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PolarNik [594]
3 years ago
8

Observe: click reset. select the gas collection setup. chemists use this apparatus to collect any gases produced in the reaction

. from the reaction flask, gases travel through a long tube and into a cylinder of water. as gases bubble into the cylinder, the water is displaced (removed) until the cylinder is filled with gas. click play and observe the cylinder. was any gas produced in the reaction? [ ]
Chemistry
1 answer:
Oxana [17]3 years ago
6 0

Hello. Although it is not possible to see the video to which the question refers, we can see, in the question, that water is removed from the cylinder as a gas is added to the same cylinder. So we can see that a gas was produced in the reaction, through the displacement of water, that is, if the water starts to be removed from the cylinder, it is because the reaction is producing a gas. If the gas is not produced, water will not come out of the cylinder.

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8
love history [14]

Answer : The molar concentration of sucrose in the tea is, 0.0549 M

Explanation : Given,

Mass of sucrose = 3.765 g

Volume of solution = 0.200 L

Molar mass of sucrose  = 342.3 g/mole

Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.

Formula used :

\text{Molarity}=\frac{\text{Mass of sucrose}}{\text{Molar mass of sucrose}\times \text{Volume of solution (in L)}}

Now put all the given values in this formula, we get:

\text{Molarity}=\frac{3.765g}{342.3g/mole\times 0.200L}=0.0549mole/L=0.0549M

Therefore, the molar concentration of sucrose in the tea is, 0.0549 M

7 0
3 years ago
What is the effect of pressure on boiling point??? 1 mark answer plsss
d1i1m1o1n [39]

Answer:

direct effect

Increasing the pressure increases the boiling point and decreasing the pressure decreases the boiling point

8 0
3 years ago
Read 2 more answers
What a dehydration means?.
Burka [1]

To solve such this we must know the concept of chemical reaction and dehydration reaction. Therefore, dehydration means to remove water from a compound.

<h3>What is chemical reaction? </h3>

Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.

Dehydration is a chemical process in which removal of water molecules from a compound take place using suitable reagent. The best reagent for dehydration can be any reagent that is water loving.

Therefore, dehydration means to remove water.

Learn more about the chemical reactions, here:

brainly.com/question/3461108

#SPJ1

8 0
1 year ago
INFORMATION FOR MY LAST QUESTION THIS IS PART A OF THE QUESTION
Anika [276]

Answer:

The print is so little i cant read it. :( Sorry!

Explanation:

4 0
3 years ago
Could someone help with this? Much appreciated!
alekssr [168]

Answer:

The 3rd answer down.

Na²O (sodium oxide) will be a base when exposed to water H²O

Explanation:

Sodium Oxide Na²O, will become Sodium Hydroxide after being exposed to water (at 80% I believe).

The oxygen ion in Na²O has 2 extra electrons which makes it highly charged and very attractive to hydrogen ions. The attraction is so strong that when Na²O comes in contact with H²O, the O(-2) strips off a hydrogen from water, forming 2 x OH ions which of course are still strongly basic.

6 0
3 years ago
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