Preparing Aqueous Solutions of Glycine, Glucose, Ethanol, and Hemoglobin

(a) To prepare a 1-liter aqueous solution of 1 M glycine, you would need to dissolve 75.07 grams of glycine in distilled water and then add enough water to make a final volume of 1 liter.

(b) To prepare a 1-liter aqueous solution of 0.5 M glucose, you would need to dissolve 90.09 grams of glucose in distilled water and then add enough water to make a final volume of 1 liter.

(c) To prepare a 1-liter aqueous solution of 10 mM ethanol, you would need to measure out 0.789 grams of ethanol and add it to distilled water. Then, add enough water to make a final volume of 1 liter.

(d) To prepare a 1-liter aqueous solution of 100 nM hemoglobin, you would need to calculate the amount of hemoglobin needed based on its molecular weight and desired concentration. Once you have determined the mass of hemoglobin needed, dissolve it in distilled water and then add enough water to make a final volume of 1 liter.