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suter [353]
3 years ago
14

Calculate 1.23 m x 0.89 m and give your answer with the correct number of significant figures?

Chemistry
1 answer:
Marizza181 [45]3 years ago
4 0

Answer:

1.1m that what I got and it said it was right

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How are protons and neutrons found?
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Electrons are found in shells or orbitals that surround the nucleus of an atom. Protons and neutrons are found in the nucleus. They group together in the center of the atom.

Explanation:

-----

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3 years ago
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How many mL will a 0.205 mole sample of He occupy at 3.00 atm and 200 K? Report your answer to the nearest mL.
Tcecarenko [31]

1.1214 mL will a 0.205-mole sample of He occupy at 3.00 atm and 200 K.

<h3>What is an ideal gas equation?</h3>

The ideal gas law (PV = nRT) relates the macroscopic properties of ideal gases. An ideal gas is a gas in which the particles (a) do not attract or repel one another and (b) take up no space (have no volume).

Using equation PV=nRT, where n is the moles and R is the gas constant. Then divide the given mass by the number of moles to get molar mass.

Given data:

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V= ?

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R= 0.082057338 \;L \;atm \;K^{-1}mol^{-1}

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Putting value in the given equation:

\frac{nRT}{P} =V

V= \frac{0.205 \;mole\;0.082057338 \;L \;atm \;K^{-1}mol^{-1} X 200}{3 \;atm}

V= 1.1214 mL

Learn more about the ideal gas here:

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2 years ago
Ron is writing an essay on the process of photosynthesis.On which of the points should he elaborate
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A saline solution similar to that used for intravenous drips is made by dissolving 0.45 g sodium chloride in 50.00 g water. Whic
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