All categories

4 years ago

Zelda noticed a puddle outside her front door. She saw that the puddle got smaller every day, mil the

Chemistry

1 answer:

Tcecarenko [31]4 years ago

3 0

Explanation:

to set 1 container inside, without air movement. 1 outside in that location. compare the 2 containers to see which container has less or more fluid...

You might be interested in

A 9.000L tank at 27.0°C is filled with 5.29g of sulfur tetrafluoride gas and 15.6g of carbon dioxide gas. You can assume both ga

Colt1911 [192]

Answer:

Mole fraction SF₄: 0,121

Mole fraction CO₂: 0,879

Partial pressure SF₄: 0,134 atm

Partial pressure CO₂: 0,968 atm

Total pressure: 1,102 atm

Explanation:

The moles of sulfur tetrafluoride gas and carbon dioxide gas are:

5,29g SF₄× $\frac{1mol}{108,07g}$ = 0,0489 moles SF₄

15,6 CO₂× $\frac{1mol}{44,01g}$ = 0,354 moles CO₂

Mole fraction SF₄:

$X_{SF_{4}} = \frac{0,0489mol}{0,0489+0,354}$ = 0,121

Mole fraction CO₂:

$X_{CO_{2}} = \frac{0,354mol}{0,0489+0,354}$ = 0,879

It is possible to obtain partial pressure of both gases with moles of each gas using:

P = nRT/V

Where n are respective moles, R is gas constant (0,082atmL/molK), T is teemperature (27°C=300,15K), V is volume (9,0000L)

Replacing:

Partial pressure SF₄: 0,134atm

Partial pressure CO₂: 0,968atm

Now, the sum of the partial pressures is the total pressure in the tank, that means:

Total pressure: 0,134atm + 0,968atm = 1,102atm

I hope it helps!

6 0

3 years ago

Briefly discuss interpretations of your observations and results. Discuss how your observations illustrated LeChatelier's princi

Dvinal [7]

Answer:

Le Chatelier's principle can be applied in explaining the results

Explanation:

According to Le Chatelier's principle, when a constraint such as a change in concentration in this case is imposed on a chemical system in equilibrium, the system will adjust itself in such a way as to annul the constraint imposed.

Hence, when the color of the solution was more like that of the control, the reaction would shift towards the left. Similarly, when the color was more like it was towards the reactant, the reaction would shift towards the right.

If we were to prepare calcium oxalate, we should prepare it in a base solution. This is because when the base was added to calcium oxalate, it did not form any precipitate but when an acid was added to the calcium oxalate, it formed a precipitate.

4 0

3 years ago

True or False (+2 Points Possible each): Write true if the statement is true. If false, replace

lesya [120]

Answer:

2. Molten rock rises in Earth's mantle caused by (pressure)

Explanation:

i think i just had a similar question

4 0

3 years ago

Why did the big bang not produce a significant proportion of elements heavier than helium?

Travka [436]

The big bang did not produce a significant proportion of elements heavier than helium because the temperatures and densities present in the early universe were not sufficient to support the fusion of heavier elements.

During the first few minute of the big bang, the universe was composed of mostly hydrogen and helium, with very small amounts of lithium and beryllium. As the universe expanded and cooled, the denser regions of the universe collapsed to form the first stars. Inside these stars, the intense pressure and heat generated by nuclear fusion reactions allowed for the production of heavier elements, such as carbon and oxygen. However, elements heavier than helium, such as iron and nickel, require even higher temperatures and densities to be produced, which can only be found in the cores of supernovae. Therefore, the big bang alone did not produce a significant proportion of elements heavier than helium.

to know more about compounds-

brainly.com/question/12166462

#SPJ4

7 0

1 year ago

asambeis [7]

No, isotopes are versions of elements, where as ions are atoms or molecules.

8 0

2 years ago