AP CHEM

posted by .

Please help me with these AP CHEM homework problems problems and show me the steps:

Mass per Volume Results for Titrations: Determine the mass per volume results requested in the following problems.


#23) A particular water supply is found to contain 0.000160 MAs, what is the concentration as milligrams As per liter of water?


#26) A sample if blood is analyzed for total calcium, the result (0.00236 Mcalcium) is very near the middle of the normal range for adults (8.5-10.5 mg/dL). Use unit conversions to determine the milligram per deciliter (mg/dL) concentration of calcium in the 0.00236Mcalcium blood sample?
1000 milligrams = 1grams
10 deciliter = 1 liter

  • AP CHEM -

    For #23, what is an MA?
    For #26, what is the nature of your trouble?

  • AP CHEM -

    Also, for #23, you can't convert to mass without a molar mass somewhere.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    Someone please help me with these 2 problems!! I am going nuts! How many moles are there in 16grams of O2?
  2. Thank you Ann (kinematics)

    Thank you Ann! I had the equations and really was closing in on the answer... (stopping for 23 s is what really got me confused) in either case, the displacement for a) is 888 m ! Now I'll try to calculate (b). Thank you much! P.S. …
  3. ap chem

    A certain volume of a .50 M solution contains 4.5g of a certain salt. What mass of the salt is present in the same volume of a 2.5 M solution?
  4. chemistry

    I have two problems that I'm stumped on. I know the correct anwers but I'm having problems coming up with the co rrect anwsers. Here are the problems: 1) Magnesium has a density of 1.7g/cm^3 and iron has density of 7.9 g/cm^3. A block …
  5. AP CHEM

    Please help me with thses AP CHEM homework problems and show the steps to how to find the solutions: Solid Liquid Titrations: Determine the concentration of the indicated liquid unknown given the mass of a solid standard and the buret …
  6. Chem

    I have a problem, the density of the metal = mass (2) - mass (1) over Volume (2) - Volume (1) = My first mass and volume are 15.098g and 5.5 mL. the second mass and volume are 11.3235g and 4.0 mL. I got 9.04g/mL as my answer if this …
  7. math

    So I've been having trouble solving some problems. Mainly problems that look like this 5-(t+3)=-1+2(t-3) what causes problems is the 5- part. I asked my teacher for help, and he gave me a hint, which is to distribute a -1 like 5+(-1)(t)+(-1)(3) …
  8. Chemistry

    I'm having trouble trying to figure out how to setup and solve these problems: 1) 2,600.0 mL of air is at 20.0C. What is the volume at 60.0C?
  9. Algebra 1

    Terry has completed 15 homework problems, and Susan has competed 9. Terry is completing 10 problems per hour and Susan is competing 12 problems per hour. After how many hours will terry and susan have completed the same number of problems …
  10. algebra homework help

    student missed 11 problems on a Chemistry test and received a grade of 65%. If all the problems were of equal value, how many problems were on the test?

More Similar Questions