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trasher [3.6K]
3 years ago
5

Calculate the average speed between 6 hours and 9 hours

Chemistry
2 answers:
Dominik [7]3 years ago
8 0

Answer:

60 Miles per Hour

Explanation:

You included no scenario so I will develop a hypothetical that you can reference.

Assuming a car traveled a distance of 450 miles from one place to another in 9 hours with the car travelling 180 of those miles between 6 hours and 9 hours, what was the average speed between those 6 and 9 hours.

The car travelled 180 miles in 6hours - 9 hours.  First find out how many hours this is:

= 9 - 6

= 3 hours

Speed = Distance / Time

= 180 / 3 hours

= 60 miles per hour

lyudmila [28]3 years ago
5 0

Answer:

7.5 hours

Explanation:

avarage speed = min speed + max speed ÷ 2

= 6 + 9 ÷ 2

= 15 ÷ 2

= 7.5

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Calculate molecules in 1dm^3 of oxygen
Archy [21]

Number of molecules in 1 dm³ Oxygen = 2.71 x 10²²

<h3>Further explanation</h3>

Conditions at T 0 ° C and P 1 atm are stated by STP (Standard Temperature and Pressure). At STP, Vm is 22.4 liters/mol.

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\tt \dfrac{1}{22.4}=0.045`mol

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n=mol=0.045

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\tt N=n\times No\\\\N=0.045\times 6.02\times 10^{23}\\\\N=2.71\times 10^{22}

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3 years ago
In the 1 H NMR spectrum of chloroethane the methylene group is split into a quartet by the α and β nuclear spins of the protons
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