Question: Current Attempt in Progress A solution is made by dissolving 104.9 grams of sodium thiocyanate ( NaCNS(s) ) in enough water to make 1.000L of



Current Attempt in Progress A solution is made by dissolving 104.9 grams of sodium thiocyanate ( NaCNS(s) ) in enough water to make 1.000L of solution at 20.0C. The density of this solution is found to be 1.0491gcm3. Part 1 * Incorrect. Mass \% is mass of solute divided by mass of solution (not solvent) times 100. Calculate the concentration of this solution in mass %. \& Incorrect. Rearrange equation 98 in the textbook to solve for concentration (m/V). A protein has a molar mass of 126000gmol1. An aqueous solution of this protein has an osmotic pressure of 0.167kPa at 32.5C. Calculate the concentration of the protein (in gL1 ) in this solution. Briefly explain why acetonitrile is miscible with both water and cyclohexane. Select all that apply. Water is a polar hydrogen-bonding solvent. Acetonitrile is nonpolar. Acetonitrile has one end that is nonpolar and the other end that is both polar and has a lone pair on N. Cyclohexane is a polar solvent. The nonpolar end of acetonitrile makes it soluble in water and the polar end of acetonitrile makes it soluble in cyclohexane. The polar end of acetonitrile makes it soluble in water and the nonpolar end of acetonitrile makes it soluble in cyclohexane. Cyclohexane is a nonpolar solvent. Water is a nonpolar hydrogen-bonding solvent
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