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cupoosta [38]
3 years ago
14

In this equation: FeBr2+K2CO3=Fe2(CO3)2+KBr do I simplify the 2's on iron and the CO3 on the "right side" before continuing or k

eep them and why?
Chemistry
1 answer:
svetlana [45]3 years ago
3 0
Yes simplify. Anybody educated in chemistry can look at the equation and see that you have Fe+2 and CO3-2 combined to make FeCO3. But you don't need the 2s. Always simplify the subscripts.

By the way, the equation is not fully balanced. Check KBr.
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Galina-37 [17]

Answer:

D. 114 g

Explanation:

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aliina [53]

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The organic compound di‑n‑butyl phthalate, C 16 H 22 O 4 ( l ) , C16H22O4(l), is sometimes used as a low‑density ( 1.046 g ⋅ mL
damaskus [11]

Answer:

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Explanation:

You need to use two expressions, one for pressure and the other with the relation of density and height of the column.

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The second expression put a relation between the densities and height of the column so:

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Let's calculate first the relation of density:

d1/d2 = 13.53 / 1.046 = 12.93

Now with the first expression, we can calculate the pressure so:

P = hdg

We have two compounds so,

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From here, we can solve for h2:

h2 = h1*(d1/d2)

replacing:

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1 mmHg is 1 torr, therefore the pressure of the gas in Torr would be 36.63 Torr

8 0
3 years ago
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Mazyrski [523]

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