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alex41 [277]
3 years ago
11

A container holds 1 mole of helium gas. The volume of the container is 2 liters and the pressure inside the container is 105.0 k

Pa. If the volume of the container is decreased to 1.5 liters, what will be the new pressure inside the container?
Chemistry
1 answer:
andrezito [222]3 years ago
8 0
Your answer is 0.94atm
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Suggest the pH of the solution made when potassium oxide dissolves in water.
Varvara68 [4.7K]

Answer:

Since KOH is a strong base, the solution completely ionizes into K+ and OH- when in water. The reaction KOH --> K+ + OH- takes place. The concentration of [ OH- ] can then be used to calculate the pOH of the solution. pH = 14 - pOH = 14 - 1.48 = 12.52

Explanation:

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Please help which one is it
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Answer:

d:more dense and falls

Explanation:

warm air Rises around cold air bc of its lower density. and when you have a lower density fluid or sum the lower density fluid rises and the higher density falls

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What is the chemical formula of calcium chloride?
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<h3>✽ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ✽</h3>

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Carbon tetrachloride is made according to the following reaction:
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Ethyl alcohol is prepared industrially by the reaction of ethylene, C2H4, with water. What is the percent yield of the reaction
vovikov84 [41]

Answer:

% yield = 62.21 %

Explanation:

  • C2H4(g) + H2O(l) → C2H6O(l)

∴ mass C2H4(g) = 4.6 g

∴ mass C2H6O(l) = 4.7 g

  • % yield = ((real yield)/(theoretical yield))×100

theretical yield:

∴ molar mass C2H4(g) = 28.05 g/mol

⇒ mol C2H4(g) = (4.6 g)*(mol/28.05 g) = 0.164 mol

⇒ mol C2H6O(l) = (0.164 mol C2H4)*(mol C2H6O(l)/molC2H4(g))

⇒ mol C2H6O(l) = 0.164 mol

∴ molar mass C2H6O(l) = 46.07 g/mol

⇒ mass C2H6O(l) = (0.164 mol)*(46.07 g/mol) = 7.55 g

⇒ theoretical yield = 7.55 g

⇒ % yield = (4.7 g)/(7.55 g))*100

⇒ % yield = 62.21 %

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