Calculate the charge on the side chain of arginine at pH= 12.9. Fill in all the blanks below to show your work and for full marks. (Note: All the questions below pertain to the side chain of Arg at this pH ). 1. What is the ratio of [Deprotonated]/[Protonated] Arg at this pH ? (Give your answer as a decimal value. Round your answer to FOUR decimal places. eg. if you calculated 2.81838 give your answer as 2.8184) 2. What is the fraction of arginine that is [Deprotonated]? Give your answer as a decimal value. Round your answer to TWO decimal places. (eg. if you calculated 0.5862 give your answer as 0.59 ) 3. What is the fraction of arginine that is [Protonated]? Give your answer as a decimal value. Round your answer to TWO decimal places. 4. What is the charge on the side chain of arginine at this pH ? (Give your answer as a decimal value. Round your answer to TWO decimal places; indicate + or . Do not leave a space between the sign and the number)