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Romashka [77]
3 years ago
15

PLEASE HELP!!!

Chemistry
2 answers:
IrinaVladis [17]3 years ago
6 0
Hi the answer is 100x I hope that helps
cestrela7 [59]3 years ago
4 0

Answer:

Magnifying power = 25

Explanation:

Magnification power (M) of a telescope is a measure of the extent to which it enlarges the object under view. It given in terms of the ratio of the focal length of the telescope objective to that of the eyepiece

M = \frac{objective\ focal\ length}{eyepiece\ focal\ length}-----(1)

The f/ratio measures the light gathering power of a lens. It is expressed in terms of the focal length of the lens divided by its diameter.

f/ratio = \frac{focal\ length}{diameter} ------(2)

It is given that:

eyepiece focal length = 2-inch

f/ratio = 10

Diameter of the objective = 5-inch

Based on eq(2), the focal length of the objective would be:

focal\ length = f/ratio * diameter = 10*5 = 50\ inches

Based on eq(1), the magnifying power would be:

M = \frac{50}{2} = 25

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<h3>What is a Percent yield</h3>

A percent yield of a substance measures the amount of the substance actually obtained as a percentage ratio of expected yield.

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From the data given:

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40 % of 1 m^3 = 0.4 m^3

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Percentage mass of aluminium in aluminium oxide = 54/102 × 100

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Actual yield of aluminium = 419.81 kg

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Therefore, mass of aluminium obtained from 1 m^3 of bauxite is 419810 g

Learn more about percent yield at: brainly.com/question/8638404

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