this is a qu in some sheet
a soln was known to contain either sodium carbonate or sodium chloride. samples of the soln gave bubbles of gas with HNO3 but no ppt with AgNO3. which of the anoins is present?
Well, its obviously carbonate ions right? but i dnt get how it does not form a ppt with...
Hi, can someone please help me with this question.
Firstly, I don't know where to start.
And secondly, I'm not sure if I even labelled it right. xD
The answer is
3091m³
XD true. but then again, i still took the test seriously and did the best i could.
Plus, even if I did finish the test like one hour early (i wish), the examiners said you're only allowed to leave in the last ten minutes. i went to 12:30 birrong btw
I can't seem to get any of the answers.
ΔH/m x M = 2021
Given m = 0.06 and M = 74.12. Find ΔH
then sub it in the formula?
ΔH= -mcΔt
Am i supposed to do this or not.
I keep getting 21 >.<
Can someone please show me the proper way how to solve it.