Condensation, because it is a phase change from gas to liquid
Answer: 0.25 moles O in the sample
Explanation:
0.250 moles: C = (0.250 moles)*(12 g/mole) = 3 grams C
0.500 moles H: H = (0.500 moles)*(1 g/mole) = 0.5 grams H
Total mass is 7.5g
Subtract C and H to find grams O (7.5 g -(3 grams C + 0.5 grams H) = 4.0 grams O. Molar mass of O is 16 grams/mole.
Moles O = 0.25 O in the sample
The empirical formula is C1H2O1, possibly formalhyde.
Answer:
Explanation:
Hello!
In this case, for the undergoing chemical reaction at equilibrium:
Which means that pressure-based equilibrium constant is computed via the following equilibrium expression:
Thus, by plugging in the given pressures at equilibrium, the required Kp turns out:
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Answer:
See explanation
Explanation:
The reaction with and will add <u>two "OH" groups to the molecule.</u> In the reaction (figure 1) we can see the different structures for the alkenes. In the <u>Z alkene (cis)</u> we have the 2 methyl groups on the same side. In the <u>E alkene (trans)</u> the 2 methyl groups are placed on opposite sides. In the products, all the "<u>OH" groups are placed at the top</u>. This indicates that the addition of the hydroxyl groups is "syn". In the syn reactions, all the groups are bonded on the <u>same side</u> therefore we will have a <u>stereospecific reaction</u>.
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