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Gnom [1K]
3 years ago
11

A parachute works because the canvas of the parachute is acted upon by

Chemistry
1 answer:
11111nata11111 [884]3 years ago
8 0

Answer:

A parachute works because the canvas of the parachute is acted upon by inertia.

Explanation:

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What would happen to the rate of a reaction with rate law rate = k [NO]2[Hz] if
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Us<br> What is the percent of O in<br> Cr2O3?<br> (Cr = 52.00 amu, O = 16.00 amu)<br> [? ]%
Gekata [30.6K]

The percent of O in  Cr₂O₃ : 31.58%

<h3>Further explanation</h3>

Given

Cr = 52.00 amu, O = 16.00 amu

Required

The percent of O

Solution

MW Cr₂O₃ = 2 x Ar Cr + 3 x Ar O

MW Cr₂O₃ = 2.52+3.16

MW Cr₂O₃ =152 amu

\tt \%O=\dfrac{3.Ar~O}{MW~Cr_2O_3}\times 100\%\\\\\%O=\dfrac{3.16}{152}\times 100\%\\\\\%O=31.58\%

8 0
3 years ago
If 2 moles of salt is dissolved to form 1 liter of solution, what is the molarity of the solution?
Semenov [28]

Answer:

2M

Explanation:

Molarity refers to the molar concentration of a solution. It can be calculated by using the formula as follows:

Molarity (M) = number of moles (n) ÷ volume (V)

Based on the information provided in this question, 2 moles of salt is dissolved to form 1 liter of solution. This means that n = 2mol, V = 1L

Molarity = n/V

Molarity = 2/1

Molarity = 2M

8 0
2 years ago
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