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jek_recluse [69]
3 years ago
6

1. An electric iron has a

Chemistry
1 answer:
VLD [36.1K]3 years ago
4 0

Explanation:

a) E = P × t

E = 750 × 1 s = 750 J

b) E = P × t

E = 750 × 3s = 2250 J

c) E = P × t

1500 = 750 × t

t = 1500/750

t = 2 s

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A chemist prepares a solution of aluminum sulfate Al2SO43 by weighing out 101.g of aluminum sulfate into a 200.mL volumetric fla
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Answer:

50.5 g/dL

Explanation:

From the question given above, the following data were obtained:

Mass of Al₂(SO₄)₃ = 101 g

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Next, we shall convert 200 mL to decilitre (dL).

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1 mL = 0.01 dL

Therefore,

200 mL = 200 mL / 1 mL × 0.01 dL

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Therefore, 200 mL is equivalent to 2 dL.

Finally, we shall determine the concentration of the solution in g/dL as follow:

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Concentration of solution (g/dL) =?

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= 50.5 g/dL

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B is the correct answer
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