Answer:
A compressed gas cylinder is filled with 5270 g of argon gas.
The pressure inside the cylinder is 2050 psi at a temperature of 18C.
The valve to the cylinder is opened and gas escapes until the pressure inside the cylinder is 650. psi and the temperature are 26 C.
How many grams of argon remains in the cylinder?
Explanation:
First, calculate the volume of argon gas that is present in the gas cylinder by using the ideal gas equation:
Mass of Ar gas is --- 5270g.
The number of moles of Ar gas:

Temperature T=(18+273)K=291K
Pressure P=2050psi

Volume V=?

Using this volume V=22.6L
Pressure=650psi=44.2atm
Temperature T= (26+273)K=299K
calculate number of moles "n" value:

Mass of 40.7mol of Ar gas:

Answer:
The mass of Ar gas becomes 1625.8g.
Answer:
Drawings of Lewis structure Are attached for your elements
Explanation:
Please open the attachment
Answer:
15. 2.66 moles .
16. 2.09L.
Explanation:
Molarity of a solution is simply defined as the mole of solute per unit litre of the solvent. Mathematically, it is represented as:
Molarity = mole /Volume.
With the above formula, let us answer the questions given above
15. Data obtained from the question include the following:
Volume of solution = 1.4L
Molarity = 1.9M
Mole of solute =.?
Molarity = mole /Volume
1.9 = mole / 1.4
Cross multiply
Mole = 1.9 x 1.4
Mole = 2.66 moles
Therefore, the mole of the solute present in the solution is 2.66 moles.
16. Data obtained from the question include the following:
Mole of solute = 0.46 mole
Molarity = 0.22M
Volume of solvent (water) =.?
Molarity = mole /Volume
0.22 = 0.46/Volume
Cross multiply
0.22 x Volume = 0.46
Divide both side 0.22
Volume = 0.46/0.22
Volume = 2.09L
Therefore, 2.09L of water is required.
Answer: acetone is a ketone and not an aldehyde. Therefore it's false
Explanation:
Acetone is of structure CH3-CO-CH3
which makes it a ketone.
Both aldehyde and ketone have a carbonyl group but there is difference between aldehyde and ketone.
Aldehydes have a general formula R-CHO
where R is a methyl group including H atom, and CHO is the functional group.
While
Ketone have the general formula R-CO-Ri
where R and Ri are methyl groups excluding H atom, and CO is the functional group.
Hint: ketones usually end with the suffix "one" as in acetone.
Answer:
you need to send us the figure
Explanation: