You want to compare a patient's measured calcium ion concentration to the normal calcium ion concentration in blood serum.  The only range you can find is 4.5 - 5.5 mEq/L, but the blood results show a concentration of 0.22 mmol/dL.  Convert the measured calcium ion concentration from the blood results to mEq/L (to one decimal place) What are the units?

A chemistry student weighs out 0.211 g of chloroacetic acid (HCH,CICO,) into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.0700 M NaOH solution. Calculate the volume of NAOH solution the student will need to add to reach the equivalence point. Be sure your answer has the correct number of significant digits. mL x10

A student wants to make a 0.600 M aqueous solution of barium sulfate, BaSO4, and has a bottle containing 12.00 g of barium sulfate. What should be the final volume of the solution?   Find the numerical answer for this question and make sure to include the following: What is the formula for molarity? What is the molar mass for barium sulfate? When you give your numerical answer, what are the correct significant figures and how do you know that is the correct amount?

A chemist prepares a solution of nickel(II) chloride  NiCl2  by weighing out  22.06g  of nickel(II) chloride into a  100.mL  volumetric flask and filling the flask to the mark with water. Calculate the concentration in  /gdL  of the chemist's nickel(II) chloride solution. Round your answer to  3  significant digits.

A chemistry student weighs out 0.112 g of formic acid (HCHO2) into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.0800M NaOH solution. Calculate the volume of NaOH solution the student will need to add to reach the equivalence point. Be sure your answer has the correct number of significant digits.

In the laboratory you are asked to make a 0.128 m chromium(III) acetate solution using 475 grams of water. How many grams of chromium(III) acetate should you add? grams.

An analytical chemist weighs out 0.061 g of an unknown monoprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with 0.1900 M NaOH solution. When the titration reaches the equivalence point, the chemist finds he has added 3.3 mL of NaOH solution. Calculate the molar mass of the unknown acid. Round your answer to 2 significant digits. g 0 x10 mol C X Ś 2.

If you titrate 25.00 ml of a 410. mg/L ascorbic acid solution and titrate it with 1.38x10 M KIO, what volume of titrant (ml) will you use? Please ensure that you include units (ml). Please report your answer to the correct number of significant figures. Answer: If you titrate 25.00 ml of a 480. mg/t ascorbic acid solution, boil it for 15 minutes and then titrate it with 125 mt of 1.34x10 M KIO, What is the concentration of Vitamin C in mg/g ascorbic acid ( original) (mg/9? Answer: And finally, If you boil 26.97 g of juice and then titrate it with 10.55 ml. of 1.16x10 M KIO, what is the concentration of vitamin C in mg per gram of juice (mg/g)? Piease remember to include units (mg/g) of Please remember to use the correct number of significant figures. tion Answer:

A patient is given an IV drip at a rate of 110 mL per hour for a total of 6.2 hours. The IV has a calcium ion concentration of 5.94 mEq/L. How many grams of calcium ion were delivered to the patient through the IV?