Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
Provide the correct name for the following peptide. Ala-Ala-His-Phe-Lys-Asp-Asn-Phe What is the N-terminal amino acid? The C-terminal amino acid? What is the net charge on the peptide at pH 1.0?
If the pure benxophenone melted at 48.1 degrees C, what is the molecular weight of the unknown compound? The Kf for benxophenone is 9.8 degrees C/m.
Imagine that you drive your car high in the mountains when you have a minor accident. How can you apply the gas laws to explain what happened with the airbag?
The pressure in container (2) was also doubled by pumping some argon into it. Did the partial pressure of He, pHe, change in these two containers?
A 122 piece of metal is heated to 285 and dropped into 84.0 of water at 26. If the final temperature of the water and metal is 58.3, what is the specific heat of the metal?
The molecules of argon at 0 degree celsius and 1 bar of pressure. (d) what values would be obtained at 1000 degree celsius and 1 bar? (e) At 0 degree celsius and 100 bar?
A major oil company has used a gasoline additive called MMT to boos the octane rating of its gasoline. What is the emperical formula of MMT if it is 49.5% C, 3.2% H, 22.0% O, and 25.2% Mn?
What is the mass, in grams, of 55.0 mL of the liquid propylene glycol, a moisturizing agent for foods, which has a density of 1.036 g/mL at 25 degress Celcius?
What is the energy change when the temperature of 14.2 grams of solid gold is decreased from 38.1oC to 24.1oC ?
The organic base is extracted from 225 mL of a 0.175 M aqueous solution of B, that has been adjusted to a pH of 8.00, with 75.5 mL of ether. Only one extraction is performed. Calculate the concentra
If only 19% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake?
The flask was then shaken until the solution was uniform. A 35.0-mL sample of this glucose solution was diluted to 0.500 L. How many grams of glucose are in 100. mL of the final solution?
what is molarity of potassium ion in a solution prepared by mixing 200ml of 0.150M potassium chloride and 150ml of 0.200M potassium salphate?
What conclusions can you draw from these data concerning the types and the relative magnitude of the intermolecular interactions in these two liquids?
Outline step by step what happens when suddenly a piston enclosing the cylindrical container is moved down decreasing the volume of the container.
What is the vapor pressure of a solution made by dissolving 25.0 g acetone in 25.0 ethyl acetate at 30C? What is the mole fraction of each component in the vapore at 30C?
What does this indicate about the spacing between molecules in each phase? What is the main structural difference between solid and liquid bromine.
What assumptions are necessary for the derivation to give the empirical result PV= nRT regardless of the masses of the molecules of the sample?
A white powder, consisting of a simple mixture of tartaric acid (C4H6O6) and citric acid (C6H8O7) was analysed to determine the elemental composition. Combustion of a 429.6-mg sample produced 526.3
If 2.7g of the same gas is added to this constant 5.25L volume and the temperature raised to 67 degrees celcius, what is the new gas pressure?
In treatment with 6 M HNO3, X dissolves; there is no effect on W, Y, or Z. On the basis of these test results, identify the solids and explain your answers.
A 35.00 mL sample of HNO3 solution is neutralized by exactly 42.63 mL of 0.4153 M KOH. What is the molarity of the HNO3 solution?
Given that the partial molar volume of water in the solution is 17.4 cubic centimeter per mol. what is the partial molar volume of the ethanol?
A sample of oxygen occupies 47.2 liters under a pressure of 1240 mm Hg at 25oC. What volume would it occupy at 25oC if the pressure were decreased to 730 mm Hg?
If 750.0 mL of 0.806 M NaClO is mixed with excess ammonia, how many moles of hydrazine can be formed?