Twa kɔ nsɛm atitiriw so
Log in
Sign up for FREE
arrow_back
Laabri

Copy of Molar Conversion Videos (5/28/2026)

star
star
star
star
star
Last updated about 1 month ago
22 Nsɛmmisa

Text
00:00
keyboard_arrow_down

He will talk and demonstrate something called significant figures (sigfigs). This is something we will discuss on a later date. Do not worry yourself too much with it for now.

Question 1
04:47
keyboard_arrow_down
1
Question 2
05:12
keyboard_arrow_down
1
Question 3
05:28
keyboard_arrow_down
1
Question 4
07:56
keyboard_arrow_down
1
Question 5
10:48
keyboard_arrow_down
1
Question 6
11:22
keyboard_arrow_down
1
Question 7
12:41
keyboard_arrow_down
1
Question 8
12:55
keyboard_arrow_down
1
Question 9
13:13
keyboard_arrow_down
1
Question 10
13:45
keyboard_arrow_down
1
Question 11
00:59
keyboard_arrow_down
1
Question 12
01:01
keyboard_arrow_down
1
Question 13
01:58
keyboard_arrow_down
1
Question 14
02:12
keyboard_arrow_down
1
Question 15
02:57
keyboard_arrow_down
1
Question 16
04:38
keyboard_arrow_down
1
Question 17
04:52
keyboard_arrow_down
1
Question 18
05:23
keyboard_arrow_down
1
Question 19
06:59
keyboard_arrow_down
1
Question 20
08:35
keyboard_arrow_down
1
Question 21
09:33
keyboard_arrow_down
1
Question 22
10:29
keyboard_arrow_down
1
Asemmisa {{asɛmmisaAhyɛnsode}}
1.

How many atoms are in 5.5 dozen of atoms?

Asemmisa {{asɛmmisaAhyɛnsode}}
2.

Why do you think scientific notation (like this - 1.3 x 1014) is used?

Asemmisa {{asɛmmisaAhyɛnsode}}
3.

Solve for the following:

a.) How many atoms are in 2.6 x 105 moles of sodium?

b.) How many molecules are in 455.3 moles of NaCl?

Asemmisa {{asɛmmisaAhyɛnsode}}
4.

Why was the below conversion factor chosen?

Asemmisa {{asɛmmisaAhyɛnsode}}
5.

Which of the following would be a correct set up for solving: "How many moles is in 4.6 x 1024 sulfur atoms"?

Asemmisa {{asɛmmisaAhyɛnsode}}
6.

How many moles is in 4.6 x 1024 sulfur atoms?

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

Which conversion factor should you choose?

Asemmisa {{asɛmmisaAhyɛnsode}}
8.

Why was that conversion factor used (question 6)?

Asemmisa {{asɛmmisaAhyɛnsode}}
9.

What type of math would you be using to solve for this question?

Asemmisa {{asɛmmisaAhyɛnsode}}
10.

Solve for the following:

a.) How many moles are there in 2.23 x 1045 atoms of Mg?

b.) How many moles are in 1.11 x 102 molecules of MgCl2?

Asemmisa {{asɛmmisaAhyɛnsode}}
11.

Molar mass has units of?

Asemmisa {{asɛmmisaAhyɛnsode}}
12.

Where did we find the molar mass of an element?

Asemmisa {{asɛmmisaAhyɛnsode}}
13.

How would this problem be solved?

Asemmisa {{asɛmmisaAhyɛnsode}}
14.

What is the mass of 4.30 moles of Al (do not tell me what he says)?

Asemmisa {{asɛmmisaAhyɛnsode}}
15.

When converting from moles to grams, we must the by the .

Asemmisa {{asɛmmisaAhyɛnsode}}
16.

Which conversion factor should be used?

Asemmisa {{asɛmmisaAhyɛnsode}}
17.

Why do we use the correct conversion factor from questions 14?

Asemmisa {{asɛmmisaAhyɛnsode}}
18.

Use the periodic table below to help you.

a.) What is the molar mass of carbon (C)?

b.) What is the mass of 3.65 moles of carbon?

c.) What is the molar mass of gold (Au)?

d.) What is the mass of 22.6 moles of gold?

Asemmisa {{asɛmmisaAhyɛnsode}}
19.

To find the molar mass of NaCl, you would... (fill in the missing information).

1( ) 1( ) =

Asemmisa {{asɛmmisaAhyɛnsode}}
20.

When converting from mass in grams to moles, you must the by the .

Asemmisa {{asɛmmisaAhyɛnsode}}
21.

Which conversion factor should you use, here?

Asemmisa {{asɛmmisaAhyɛnsode}}
22.

Use the periodic table below to help you with the following:

a.) What is the molar mass of HCl?

b.) How many moles are in 55.2 g HCl? (Round to the nearest thousandth - three numbers to the right of the decimal - example: 0.555).

c.) What is the molar mass of MgCl2?

d.) How many moles are in 212.2 g MgCl2? (Round to the nearest thousandth - three numbers to the right of the decimal - example: 0.555).