PH of acidic buffer = pKa + log [CH₃COONa - HCl] / [CH₃COOH + HCl]
pKa of CH₃COOH = 4.74
Concentration of acetic acid in buffer = 2.0 M
Concentration of sodium acetate = 1.0 M
Concentration of HCl must add = x
pH = 4.74 + log (1-x) / (2+x) = 4.11
x = concentration of HCl must be added = 0.43 M
number of moles of HCl = M * V = 0.43 * 1 = 0.43 mol
mass of HCl must be added = 0.43 * 36.5 = 15.7 g
Wood can be natural source of heat just as coal is however, coal releases chemicals and spoke (which causes smog- nasty poluted fog) wood on the other hand is more natural and does not release any harmful chemicals into the air
Yes because molecules is solid
A loss<span> of </span>kinetic energy<span> in the atoms or molecules of a </span>sample of matter<span> will result in the cooling of the sample.</span>