Which of the serum and plasma is the best specimen for most of clinical laboratory tests? Expound your answer.

What mass of solid NaOH (97.0% NaOH by mass) is required to prepare 1.00 L of a 10.0% solution of NaOH by mass? The density of the 10.0% solution is 1.109 g/mL.

Without consulting your textbook, list and explain the main postulates of the kinetic molecular theory for gases. How do these postulates help us account for the following bulk properties of a gas: the pressure of the gas and why the pressure of the gas increases with increased temperature; the fact that a gas tills its entire container; and the fact that the volume of a given sample of gas increases as its temperature is increased.

What does it mean when we say that a 200-mL sample and a 400-mL sample of a solution of salt have the same molarity? In what ways are the two samples identical? In what ways are these two samples different?

2. A serum is diluted 1:20 then 2 parts of the resulting dilution is added to 40 parts saline. Then 3 parts of the last dilution was added to saline to have a total volume of 6 parts. What is the final dilution?

Follow the Given-Required-Solution format. Round off your answers in four decimal places. Use whole numbers for the molecular weights.

Suppose one needed 10.07 grams of dilute aqueous solution. What is the approximate volume of the solution in mL that would be equivalent to the grams?

When you are dispensing stock solution into your graduated cylinder, you find that you have poured out too much solution. What is the best thing to do with the excess solution? O use the whole amount in the experiment om O pour into the waste container O pour back into the stock bottle O pour down the sink drain a

Complete the table by entering the molarity of B2- for each standard solution. Show an illustrative calculation for tube ‘A’. Use the dilution formula and express each result to one more digit than allowed by applying the rules of significant figures. Standard Volume of stock B2- solution taken, mL Molarity of dilute B2 Construct a graph of Absorbance vs. molarity of B2- in Excel using the data in the preceding table. Make certain to title the graph and include axes labels with proper units. Absorbance is dimensionless (has no unit). Add a linear trendline to the graph but do not set the y-intercept to zero Solid M2B is added to 25 mL of water, the resulting mixture is continually stirred for 1 hour. At this point, it is assumed that equilibrium (eqn 3) has been established. The mixture is transferred to a test tube, and the test tube is centrifuged to assure that any residual solid M2B is fully settled out. A portion of the supernatant in the test tube is carefully…

Round off your answers in four decimal places. Use whole numbers for the molecular weights. 4. When 2.00 grams of KMnO4 is dissolved into 100.0 mL of solution, what normality results? How many grams of KMnO4 are needed to make 500.0 mL of a 0.200 N solution?