Homework Statement
There is a reagent given . NaOH with concentration of 0,32 mol/ L
HOw to prepare it ?
it says dilute 1 part by volume of solution Naoh with 4 parts by volume of redist.water ??
(Neglect the total volume that you need , it's not important ) just the process to make it...
Homework Statement
In this experiment we will create a standard stock solution from lyphochek serum. The concentration of proteins in serum Lyphochek is 6,8 g / dl. Pipette 1.36 mL Lyphochek serum in a 25 mL volumetric flask and dilute with physiological water. Calculate the standard stock...
The following buffer problem is solved by my teacher .
300 ml ph =9.90 c= ca+cb
We're going to use NaHCO3 and NaOH
ph = 9.90 = pka - log nHCO3-/ n CO32-
pka = 10.30
nHCo3-/ n co32- = 2.51
n HCO3- +n co32- = 0.500 x 300 ml = 150 mmol
2.51 n co32- + n co32- = 150
nco32- = 150/ 3.51 =42.7 mmol
How...
Homework Statement
So I have prepare a buffer solution of 100 mL with ph of 4.00 .I have to use acetic acid and NaAc (sodium acetate ) to do so . The sum of the concentration of weak acid and its conjugate base is equal to 0.10 M
ca + cb = 0.10 M
How much volume of acetic acid and NaAc should...