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e-lub [12.9K]
3 years ago
5

WILL GIVE BRANLIEST!! EASY BUT I WAS TO LAZY TO LEARN!! WILL FOREVER BE GREATFUL!!! WILL GIVE BRANLIEST!! EASY BUT I WAS TO LAZY

TO LEARN!! WILL FOREVER BE GREATFUL!!!
8. How much of a 25ml, closed, container would 5g of gas fill?


A) 15 ml

B) 10 ml

C) 25 ml

D) 20 ml

12. What is the pressure of a gas if 8.04 mol occupies 31.8 L at 308 K?

A) 6.39 atm

B) 5 atm

C) 3 atm

D) 7 atm
Chemistry
1 answer:
postnew [5]3 years ago
8 0

Answer:

The gas will fill the entire 25 mL of the container. Hope this helps

Explanation:

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12.A piece of magnesium is in the shape of a cylinder with a height of 5.62 cm
yaroslaw [1]

Answer:

Density, d = 1.779 g/cm³

Explanation:

The density of a material is given by its mass per unit volume.

Here, height of a piece of magnesium cylinder, h = 5.62 cm

Its diameter, d = 1.34 cm

Radius = 0.67 cm

Volume of he cylinder,

V=\pi r^2 h\\\\\text{Putting the value of r and h, we get :}\\\\V=(\pi \times (0.67)^2\times 5.62)\ cm^3

d=\dfrac{m}{V}\\\\d=\dfrac{14.1\ g}{(\pi \times (0.67)^2\times 5.62)\ cm^3}\\\\d=1.779\ g/cm^3

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3 years ago
A block of aluminum occupies a volume of 15.0 mL and weighs 45 grams.
vladimir2022 [97]
Answer: density equals 3 g/mL

Step by step explanation:

D=m/v
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5 0
3 years ago
What are the first two quantum numbers for the electrons located in subshell 4d?
SCORPION-xisa [38]

Answer:

n = 4, l = 2

Explanation:

The number 4 in 4d is the principal quantum number (n).

The letter d in 4d tells us that we have a d orbital, as determined by the <em>secondary quantum number (l</em>).

The quantum number l tells us the shape of the orbital.

l = 0     s orbital

l = 1      p orbital

l = 2     d orbital

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