Mol of HBr = mass/Mr = 117/(1+80) = 1.444
From equation, 2 moles hydrogen bromide reacts with 1 mole of barium hydroxide.... So 1.444 moles of hydrogen bromide react with (1.444/2) = 0.722 moles of barium hydroxide.
Answer:
D). Much lower than
Explanation:
When a ketone and its enol are in equilibrium, under most conditions the concentration of the enol is <u>Much lower than</u> the concentration of the ketone
because :
Carbon- oxygen bond is more stable(stronger) than Carbon-Carbon Bond
Keto - enol tautomerism is :
Ketone has C=O and enol has C=C
C=O bond energy is 745 kJ/mol
C=C bond energy is 614 kJ/mol
<span>The s sublevel has just one orbital, so can contain 2 electrons max. The p sublevel has 3 orbitals, so can contain 6 electrons max. The d sublevel has 5 orbitals, so can contain 10 electrons max. And the 4 sublevel has 7 orbitals, so can contain 14 electrons max.
So, having this in mind, 10 electrons in total can be contained in the 4d sublevel.
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0 degrees Celsius, 32 degrees Fahrenheit. So the answer is a
