2 years ago

A jet airplane flies from St. Louis, Missouri, to Phoenix, Arizona, in 3 hrs. The distance is

Chemistry

1 answer:

Degger [83]2 years ago

3 0

Answer:

Distance = 1500miles

time taken = 3 hours

speed of plane = distance/time taken = 1500/3= 500milesperhour

Explanation:

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In a laboratory investigation, an HCl(aq) solution with a pH value of 2 is used to determine the molarity of a KOH(aq) solution.

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3 years ago

A solution is made by adding 29.1 mL of concentrated perchloric acid ( 70.5 wt% , density 1.67 g/mL ) to some water in a volumet

Lera25 [3.4K]

Answer:

The concentration of the solution is 1.364 molar.

Explanation:

Volume of perchloric acid = 29.1 mL

Mass of the solution = m

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Mass of perchloric acid in 48.597 solution :

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So, volume of the final solution = 250 mL = 0.250 L (1 mL = 0.001 L)

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The concentration of the solution is 1.364 molar.

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3 years ago