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Montano1993 [528]
3 years ago
15

How many atoms are in 3.05 grams of copper?

Chemistry
1 answer:
vfiekz [6]3 years ago
5 0

6.02 x10^23 atom  

3.5g x 1mol/63.55g Cu x 6.02 x 10^23/ 1mol=

3.32 x 10^22 atoms

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I think this is how you draw it, but I'm not entirely sure.

Explanation:

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B. Describe hydrogen bonding. (1 point)
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Describe what occurs at mid-ocean ridges?
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4 years ago
Dawson decided he would be Dawson and play with a flammable gas. He needs to know how many moles of gas it takes to occupy 210 L
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According to ideal gas equation, 0.5186 moles of gas are required to occupy 210 L at a pressure of 5.4 atmospheres and a temperature of 263 K.

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

The ideal gas equation is a equation which is applicable in a hypothetical state of an ideal gas.It is a combination of Boyle's law, Charle's law,Avogadro's law and Gay-Lussac's law . It is given as, PV=nRT where R= gas constant whose value is 8.314.The law has several limitations.

Substituting the given values in the given equation, n= 5.4×210/8.314×263=0.5186 moles

Thus there are 0.5186 moles occupying  210 L at a pressure of 5.4 atmospheres and a temperature of 263 K.

Learn more about ideal gas equation,here:

brainly.com/question/28837405

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4 0
1 year ago
Acetone (C3H6O) is a liquid that is used to dissolve substances that do not mix with water. The boiling point of acetone is 56°C
serg [7]

Answer : Acetone start to condense below 56 °C

Explanation :

Boiling point : It is defined as the temperature at which vapor pressure of the liquid is equal to the atmospheric pressure of the liquid.

That means, the temperature at which the liquid changes into gas.

Condensation point : It is defined as the temperature at which the phase changes from a gaseous to liquid.

As per question, the boiling point of acetone is 56 °C. As, the gas is at 100 °C then the condensation of acetone will take place at 56 °C but below this temperature acetone exists in a liquid phase.

Hence, below 56 °C acetone start to condense.

8 0
3 years ago
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