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A sample of hexane was cracked. A sample of 50cm³ of gas was produced. The gas decolorized 4cm³ of 0.23moldm–³ solution of bromine. What % of aliens was produced?

alkene not alien

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A sample of hexane was cracked. A sample of 50cm³ of gas was produced. The gas decolorized 4cm³ of 0.23moldm–³ solution of

Top answer: millimoles Br2 used = mL x M = 4*0.23 = approx 0.9 1 mol Br2 adds to 1 mol alkene; therefore, mmols Read more.
A sample of hydrogen gas (H2) is produced in a laboratory by displacement of water. A 645 mL sample of hydrogen is collected at

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Top answer: a. PV = nRT and n = grams/molar mass b. (V1/T1) = (V2/T2) 3. (P1V1/T1) = (P2V2/T2) 4. This is a Read more.
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Top answer: To determine the number of moles in the gas sample, we need to use the equation: ΔS = nR ln(Vf/Vi) Read more.
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Top answer: 1. If the gas is kept constant WHAT. I assume you mean constant pressure. 30.0 L = V1 5.0 C = (273 + Read more.
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Top answer: Convert the volume to V at 1 atm. At 25°C, the molar volume is 24.465 L. Use proportion to find the Read more.
A sample of methane (CH4) gas contains a small amount of helium. Calculate the volume percentage of helium if the density of the

Top answer: The general gas formula of PV = nRT can be rearranged for molar mass of P*M = density*RT M = dRT/P = Read more.