Define the henderson hasselbalch equation

Assignment Help Chemistry

Reference no: EM13163883

You need to prepare 1.000 L (in a volumetric flask) of 0.50 M phosphate buffer, pH 6.23. Use the Henderson Hasselbalch equation with a value of 6.64 for pK2 to calculate the quantities of K2HPO4 and KH2PO4 you need to add to the flask. Record the steps of these calculations and use them as a guide for the calculation you will have to make in the laboratory. (Calculate the intermediate values to at least one more significant figure than required). 1.) What is the [K2HPO4]/[KH2PO4] ratio you will need? 2.) What concentrations of [K2HPO4] and [KH2PO4] will you need to make the total concentration 0.50 M? 3.) How many moles of K2HPO4 and KH2PO4 will you need? 4.) What mass of K2HPO4 and KH2PO4 will you need?

Reference no: EM13163883

Questions Cloud

Create a web application for sheridan restaurant : Create a web application for Sheridan Restaurant Reviews that contains the following functionality - Display a table of all restaurants based on the city entered by the user

How will this influence the efficiency of ion exchange : if the level of solution in the column drops below the level of the resin, channels will be formed in the resin column.How will this influence the efficiency of ion exchange in the column?

Afford national health care insurance : If politicians are overly biased in their feelings, how might change take place, do we as a nation need change, can we afford national health care insurance, who would run it, would it be all inclusive?

What is the mass of the fishing weight in grams : The temperature of a lead fishing weight rises from 15 oC to 45 oC as it absorbs 22.5 kJ of heat. What is the mass of the fishing weight in grams? Heat capacity of lead is 0.128 J/g oC.

Define the henderson hasselbalch equation : What concentrations of [K2HPO4] and [KH2PO4] will you need to make the total concentration 0.50 M? 3.) How many moles of K2HPO4 and KH2PO4 will you need? 4.) What mass of K2HPO4 and KH2PO4 will you need?

Write the net-ionic equation : Write the net-ionic equation that represents the reaction that occurs when the C2H5NH2 solution is mixed with the HCl solution.

How do institutional and non-institutional pharmacy settings : What patient issues might arise when working in an institutional pharmacy setting?

State highest buffer capacity of solution : A buffer solution with a pH reading of 8.50 was prepared by mixing 0.25 mole acid (HA) and 0.05 mole NaOH in 500.0mL DI water... how much more grams of NaOH

Design a class named large integers : Design a class named largeIntegers such that an object of this class can store an integer of any number of digits.

User Account

All Pages