CHEMISTRY MIDDLE SCHOOL

23g of sodium reacted with 35.5g of chlorine. Calculate the mass of the sodium chloride compound formed.

Answers

Answer 1

Answer:

Answer: The mass of sodium chloride formed will be 58.5 g

Explanation:

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ .....(1)

For Sodium:

Given mass of sodium = 23 g

Molar mass of sodium = 23 g/mol

Putting values in equation 1, we get:

$\text{Moles of sodium}=(23g)/(23g/mol)=1mol$

For chlorine gas:

Given mass of chlorine gas = 35.5 g

Molar mass of chlorine gas = 71 g/mol

Putting values in equation 1, we get:

$\text{Moles of chlorine gas}=(35.5g)/(71g/mol)=0.5mol$

The chemical reaction for the formation of sodium chloride follows the equation:

$2Na+Cl_2\rightarrow 2NaCl$

By stoichiometry of the reaction:

2 moles of sodium reacts with 1 mole of chlorine gas.

So, 1 mole of sodium will react with = $(1)/(2)* 1=0.5mol$ of chlorine gas.

Thus, the formation of sodium chloride can be calculated by using any of the reactant.

By stoichiometry of the reaction:

2 moles of sodium produces 2 moles of sodium chloride.

So, 1 mole of sodium will react with = $(2)/(2)* 1=1mol$ of sodium chloride.

Now, calculating the mass of sodium chloride by using equation 1, we get:

Moles of sodium chloride = 1 mole

Molar mass of sodium chloride = 58.5 g/mol

Putting values in equation 1, we get:

$1mol=\frac{\text{Mass of NaCl}}{58.5g/mol}\n\n\text{Mass of NaCl}=58.5g$

Hence, the mass of sodium chloride formed will be 58.5 g

Answer 2

Answer: 58.5 is the final mass of the compound as long as any gases the reaction causes to be

Related Questions

What is the name of the body part that passes messagesfrom the sensory neurons to the brain?
o Lungs
O Nerve Cells
o Brain
o Stimulus please help me thanks

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The answer would be nerve cells. Hope that helps you!

What kind of changes cause iron to rust ?

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Answer:

ways it rust are

1.you put water on it

2.let it sit out side for about a month or 2

you put the iron in water still wait a month or 2 then

you got the full or sum rusty parts

Explanation:

ether way you need water, air ,and the main thing... IRON

List the ways in which tadpole and frogs differ from each other?

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Body Structure
A tadpole starts out as a body mass with an elongated tail. As metamorphosis takes effect, it begins sprouting legs and arms and grows small teeth that allow it to eat algae and small bugs. The body elongates, and the tail shrinks. The main difference, however, in the body structure of a tadpole is that it has gills. Gills allow the tadpole to breathe underwater. This is important because it does not have legs and arms yet, or the muscular structure to support itself on land.

Frogs have a strong muscular structure that allows them to be mobile both on land and in the water. Their hind legs are long and powerful, and their feet are webbed for greater swimming efficiency. Most importantly, mature frogs breathe through lungs instead of gills. Mature frogs can no longer breathe under water.

Movement
Tadpoles have one way of moving: swimming. Tadpoles will stay in the water until they evolve into frogs. Young tadpoles are not very proficient swimmers and attach themselves to foliage until they are more developed. As they mature, the tadpoles begin to learn to swim by moving their tails back and forth.

Frogs, on the other hand, can both swim and hop. The difference between a frog swimming and a tadpole swimming is the means of propulsion. Tadpoles use their tails, but frogs have no tails. Frogs use their hind legs and propel themselves forward in a kicking motion. On land, frogs can move by hopping around, something that tadpoles are not capable of.

Tadpoles are developing into being frogs. They have yet to develop hind legs and have a tail.

An (blank) is an abbreviation for the name of an element and usualy has eighter one or two letters

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The Chemical Symbol is the Abbreviation for the name of an element.

How fast do you think the air particles in this room are moving compared to a car going 50 mph (about 22m/s)? Put your answer is in the form, 'a molecule travels ___ as fast as a car"

Answers

Based on the calculations, a molecule travels 22.73 as fast as a car.

Given the following data:

Speed of car = 50 mph (22 m/s)

Under standard temperature and pressure (room conditions), the speed of an average molecule is equal to 500 meter per seconds. Thus, the speed of air particle is 500 m/s.

To determine how fast (rate) the air particles in a room are moving compared to a car, we would use this formula:

$Rate = (Speed \;of\;air\;particles)/(Speed \;of\;car)$

Substituting the given parameters into the formula, we have;

$Rate =(500)/(22)$

Rate = 22.73

Read more on speed here: brainly.com/question/10545161

The average molecule of air is moving at speed of 500 m /s and thus

speed of air particle = 500 m /s

speed of car = 22 m /s

Whereas, the speed of molecule /speed of car = 500 /22 = 22.72

Thus, molecule travel at 22.72 times faster than speed of car.

Describe the path of a carbon atom through the process of cellular respiration? PLEASE HELP!!!!

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