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Subject: Chemistry, asked on 4/5/18

i m confused b/w A and D pls give solution for your answer
Q.50) Calculate the amount of 50 % H2SO4 required to decompose 50 g of Marble (calcium carbonate).
A) 49 g
B) 48 g
C) 24.5 g
D) 98 g
 

Subject: Chemistry, asked on 4/5/18

Why carbon disulphide and acetone shows positive deviation acc to Raoults law. Give simple and effective reason please

Subject: Chemistry, asked on 4/5/18

When and where is SATP(Standard Ambient Temperature and Pressure) calculated ? Why did we introduce a new standard, instead of being comfortable with just NTP(Normal Temperature and Pressure) and STP(Standard Temperature and Pressure) ?

Subject: Chemistry, asked on 3/5/18

the number of electrons needed to reduce 3g of mg+2 to mg
a)N b) N/2 c)N/4 d)N/8

Subject: Chemistry, asked on 2/5/18

Ans

Subject: Chemistry, asked on 2/5/18

Ans pls

Subject: Chemistry, asked on 2/5/18

Why the vapour pressure of solid is fixed?

Subject: Chemistry, asked on 2/5/18

How non volatile solute decreases the vapour pressure

Subject: Chemistry, asked on 2/5/18

what is the meaning of i in the osmotic pressure equation

Subject: Chemistry, asked on 1/5/18

Why ccl4 and Chcl3 , acetone and ethyl alcohol,ethanol and water shows positive deviations according to RAOULT'S LAW?

Subject: Chemistry, asked on 1/5/18

Solve this:
Q.140. A mixture containing N2 and H2 in a mole ratio 1 : 3 is allowed to attain equilibrium when 50 % of the mixture has reacted. If P is the pressure at equilibrium, then the a partial pressure of NH3 formed is
(A) P/2
(B) P/3
(C) P/5
(D) P/9

Subject: Chemistry, asked on 30/4/18

Plz.ans 20

Subject: Chemistry, asked on 30/4/18

Calculate pH of 0.1N acetic acid which is 1% disassociated.

Subject: Chemistry, asked on 28/4/18

In both the questions, the way the molality has been calculated is different . Plz tell when to use each method.

Subject: Chemistry, asked on 28/4/18

How is Aluminium hydroxide soluble in a strong base ? Wont it show common ion effect?

Please consider it as a single question.Kindly don't send links.

Thankyou 

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