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Calcium supplements commonly contain calcium ions in the form of calium carbonate (CaCO3). If one calcium supplement weights 600. mg, how many moles of calcium are contained in each pill? What percent of the supplement is carbonate?
Hemoglobin is the protein that transports O2 through the blood from the lungs to the rest of the body. In doing so, each molecule of hemoglobin combines with four molecules
Suppose in the lab you measure 0.3951 g of NaOH and dissolve it into 100.0 mL of water. You then measure 0.1985 g of KHP and place it in a clean, dry 100-mL beaker, and then dissolve the KHP in about 25 mL of water and add a couple of drops of phe..
A 43 kg person drinks 280. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 19% of the energy in milk is converted to mechanical work.
Calculate kp and kc for the dissociation.
Triethylamine, (ch3ch2)3n, is a liquid that boils at 89C and has a viscosity of about 4 x10^-4 kg/ms. Explain the differences in properties of these two componds.
you are given solid AgNO3, distilled water and 250ml volumetric flask. describe how to make up the required solution
How many L. of N2 gas are produced at STP when the airbag inflates if the airbag contains 132 g. of Sodium Nitride?
A protein contain the following amino acids 61 LYS 75 GLU 26 TYR 22 HIS 45 PRO 47 PHE 29 ARG 67 GLY 77 ASP 65 ALA 24 THR 25 MET 71 VAL 56 ILE 12 SER 83 LEU A) What is its net charge at pH 13
calculate the molecular weight of phosphorus if 2.3437 grams are dissolved in 50.00 grams of para-dibromobenzene and the solution freezes at 81.35 degrees C. What is the molecular formula for phosphorus
A Cu/Cu2+ concentration cell has a voltage of 0.24 V at 25M . The concentration of Cu^2+ in one of the half-cells is 1.5×10-3 . What is the concentration of Cu2+ in the other half-cell?
Determine the mass of aluminum acetate that can be made if you do the reaction with 125 grams of acetic acid and 275 grams of aluminum hydroxide.
Draw the mechanism of Grignard Synthesis of Malachite Green. (Ensure that all mechanistic arrows are correctly drawn.) Show the following
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