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Kay [80]
3 years ago
11

Upon decomposition, one sample of magnesium fluoride produced 2.15 kg of magnesium and 3.36 kg of fluorine. A second sample prod

uced 1.00 kg of magnesium. How much fluorine (in grams) did the second sample produce?
Chemistry
1 answer:
Eva8 [605]3 years ago
8 0

Answer:

The second sample will produce 1563 grams of fluorine (F2)

Explanation:

The reaction will be MgF2 → Mg + F2

The stoichiometry ratio of MgF2 and F2 is 1 : 1.

That means for 1 mole of MgF2 consumed there is 1 mole of F2 produced.

The first sample produces 2.15 kg of magnesium and 3.36 kg of fluorine

The second sample produced 1 kg of magnesium and x kg of fluorine

This we can show in the following equation =

2.15kg / 3.36 kg = 1kg / x

2.15/3.36 = 0.63988

0.63988 = 1/ x

x= 1/0.63988  = 1.563 kg

1.563kg = 1563 grams

The second sample will produce 1563 grams of fluorine (F2)

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Water vapor is not usually seen.
xeze [42]

Answer:

True

Explanation:

Water vapor is totally invisible.

Without it, there would be no clouds or rain or snow, since all of these require water vapor in order to form. All of the water vapor that evaporates from the surface of the Earth eventually returns as precipitation - rain or snow.

Helped by the <u><em>One</em></u> & <u><em>Only</em></u> <u><em>#QUEEN</em></u> aka <u><em>#DRIPPQUEENMO </em></u>

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5 0
3 years ago
Match the separation techniques with the correct descriptions.
nordsb [41]

Answer:

Explanation:

1 = A

Sublimation is the process where by a sample is heated to pass through solid phase to gaseous phase without the intermittent liquid phase. Example of substance that sublime is camphor.

2 = D

Decantantion

5 = F

Filtration is the process a liquid from solid using a porous material. This technique requires a set up and a good porous material eg filter paper.

6 = B

This technique is to separate a mixture of solids by converting them from solid phase to gaseous phase since they sublime.

3 = deposition.

The answer isn't in the option but deposition is the process of substance in gaseous phase to change into solid state without passing through liquid phase. Deposition is the opposite of sublimation.

4 = E

4 0
3 years ago
The 500kg concrete culvert has a mean radius of 0.5m. part a if the truck has an acceleration of 3m/s2, determine the culvert's
jarptica [38.1K]

<u>Given: </u>

Radius of culvert, r = 0.5 m

Tangential acceleration of the truck, a = 3 m/s2

<u>To determine:</u>

The angular acceleration, α

<u>Explanation:</u>

The tangential acceleration is related to the angular acceleration through the radius as:

a = rα

α = a/r = 3 ms⁻²/0.5 m = 6 s⁻²

Ans: The angular acceleration is 6 s⁻²


6 0
3 years ago
Show how to work out...Calculate the mass in grams of 3.50 x 1025 atoms of lithium. Answer: 404g Li​
ruslelena [56]
Take your number of atoms and divide by Avrogadros number, then multiply by molar mass of lithium to get your final answer

4 0
3 years ago
there are 3.0 x 10^22 molecules of sucrose in a sample. how many grams of sucrose is this? The molar mass of C12H22O11 is about
gladu [14]

The amount of sucrose in the sample would be 17 grams

<h3>Number of molecules of substances</h3>

There are 6.022 x 10^{23} molecules in 1 mole of every substance.

3.0 x 10^2^2 molecules will, therefore, be:

                    1 x 3.0 x 10^2^2/6.022 x 10^{23} = 0.0498 moles

Mass of 0.0498 moles sucrose = 0.0498 x 342 = 17 grams

More on the number of molecules of substances can be found here: brainly.com/question/19481036

#SPJ1

 

5 0
2 years ago
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