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jek_recluse [69]
3 years ago
7

Name this compound Cr2(CO3)3

Chemistry
1 answer:
kiruha [24]3 years ago
5 0

Answer:

Molecular Weight

Explanation:

Chromium(III) Carbonate Cr2(CO3)3 Molecular Weight -- EndMemo.

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Chemistry help on a Lab I did ?
lisov135 [29]
<span>Well #        # Drops of Iron Sulfate             # Drops of Sodium Hydroxide
</span><span>  A1         5     45
  A2        10    40
  A3        15     35
  A4        20     30
  A5        25     25
  A6        30     20
  B1        35     15
  B2        40     10
  B3        45      5
</span>
<span>that's for B, because it says "Iron Sulfate".
which is this equation: FeSO4 (aq) + 2NaOH (aq)  Fe(OH)2 (s) + Na2SO4 (aq)
</span>
<span>FeSO4 (aq) + 2NaOH (aq)  Fe(OH)2 (s) + Na2SO4 (aq)
ratio of FeSO4:NaOH is 1:2,
so you need to moles of NaOH for every mole of FeSO4.
</span>
<span>A1-A6 had precipitate, though less ppt every time. This corresponds to the decrease in the number of NaOH drops At A2 10/1:40/2 the stoichiometric ratio is equal, so you should've seen the post ppt present. But looking at the picture it doesn't look right. I think you might've labelled them wrong, or there is an error somewhere. This fits micro-plate A better.</span><span>
</span>
8 0
3 years ago
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