General Chemistry Answers

Answer the following questions regarding the peptide IDCG. a) Write the three-letter code of the one-letter amino acid sequence provided above. b) Draw the structure of the peptide as it should exist at pH 6.5 and label the N- and C- terminus of the peptide. c) Calculate the net charge of the peptide at pH 1.5. d) Calculate the pI of the peptide. 

If 70 mL of 0.01M HCL is added to 150 mL of 0.1M acetic acid, pH 5.0, what is the resulting pH? Identify the appropriate acid and conjugate base and determine their concentrations in the final solution. 

Three samples of gas each exert 740. mm Hg in separate 2 L containers. What pressure do they exert if they are all placed in a single 2 L container? Show complete solution.

Three samples of gas each exert 740. mm Hg in separate 2 L containers. What pressure do they exert if they are all placed in a single 2 L container

Three samples of gas each exert 740. mm Hg in separate 1 L containers. What pressure do they exert if they are all placed in a single 2 L container ? Show complete solution

A sample of nitrogen occupies 5.50 liters under a pressure of 900 torr at 25oC. At what temperature will it occupy 10.0 liters at the same pressure? Show Complete Solution.

The volume of a gas is 250 ml at 720 torr and 25°C . If the pressure is held constant and the temperature is raised to 100°C , what will be its new volume?

Explain the relation between phase transition temperatures and intermolecular attractive forces ?

Define phase transitions and phase transition temperatures?

Describe the roles of intermolecular attractive forces in each of these properties/phenomena?