How will u distinguish between?? 1)propene and propane 2)1-butene and 1-butyne 3)2-butene and 2-butyne 4)formaldehyde and acetaldehyde

Md Ariful Islam

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1) Differ by the presence of the double bond (in the reaction with potassium permanganate propene discolors it) 2) The first carbon atom in butene - 1 has double bond, butyne- 1 has triple bond. 3) In the second carbon atom in the butene - 2 there is double bond, butyn-2 has triple bond. 4)In acetaldehyde there's one methyl group more than in formaldehyde.
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A gas cylinder contains 5.0 kg of propane. How many propane molecules are in the cylinder? The Avogadro constant, L = 6.022 × 1023 mol–1

M(C3H8) = 44 g/moln(C3H8) = 5000 (g)/44 (g/mol) = 113,6 molN = n•NA = 113,6 • 6,02•1023 = 684,1•1023 molecules Answer: 684,1•1023 molecules of propane are in the cylinder.

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bond length in propene is shorter than bond in propane

Double bond in any alkene can be described in terms of overlapping atomic orbitals. A carbon-carbon single bond (in propane) consists of a single sigma-bond. A carbon-carbon double bond (in...

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What is the product formed in the reaction of 2-butyne with H2/Lindlar’s catalyst? (1) trans-2-butene (2) cis-2-butene (3) butane (4) 1-butyne

(2) cis-2-butene

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c) Explain using structures why trans-2-Butene (a disubstituted alkene) is more stable than cis-2-butene (another disubstituted alkene)?

The stability of an alkene can be determined by measuring the amount of energy associated with the hydrogenation of the molecule. Since the double bond is breaking in this reaction,...

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Describe a chemical test that could be used to distinguish between propane and propene. In each case, state the result of the test.

So, in conclusion: Add bromine water (brown) to the test tubes. If the bromine water stays brown, the test tube contains propane. If the bromine water goes colourless, the test tube contained...

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Propane (C3H8) has a normal boiling point of -42.0°C and a heat of Vaporization (Hvapo) of 19.04Kj/mol. What is the Vapor Pressure of propane at 25.0°C?

According to Clausius Clapeyron equation:ln(P2/P1) = (-∆Hvap)/R × (1/T2 - 1/T1),where T1 - boiling point (-42°C = 315.15 K), T2 - temperature (25°C = 298.15 K), ∆Hvap - heat of...

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A fuel tank used in a barbeque contains 1.09 x 10-1 moles of propane, C3H8(g). How many molecules of propane are in the tank?

Solution:Moles of propane = 1.09×10-1 moles = 0.109 molesOne mole of any substance contains 6.022×1023 atoms/molecules.Hence,Number of propane molecules = 0.109 mol × (6.022×1023 molecules / 1 mol) = 6.56×1022 moleculesAnswer: 6.56×1022 molecules...

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Gas barbecues burn propane using oxygen from the air. If 5.00 L of propane is burned, predict the volume of oxygen, at the same temperature and pressure, required for complete combustion.

Solution:Propane (C3H8).The balanced chemical equation:C3H8 + 5O2 = 3CO2 + 4H2OAccording to the equation: n(C3H8) = n(O2)/5n(gas) = V(gas) / VmHence,V(C3H8)/Vm = V(O2)/5VmV(C3H8) = V(O2)/5V(O2) = 5 × V(C3H8) =...

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To produce formaldehyde using the reverse reaction provide 3 different ways to increase the production of formaldehyde explain each method

2CH3OH(g) + O2(g) → 2HCHO(g) + 2H2O(g) - the main reaction of formaldehyde production in industry.Under normal conditions the reaction is reversible and has a low conversion rate, because the...

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Propane (C3H8) has a normal boiling point of -42.0°C and a heat of Vaporization of 19.04Kj/mol. What is the Vapour Pressure of propane at 25.0°C?

T1 = -42.0 + 273.15 = 231.15 KT2 = 25 + 273.15 = 298.15∆Hvap = 19.04 kJ/mol = 19040 J/molAt normal boiling point, the vapor pressure is equal to 1...

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