Chapter 1, Problem 13RQ

Using the formula V₁D₁ = V₂D2, what volume of a 1/100 (10-2) dilution would you need to produce 100 mL of a 1/10000 (10-4) dilution? (Note: provide your answer in decimal format to three decimal places.)

One kilometer is the same distance as 0.621 miles. a. Write two conversion factors that may be derived from this information. b. What is the distance in miles of a 5.0 km run?

MAP= CO x TPR / 80  I don't understand the value of TPR how do I get this number?

What can Kd values be used for?

The Ksp of lanthanum fluoride, LaF3, is 2.00 × 10-19. Calculate the molar solubility, x, of this compound. -5 1.27 x10 x = Incorrect Answer M

Perform the calculations and determine the absolute and percent relative uncertainty. Express each answer with the correct number of significant figures. To avoid rounding errors, do not round your answers until the very end of your calculations. 7.8 (±0.3) – 2.03 (±0.02) = absolute uncertainty: percent relative uncertainty: 8.24 (+0.04) × 0.012 (+0.001) = absolute uncertainty: percent relative uncertainty: G Search or type URL % & ) 6 8 9 P R F H K M

Calculez: 0.02cm+3.72mm+0.024m+230µm. Give the answer in mm (do not round off your answer, write all the figures in the result).

A 0.0284 M aqueous solution of lactic acid, HC3H5O3, a substance that accumulates in the blood and muscles during physical activity, is found to be 6.7% ionized. Determine the value of Ka for lactic acid.

What value of [S], as a fraction of KM, is required to obtain 80% of Vmax? (Hint: use the MM equation, and algebra.) Express your answer as the fraction/multiple of KM needed, for example, if your answer is 2.75 times KM, then enter "2.75" or if your answer is 1/2 times KM, then enter "1/2" or "5" Don't include "x" or "times" just the number.