Northern cod produce proteins that protect their cells from damage caused by subzero temperatures. Measurements of the osmotic pressure for two “antifreeze” proteins at 18°C yielded the data listed below. Use this information to calculate the molar mass for each of the proteins. Assume these proteins are nonelectrolytes and use the value i = 1.   If a 53.7  mg sample of protein A in 1.5 mL of water has an osmotic pressure of 0.285  atm, what is the molar mass of protein A?   If a 45.7  mg sample of protein B in 1.75 mL of water has an osmotic pressure of 0.218 atm, what is the molar mass of protein B?

Q: 4) Which of the following is the most stable conformer of bromocyclohexane? Br IV. V. A₁ Br Br H

A:

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Q: A chemist adds 1.40 L of a 11.5 g/dL sodium chloride (NaCl) solution to a flask. Calculate the mass…

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Q: What is the molarity of a saturated solution of Ag,S? Ag₂S has a ksp of 1.6 X 10-4⁹ and it has a…

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Q: 6. What is the pH value of a 0.10M CH NH,NO, solution? The Kb of CH NH, is 4.4x10-4

A: The concentration of Ch3Nh3No3 solution is 0.10 M .The kb value = 4.4 ×10-4 .

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Q: CH3COCH₂CH₂OH

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Q: H3C. нох H3C |

A:

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Q: How many lone pairs of electrons are on the Nitrogen in the following molecule? NH

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A:

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.