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gogolik [260]
3 years ago
13

I need help with everything

Chemistry
1 answer:
maria [59]3 years ago
6 0
For the hypothesis put what you think will happen
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How many double bonds does CCL2H2 have?
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None. Both chlorines and both hydrogens are single-bonded to the central carbon atom; the molecule is comprised of four single bonds and no double bonds.

Hope this helps!
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2 years ago
HURRYYY !!!! What radioactive isotope produces Aluminum-13 by beta decay
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I DONT KNOW SORRY

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What is catalyst? Write its types.​
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3 years ago
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You wish to prepare a buffer consisting of acetic acid and sodium acetate with a total acetic acetate plus acetate concentration
vovangra [49]

<u>Ans: Acetic acid = 90.3 mM and Sodium acetate = 160 mM</u>

Given:

Acetic Acid/Sodium Acetate buffer of pH = 5.0

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pKa(acetic acid) = 4.75

Based on Henderson-Hasselbalch equation

pH = pKa + log[A-]/[HA]

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From (1) and (2)

[HA] + 1.77[HA] = 250 mM

[HA] = 250/2.77 = 90.25 mM

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7 0
3 years ago
Why is the weight of an object more on Earth than on the Moon?
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As weight = mass × g so we have more weights on earth than on moon. Explanation: This is because gravitational force is immediately proportional to the mass of an object. Greater the mass, greater will be the gravitational force exerted by it and thus, more will be our weight
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