Calculate the exact concentration of the stock protein solution in (mg / mL) based on the exact mass of albumin and the volume of the vial used to prepare the broth.     0.4905 g of albumin in 500 mL volumetric flask (mass of protein used to prepare the stock

21. 250. 0 ml of 1.00 M NAOH solution has a density of 1.90 g/ml. Calculate the concentration of this solution in molality. A. 5.26 x 10m B. 0.760 m C.0.526 m D. 0.131 m 22. An ideal solution contains 92. 1 g of glycerin, C,H,(OH), and 184.4 g of ethanol, C,H,OH, at 40 °C. The vapor pressure of pure ethanol is 0.178 atm at 40 °C. What is the molality of the solution? What is the vapor pressure of a solution? 5.43 m, 57.86 torr D. 5.43 m, 23.4 torr B. 21.7 m, 90.34 torr C. 21.7 m, 12.56 torr 23. Salt could be added to ice to lower the melting temperature of the ice so it easily freezes the ice cream mixture. If 3.5 m of salt was added to ice, determine its new freezing point. A. 6.0 °C D. -6.5 °C B. -6.0 °C C. 6.5 °C 24. Two moles of aluminum was heated from 45 °C to 93 °C. Calculate the amount of heat absorbed by aluminum. Specific heat of Al= 0.90 Jig-K A. 1333 J 4333 J B. 2333 J C. 3333 J D. 25. Calculate the standard enthalpy change, AH", for the following reaction: 2CH,OH + 30 2 CO…

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When the unshelled egg was left in distilled water for several days, it became bigger. What would have happened if it had been left in a saturated solution of salt for the same length of time? Explain.