can u make me understand what is this formulaQ
Q6 was left so ;
P1V1 + P2V2 = PtVt
Pt , Vt= total pressure and volume
1/1000 *2000 + 2/1000 + 1000 = Pt * 3/1000
Ans = A 1 1/3
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can u make me understand what is this formulaQ
Q6 was left so ;
P1V1 + P2V2 = PtVt
Pt , Vt= total pressure and volume
1/1000 *2000 + 2/1000 + 1000 = Pt * 3/1000
Ans = A 1 1/3
The ox.no of N in NCl3 is +3 and in N2 it is 036 When the yellow liquid NCl3 is stirred into aqueous sodium hydroxide, the reaction that occurs
can be represented by the following equation.
2NCl3(l) + 6NaOH(aq) → N2(g) + 3NaCl (aq) + 3NaOCl (aq) + 3H2O(l)
What will be the result of this reaction?
1 The nitrogen is oxidised.
2 A bleaching solution remains after the reaction.
3 The final solution gives a precipitate with acidified silver nitrate.
why is 1) not correct
The ox.no of N in NCl3 is +3 and in N2 it is 0
change in ox.no=3 so N has GAINED 3 electrons so it's been reduced and that's why 1 is not correct and hence C is the right answer
since they are now all liquid. When the bonds in liquid molecules are broken they turn to gas so the best the strength of liquid molecule bond is how easily they turn to gasWhy it's not A?
OH! Thats how we do It I was a bit confused. Thankss it did helpThis is how I got it
View attachment 62346
The quality is pretty bad cuz its my webcam. hope this helps
BF3 bcos of the electronegative differenceX is an element in Period 2. In which fluoride is the F–X–F angle the largest?
A BF3 B CF4 C NF3 D OF2
which year and variantBut Nitrogen is more electronegative than chlorine so shouldn't Nitrogen be -3 and Chlorine be +1 (Br<Cl<N<O<F)
I think the answer is C by following the bronsted-lowry theory of acids and bases. HNO2 is stronger than HCO3 so HCO3 acts as a base. HCO3 is carbonic acid which doesn't ionise water as much as HNO2. HCO3 is also a component of blood remember?Any trick for this kind of question? :/
THANK YOUBF3 bcos of the electronegative difference
thanksYou just need to understand these:
Pressure is DIRECTLY PROPORTIONAL to Temperature p=nt
Pressure is INDIRECTLY PROPORTIONAL to volume p=n/v where n is a constant
from there you derive the equations 1V1=P2V2, P1/T1 = P2/T2, P1V1/T1 = P2V2/T2
Its pretty simply if you can understand the relationship!!!
hope that helps
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