Question

65.4 Milligram of zinc was dissolved in 100ml of 0.1N HCl calculate the volume of hygrogen displaced afrom the acid at 27 degree celcius and 1 atm and also find the strenght of the remaiinig acid (zn=65.4)

Answer 1

Zn + 2HCl -> ZnCl2 +H2

Answer 2

n=m/M
pV=nRT
pH= - log [H+]

Answer 3

@Kryten can u solve this by Law of Milli Equivalent! Becoz i dont know those which u wrote!

Answer 4

you dont know ideal gas law?!

Answer 5

i knw ideal gas................ but not this pH= - log [H+]??

Answer 6

Pv=nRT

Answer 7

do you know what is pH?

Answer 8

yes...it is used to measure whether the solution is acidic basic or neutral

Answer 9

ok now what is there unclear?! [H+] is concentration of H+ in mol/dm3

Answer 10

i am unclear with LOG

Answer 11

log is logarithm look at your calculator you will find a button with log on it

Answer 12

ok......lets get started!

Answer 13

so start! what are you waiting for?!

Answer 14

well?

Answer 15

Plz wait i am solving it...

Answer 16

i am stuck somewhere i am checking it!

Answer 17

ok, waiting

Answer 18

@Kryten thxx i got it...

Answer 19

watch for volume when calculating concentration of H+