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3 years ago

0.836 m

Chemistry

1 answer:

Nataly_w [17]3 years ago

6 0

The force exerted on the Kite is 49.6 N.

<u>Explanation:</u>

Force is nothing but the product of pressure exerted by the wind on the kite and the area of the kite.

F = P × A

Where,

F is the Force in Newton = ?

P is the Pressure = 113 Pa = 113 N/m²

A is the Area of the Kite

A = 0.836 m × 0.525 m = 0.4389 m²

Now, we can find the force as,

F = 113 N/m² × 0.4389 m²

= 49.6 N [ ∵ In the units, m² gets cancelled]

So the force exerted on the Kite is 49.6 N.

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3 years ago

When magnesium reacts with hydrochloric acid, hydrogen gas is formed: 2HCl + Mg → H2 + MgCl2. What is the volume of hydrogen pro

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Answer:- C. 16.4 L

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From this equation, there is 2:1 mol ratio between HCl and hydrogen gas. First of all we calculate the moles of hydrogen gas from given grams of HCl using stoichiometry and then the volume of hydrogen gas could be calculated using ideal gas law equation, PV = nRT.

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The calculations are shown below:

$49.0gHCl(\frac{1molHCl}{36.458gHCl})(\frac{1molH_2}{2molHCl})$

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n = 0.672 mol

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3 years ago