Chemistry
Amit found that 30g of a gas occupied 1000 c.c at STP.
(a) What will the gram molecular weight and the vapour density of this gas be?
(b) How many molecules of this gas will be present in 44.8 l of it?
Related Questions
Rohan wants to electroplate a spoon with nickel.
(a) To which electrode should he connect the article to be electroplated?
(b) Write the equation for the reaction that will occur at the cathode.
(c) What should the anode be made up of?
An element X combines with oxygen to form an oxide X2O3. This oxide is a good conductor of electricity and can be reduced to its metal only by electrolysis.
(a) Write the equation for the reaction formed when the oxide (X2O3) combines with hydrochloric acid.
(b) How many valence electrons are present in the outermost shell of X?
(c) Will element X undergo oxidation or reduction?
Observe the reactions given below and answer the following questions:
(a) Identify compound P.
(b) Give the chemical formula of Z.
(c) Write the reaction taking place between the identified compound P and sulphuric acid.
(d) Name compound Y.