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2 years ago

I dont know the answer pls help me

Chemistry

1 answer:

Alisiya [41]2 years ago

3 0

Answer:

Unicellular

Explanation:

Unicellular organisms are made up of only a single cell

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A 10-liter container has 2 moles of oxygen at a pressure of 92 kpa. The effective speed (rms) of the oxygen molecules in the gas

bezimeni [28]

The effective speed (rms) of the oxygen gas is 293.68 m/s.

<h3></h3><h3>What is Root-mean-square velocity?</h3>

Root mean square velocity is the square root of the mean of squares of the velocity of individual gas molecules

$v_{rms}=\sqrt[]{\frac{3RT}{M} }$

<em>where </em>R = universal gas constant

M = molar mass of the gas in kg/mol

T = temperature in Kelvin

According to the ideal gas law,

PV = nRT

RT = $\frac{PV}{n}$

Substitute in the rms velocity formula,

$v_{rms} = \sqrt[]{\frac{3PV}{nM} }$

P = 92 kPa, V = 10 L, n = 2 moles and M = 32 x 10⁻³ kg/mol

$v_{rms} = \sqrt[]{\frac{3\times92\times10}{2\times32\times10^-^3} }$

=293.68 m/s

Thus, the effective speed (rms) of O₂ gas is 293.68 m/s.

Learn more about Root-mean-square velocity:

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1 year ago

How would Bohr model show the protons in a carbon atom

MariettaO [177]

Answer:

The Bohr model show the protons in a carbon atom using the model; "Electrons move in fixed orbits around a nucleus of protons and neutrons."

According to Bohr's model of the atoms, the Rutherford model is basically correct. This implies that Bohr model accepts the idea of a nucleus containing nucleons(protons and neutrons).

In addition, the model also postulates that electrons are found in fixed orbits. These fixed orbits are called energy levels or shells.

A graphic description of this is shown in the image attached to this answer.

Learn more: brainly.com/question/3964366

Explanation:

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2 years ago

Do you think that the government should regulate the sale or production of sugary drinks? Explain why or why not.

Fofino [41]

yrufbd brinckerhoff circ six

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2 years ago

The element bromine is a reddish-brown liquid at room temperature, with a density of 3.103g/mL. What is the mass, in grams, of 1

Anastaziya [24]

The element bromine is not a reddish-brown liquid. Liquid is the substance bromine.

M=DV

M=3.103 g/mL * 19.8 mL = 61.44 g

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3 years ago

12.47 g of ammonium nitrate are dissolved in water, then diluted to 250 ml. What is the molarity of the resulting solution?

slega [8]

<h3><u>Answer;</u></h3>

= 0.6224 M

<h3><u>Explanation</u>;</h3>

Molarity is given by the formula;

Molarity = Number of moles/Volume

But moles = mass/Molar mass

Thus;

Moles = 12.47 g/80.043 g/mol

= 0.1556 Moles

Therefore;

Molarity = 0.1556 moles/0.25

6 0

3 years ago

I dont know the answer pls help me​

I dont know the answer pls help me