3 years ago

Use the dichotomous key to identify these plant leaves.

1 answer:

6 0

There’s not a picture of a dichotomous key

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marusya05 [52]

V=2.90 L
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yKpoI14uk [10]

Answer:

5.36 grams the mass in grams of zinc nitrate the chemist has added to the flask.

Explanation:

$Molarity=\frac{\text{Moles of solute}}{\text{Volume of the solution (L)}}$

Moles of zinc nitrate = n

Volume of the solution = 135.0 mL = 0.1350 L

Molarity of the solution = 0.21 M

$0.21 M=\frac{n}{0.1350 L}$

$n=0.21M\times 0.1350 L=0.02835 mol$

Mass of 0.02835 moles of zinc nitrate:

0.02835 mol × 189 g/mol = 5.358 g ≈ 5.36 g

5.36 grams the mass in grams of zinc nitrate the chemist has added to the flask.

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dsp73

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vichka [17]

Distilled water is touched by man so it would probably be close to 300 degrees farenheit.......maybe.

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3 years ago