AA gas cylinder contains 12- 1024 molecules of oxygen gas- If Avogadro-s number is 6- 1023- Calculate-i the mass of oxygen present in the cylinder-ii the volume of oxygen at S-T-P- present in the cylinder- -O-16- -2-b A gaseous hydrocarbon contains 82-76 -3-c The equation 4NH3 - 5O2 - 4NO - 6H2O- represents the catalytic oxidation of ammonia- If 100 cm3 of ammonia is used calculate the volume of oxygen required to oxidise the ammonia completely- -3-d By drawing an electron dot diagram show the formation of Ammonium Ion -Atomic No- N - 7 and H - 1- -2-

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard X

Chemistry

Stoichiometric Relation

aA gas cylind...

Question

(a)
A gas cylinder contains $12 \times 10^{24}$ molecules of oxygen gas. If Avogadro's number is $6 \times 10^{23}$ ; Calculate:
(i) the mass of oxygen present in the cylinder.
(ii) the volume of oxygen at S.T.P. present in the cylinder. [O=16]
[2]

(b) A gaseous hydrocarbon contains 82.76% of carbon. Given that its vapour density is 29, find its molecular formula. [C=12, H=1]
[3]

(c) The equation $4 N H_{3} + 5 O_{2} \to 4 N O + 6 H_{2} O$ , represents the catalytic oxidation of ammonia. If 100 $c m^{3}$ of ammonia is used calculate the volume of oxygen required to oxidise the ammonia completely.
[3]

(d) By drawing an electron dot diagram show the formation of Ammonium Ion [Atomic No.: N = 7 and H = 1]
[2]

Open in App

Solution

Suggest Corrections

Similar questions

(a) A gas cylinder contains 24 × 10²⁴ molecules of nitrogen gas. If Avogadro's number is 6 × 10²³ and the relative atomic mass of nitrogen is 14, calculate:
(i) Mass of nitrogen gas in the cylinder.
(ii) Volume of nitrogen at STP in dm³.

(b) Commercial sodium hydroxide weighing 30 g has some sodium chloride in it. The mixture on dissolving in water and subsequent treatment with excess silver nitrate solution formed a precipitate weighing 14.3 g.What is the percentage of sodium chloride in the commercial sample of sodium hydroxide? The equation for the reaction is
NaCl + AgNO₃ → AgCl + NaNO₃.
[Relative molecular mass of NaCl = 58; AgCl = 143]

(c) A certain gas 'X' occupies a volume of 100 cm³ at S.T.P. and weighs 0.5 g. Find its relative molecular mass.

A gas cylinder contains $12 \times 10^{24}$ molecules of oxygen gas.
If Avogadro's member is $6 \times 10^{23}$ ; Calculate :
(i) the mass of oxygen present in the cylinder.
(ii) the volume of oxygen at S.T.P. present in the cylinder. [O =16]

Q. A gaseous hydrocarbon contains

82.76

% of carbon. Given that its vapour density is

29

, find its molecular formula.

[C = 12, H = 1]

A gaseous hydrocarbon contains $82.76 %$ of carbon. Given that its vapour density is 29, find its molecular formula.
$[C = 12, H = 1]$

A gaseous hydrocarbon contains 82.76% of Carbon. Given that Its vapor density Is 29. Find its molecular formula. [C = 12, H =1].

Join BYJU'S Learning Program