Home / Expert Answers / Chemistry / nbsp-3-calculate-the-osmolarity-of-a-solution-containing-200-mathrm-mm-mathrm-kcn-an-pa335

(Solved):   3. Calculate the osmolarity of a solution containing \( 200 \mathrm{mM} \mathrm{KCN} \) an ...



3. Calculate the osmolarity of a solution containing \( 200 \mathrm{mM} \mathrm{KCN} \) and \( 0.5 \mathrm{mM} \) lysine.
\(

 

3. Calculate the osmolarity of a solution containing \( 200 \mathrm{mM} \mathrm{KCN} \) and \( 0.5 \mathrm{mM} \) lysine. \( K C N=400 \) mM LySine \( =0.5 \mathrm{mom} / \mathrm{L} \) 4. Calculate osmolarity of a solution containing \( 10 \mathrm{mM} \mathrm{KCl}, 20 \mathrm{mM} \mathrm{NaHCO}_{3} \), and \( 5 \mathrm{mM} \mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6} \). 5. Calculate the osmolarity of a solution containing \( 150 \mathrm{mM} \mathrm{NaCl}, 10 \mathrm{mM} \) albumin, and \( 15 \mathrm{mM} \mathrm{H}_{2} \mathrm{O}_{2} \). Milliequivalents To calculate the milliequivalents in a solution, multiply the millimolar concentration of each ion by the number of charges (or valence) of that ion. We do not differentiate between positive and negative, and we do not add the numbers together. \( \mathrm{mEq} / \mathrm{L}=\mathrm{mM} \times \) valence 6. Determine the \( \mathrm{mEq} / \mathrm{L} \) of the ions in a solution containing \( 5 \mathrm{mM} \mathrm{Mg}{ }^{2+}, 10 \mathrm{mM} \mathrm{HPO4} ; 0.5 \mathrm{mM} \mathrm{Cl} \), and \( 0.1 \mathrm{mM} \) urea. \( \quad 10 \mathrm{mM} \mathrm{HPO4}=20 \mathrm{FCl} / \mathrm{L} \), \( 5 \mathrm{mM} M g^{2+}=10 \mathrm{~F}=q / L, 0,5 \mathrm{M} \mathrm{Cl}^{-}= \) 7. The doctor tells Naomi that if the levels of \( \mathrm{Ca}^{2+} \) in blood plasma exceed \( 6 \mathrm{mEg} / \mathrm{L} \), then she will be in danger of developing kidney stones. Her test results come back, and she is relieved to see her blood \( \mathrm{Ca}^{2+} \) levels are listed at \( 4.5 \mathrm{mM} \). Use what you know about calculating milliequivalents to explain why Naomi should not be relieved. b \( 12 M \mathrm{EqC}_{q}^{2+} / \mathrm{L} \times 4.5 \mathrm{~m} M= \) Hematocrit Hematocrit is the percentage of red blood cells in a whole blood sample. To calculate the hematocrit, a whole blood sample must be spun to separate the plasma from the formed elements. Hematocrit is the volume of red blood cells divided by the total volume of blood times 100 . Hematocrit \( = \) Volume of RBC/Total volume \( \times 100 \) 8. \( 8 \mathrm{ml} \) of whole blood are spun in a centrifuge. After spinning there are \( 3.8 \mathrm{ml} \) in the top layer. a. Estimate what is the volume of the bottom layer. b. Calculate the hematocrit. \[ \frac{(8-3.8 m 1)}{8 m L}=\frac{4.2 m L}{8 m L}=\mid \sqrt[5]{5}, 5 \% \]


We have an Answer from Expert

View Expert Answer

Expert Answer


4. We have 20 mM NaHCO3 and we know that NaHCO3 will dissociate into Na+ and HCO3- .Therefore, Osmolarity = (2×20) mOsmol/L = 40mOsmol/L We have 10mM KCl and KCl dissociates into K+ and Cl- .So, Osmolarity = (2*10) mOsmol/L = 20 mO
We have an Answer from Expert

Buy This Answer $5

Place Order

We Provide Services Across The Globe