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makkiz [27]
4 years ago
7

Scientists are often interested in knowing the

Chemistry
2 answers:
valkas [14]4 years ago
8 0

Answer:

0.004993 mols

Explanation:

answer on Edg :)

Lady bird [3.3K]4 years ago
4 0

Answer:0.004993 mols

Explanation:

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A sample of gas in a closed container at a
Paladinen [302]

Answer:

8.07 atm

Explanation:

Use Gay-Lussac's law and rearrange forumula

Change C to K

- Hope that helps! Please let me know if you need further explanation.

5 0
3 years ago
Question 8 Lithium is a solid phase of lithium still unknown to science. The only difference between it and ordinary lithium is
trapecia [35]

Answer:

the density of lithium will be equal to: 0.582 g/cm^3

Explanation:

We have the following data:

a = 430 pm = 4.3x10^-8 cm

molar mass of lithium MM = 6.97 g/mol

Since the cubic cell of lithium is cubic centered in the face, its value of Z will be equal to 4

Avogadro´s number AN = 6.022x10^23 particles/mol

using the following formula we will calculate the density of lithium:

d = (Z*MM)/(a^3*AN) = (4*6.97)/((4.3x10^-8)^3*(6.022x10^23)) = 0.582 g/cm^3

7 0
3 years ago
What would be the volume of mercury sample that has a mass of 52.757 g? The density of mercury is 12.5g / mL .
frozen [14]

Answer:

Explanation:

Divide the mass by the density and the units of grams will cancel so youll end up with mL.

(52.757g)/(12.5g/mL) = 4.2mL

5 0
3 years ago
a sample of substance has a volume of 60.5 ml and a density of 1.20g/ml. what is the mass of the sample?
Sliva [168]

The mass of a sample of substance with a volume of 60.5 ml and a density of 1.20g/ml is 72.6 g.

Density, denoted as ρ, is a physical property of a material which is defined as the ratio between mass and volume or mass per unit volume. It is a measure of how much "stuff" or compact an object has in a unit volume. The more dense a substance is, the heavier it feels for its size.

To find the density, use the formula given by:

ρ = \frac{m}{v}

where

ρ = density

m = mass

v = volume

Using the same formula, we can transform it to solve for mass, if the volume and density are given.

ρ = \frac{m}{v}

m = ρv

Putting the values in,

m = 1.20g/ml x 60.5 ml

m = 72.6 g

Hence, the mass of a sample of substance with a volume of 60.5 ml and a density of 1.20g/ml is 72.6 g.

To know more about density, visit brainly.com/question/6838128.

#SPJ4

6 0
2 years ago
I need help with all of these questions
mafiozo [28]
Number five is decrease
7 0
4 years ago
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