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Kisachek [45]
3 years ago
14

What element has the following electron configuration?

Chemistry
1 answer:
elixir [45]3 years ago
5 0

Answer:

Arsenic

Explanation:

This is because it has atomic number 33

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How many miles of a gas at 100 c does it take to fill a 1.00 l flask to a pressure of 152kPa
Hatshy [7]

The complete question is as follows: How many moles of a gas at 100 c does it take to fill a 1.00 l flask to a pressure of 152kPa

Answer: There are 0.0489 moles of a gas at 100^{o}C is required to fill a 1.00 l flask to a pressure of 152kPa.

Explanation:

Given: Volume = 1.00 L,    

Pressure = 152 kPa (1 kPa = 1000 Pa) = 152000 Pa

Convert Pa into atm as follows.

1 Pa = 9.86 \times 10^{-6} atm\\152000 Pa = 152000 \times \frac{9.86 \times 10^{-6}atm}{1 Pa}\\= 1.5 atm

Temperature = 100^{o}C = (100 + 273) K = 373 K

Using the ideal gas formula as follows.

PV = nRT

where,

P = pressure

V = volume

n = no. of moles

R = gas constant = 0.0821 L atm/mol K

T = temperature

Substitute the values into above formula as follows.

PV = nRT\\1.5 atm \times 1.0 L = n \times 0.0821 L atm/mol K \times 373 K\\n = \frac{1.5 atm \times 1.0 L}{0.0821 L atm/mol K \times 373 K}\\n = 0.0489 mol

Thus, we can conclude that there are 0.0489 moles of a gas at 100^{o}C is required to fill a 1.00 l flask to a pressure of 152kPa.

5 0
3 years ago
Which drawing is a structural model of C3Hg? ​
Aleks04 [339]

Answer:

The correct option is C

Explanation:

The structural model of C₃H₈ is that of option C.

In Structural model which can also be known as structural formula, the atoms of a molecule or compound are identified by the location of chemical bonds that exists between them. A structural formula is seen to consist of symbols. In this case, the atoms are connected by short lines. These short lines actually represent their chemical bonds. Where one, two, or three lines that  connect each element that make up the compound stands for single, double, or triple bonds, respectively.

5 0
3 years ago
Which of the following is the smallest volume? (2 points)   30 cm3 2,500 mL 25 m3 2.0 x 10-1 L 
aliya0001 [1]
2500mL is the answer
6 0
3 years ago
Which two particles are always found in equal number in neutral atoms
AysviL [449]

Answer:

When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons). The total electric charge of the atom is therefore zero and the atom is said to be neutral.

I hope it helps.

Have a great day.

7 0
3 years ago
Read 2 more answers
Which has a higher electronegativity phosphorus or sodium
Yuliya22 [10]

Answer:

it is phosphorus it has o most 2 times as much  electromagnetically

Explanation:

4 0
3 years ago
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