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lulu78
Questions (11)
blood helps maintain homeostasis by all of these mechanisms EXCEPT:
a. eliminates waste products b. protects about foreign
1 answer
1,462 views
Discuss the similarities and differences between the skeletons of the upper and lower extremities and relate findings to
0 answers
391 views
Discuss the similarities and differences between the pelvic and pectoral girdles and relate findings to function.
0 answers
427 views
what are the parts of the cerebrum the receive and interpret somatic senory signals?
I have searched my ext just cant find the
1 answer
404 views
how many mls of glycerol (FW= 92.1; density=1.26g/ml) must be used to make 250ml of a 0.15 M solution
1 answer
639 views
Lysozmyne is an enzyme that breks bacterial cell walls. A solution containing 0.150g of this enzyme in 210ml of solution has an
3 answers
511 views
Dr BOB can you explain this to me. I am so struggling with this subject.
NO one has helped me on this one yet can anyone help me?
0 answers
529 views
0.1m aqueous solution of HCl and 0.1m aqueous solution of C6H12O6.
calculate the boiling point of each i know the eq. dTb=Kbm but
4 answers
810 views
At 63.5 degreesC, the vapour pressure of H2O is 23.3kPa and that of ethanol is 53.3kPa. A solution is made by mixing egual
4 answers
887 views
Dr BOB can you explain this to me. I am so struggling with this subject.
during a typical breathing cycle the CO2 concentration
1 answer
668 views
brass is a subtitutional alloy consisting of a solution of copper and zinc. a particulae sample of red brass consisting of 80%
11 answers
3,434 views
Answers (11)
The question is basically asking which one of the 5 are not involved with the blood homeostasis properties. I have since figured it out. the answer is A as it is not homeostasis/negative feedback. all the others can be reverse/taken to completion.
so do i use the moles i would have from part A? surely not, becayse they just give me the mole fraction of the solution. what do i use? i have the answer of 0.472- don't know how to get it. i feel so dumb and have my exam on 23rd.
is the Kb 0.51 just standard BP of water? i think that's where i'm getting lost.
i thought pi was 0.217? the answer in the text is 1.39*10^4g
thenkyou. i missed reading that pert on that page before. i knew it was something simple. i now have parts A and B but how do you work out C? i have the mole fraction of ethanol from part A. why is it not the same?
can you show me. i'm confused.
any help will do?
i have another question on this silly topic further up if your fresh and ready again.
so the rest is good then?
dumb question? why is it 100g not 0.1kg? the rest i get/got.
i don't understand why i cant get this. I have the answers but i don't get them. i did 20g/65.4g/mol= 0.306mol, then 0.306mol/0.1kg= 3.058m, but the answer they have is 3.82m. then the next step still confuses me.
