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Alex787 [66]
3 years ago
7

When carbon is burned in air, it reacts with oxygen to form carbon dioxide. when 18.0 g of carbon were burned in the presence of

62.3 g of oxygen, 14.3 g of oxygen remained unreacted. what mass of carbon dioxide was produced?
Chemistry
1 answer:
zavuch27 [327]3 years ago
7 0
C + O2 --> CO2

18g C = 18/12.01 = 1.49 moles (Limiting Reagent) 
62.3-14.3 = 48g oxygen that reacted 
48g O = 3 moles 
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Answer:

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Explanation:

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What was the main purpose of the opportunity rover?
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Answer:

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The average dosage of oxcarbazepine for an epileptic child between the ages of 4 and 16 is 9.00 mgmg per 1 kgkg of body weight (
Helga [31]

Answer:

The answer to your question is 3 ml

Explanation:

Data

Dosage = 9.0 mg/ kg

Child's weight = 42.9 pounds

Suspension = 60 mg/ml

milliliters = ?

Process

1.- Convert the weight to kg

                         1 pound ------------------- 0.453 kg

                     42.9 pounds ---------------  x

                           x = (42.9 x 0.453) / 1

                           x = 19.43 kg

2.- Calculate the milligrams the child needs

                         1 kg of weight ------------ 9 mg

                       19.43 kg ----------------------  x

                            x = (19.43 x 9) / 1

                            x = 174.87 mg of oxcarbazepine

3.- Calculate the milliliters needed

                          60 mg of suspension ------------- 1 milliliters

                        174.87 mg                     --------------  x

                                 x = (174.87 x 1) / 60

                                 x = 2.9 ml ≈ 3 ml

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cell wall: f

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