A pharmacist must calculate the shelf life for an antibiotic. The antibiotic is stored as a solid and a fresh solution must be prepared for the patient. The antibiotic is unstable in solution and decomposes according to the following data: Time (days) [Antibiotic] (mol/L) 01.24 x 10-210.0.92 x 10-220.0.68 x 10-230.0.50 x 10-240.0.37 x 10-2This is a first order process. Question 1Calculate the half-life for the antibiotic. The units should be in days and should be calculated to three significant figuresCalculate the rate constant (with appropriate units) for a first order reaction which is 30.0% complete in 363 s.How long will it take for the reaction to go to 95.5% completion?

The systemCO2(g) + H2(g) ⇀↽ H2O(g) + CO(g)is at equilibrium at some temperature. Atequilibrium a 4.00 L vessel contains 1.00 moleCO2, 1.00 mole H2, 2.40 moles H2O, and 2.40moles CO. How many moles of CO2 must beadded to the system to bring the equilibriumCO concentration to 0.695 mol/L?Answer in units of moles

A 2.00 liter vessel is filled with NH3(g) to apressure of 4.00 atm and the reactionN2(g) + 3 H2(g) ⇀↽ 2 NH3(g)comes to equilibrium at a fixed temperature.At equilibrium it is found that the pressureof H2 is 2.1 atm. What is the equilibriumpressure of NH3?Answer in units of atm