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4 years ago

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What is an Atomic structure ?

1 answer:

Margaret [11]4 years ago

4 0

Answer: The structure of an atom, theoretically consisting of a positively charged nucleus surrounded and neutralized by negatively charged electrons revolving in orbits at varying distances from the nucleus, the constitution of the nucleus and the arrangement of the electrons differing with various chemical elements.

:) I hope this helped! :)

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B. from 52 moles of nitric acid, how many moles of silver nitrate will be produced?

IceJOKER [234]

Answer:

39 mol AgNO3

Explanation:

We have the equation 4HNO3 + 3Ag -----> 3AgNO3 + NO + 2H2O

We want to calculate the number of silver nitrate (AgNO3) moles that would be produced from 52 moles of nitric acid ( HNO3 )

We can calculate this by using mole ratio as well as dimensional analysis.

The mole ratio of Silver nitrate to nitric acid based on the balanced equation is 3AgNO3:4HNO3.

Using this we can create a table: The table is attached.

Breakdown of the table.

The moles of nitric acid cancel out and we multiply 52 by 3/4 to get 39 moles of Silver nitrate.

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3 years ago

Name three places plants store energy

Pie

Im 76% sure there is only one which is the Vacuoles

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3 years ago

Mass of NaOH = 0.2 <br> Volume of solution 500 ml

Yuliya22 [10]

Density will be mass/volume= 0.2/500 = 0.0004

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3 years ago

What explains the fact that no machine is 100 percent efficient?

nydimaria [60]

Because some machine might not work and would give you the wrong answer

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3 years ago

The volume, in liters, occupied by 2.50 moles of N2 gas.<br><br><br> calculate at STP

kondaur [170]

Answer: The volume occupied by 2.50 moles of $N_2$ gas at STP is 56.0L

Explanation:

According to ideal gas equation:

$PV=nRT$

P = pressure of gas = 1 atm (at STP)

V = Volume of gas = ?

n = number of moles = 2.50

R = gas constant = $0.0821Latm/Kmol$

T =temperature = $273K$ (at STP)

$V=\frac{nRT}{P}$

$V=\frac{2.50mol\times 0.0821Latm/K mol\times 273K}{1atm}=56.0L$

Thus the volume occupied by 2.50 moles of $N_2$ gas at STP is 56.0L

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3 years ago