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Svet_ta [14]
2 years ago
5

What is speed? If you walk 3 kilometers in 30 minutes, what is your average speed in kilometers per hour? Compare and contrast i

nstantaneous and average speed. What distance will a truck travel in 3 hours at an average speed of 50 miles per hour?
Chemistry
1 answer:
Mrrafil [7]2 years ago
3 0

Answer:

See explanation

Explanation:

distance = 3 kilometres

time = 30 minutes or 0.5 hours

speed = distance/time = 3/0.5 = 6 Kmhr-1

Average speed is given by total distance covered divided by the total time taken while the instantaneous speed is the speed of an object at a particular instant or moment in time. Average speed refers to the whole journey while instantaneous speed refers to a particular point or instant in the journey.

distance= x

time = 3 hours

speed = 50 miles per hour

speed = distance/time

distance = speed * time

distance = 3 * 50

distance = 150 miles

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Answer:

Explanation:

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mass of hydrogen ( H ) in 3.363 g of H₂O = 2  x 3.363 / 18

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Rest of 6.165 g of sample is oxygen .

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Ratio of C  , H , O in the sample

2.8 : .373 : 2.992

C: H : O : : 2.8 : .373 : 2.992

Ratio of moles

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C: H : O : : .2333 : .373 : .187

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C₅H₈O₄

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Molecular formula = C₅H₈O₄.

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