassium ion Sketch the interaction of a water molecule with a bromide ion. What type of solute dissolves readily in water? What type of solute dissolves readily in gasoline? Blood is essentially an aqueous solution, but it must transport a variety of nonpolar substances (hormones for example). Colloidal proteins, termed albumins, facilitate this transport. Must these albumins be polar or nonpolar? Why? A solution contains 1.5 mg of Fe^3+ per 1.00 kg solution. Calculate the concentration in ppt and ppm. Label 3% (m/V) NaCl solution as isotonic, hypotonic or hypertonic in comparison to 0.9% (m/V) NaCl solution. Label 0.35 M glucose (C_6H_12O_6) as isotonic, hypotonic or hypertonic in comparison to 0.9% (m/V) NaCl solution

Explanation / Answer

Q2.

Apply Dilution law:

C1V1 = C2V2

115 mL *12.3g/mL = 680 mL *C2

C2 = 115 mL *12.3 g/mL /680 mL

C2 = 2.080 g/mL

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