Answer: The student’s percent error is 3.16%.
Explanation:
Calculated mass of the block = 16.3 g
Actual mass of the block = 15.8 g


The student’s percent error is 3.16%.
The balanced chemical reaction would be :
S + O2 = SO2
2SO2 + O2 = 2SO3
We are given the amount of oxygen to be used in the reaction. This will be the starting value in the calculations. We do as follows:
2.56 L O2 ( 1 mol / 22.4 L) ( 1 mol SO2 / 1 mol O2 ) ( 2 mol SO3 / 2 mol SO2 ) 22.4 L / 1 mol = 2.56 mol SO3
The question is incomplete, here is the complete question:
Nickel and carbon monoxide react to form nickel carbonyl, like this:
At a certain temperature, a chemist finds that a 2.6 L reaction vessel containing a mixture of nickel, carbon monoxide, and nickel carbonyl at equilibrium has the following composition:
Compound Amount
Ni 12.7 g
CO 1.98 g
0.597 g
Calculate the value of the equilibrium constant.
<u>Answer:</u> The value of equilibrium constant for the reaction is 2448.1
<u>Explanation:</u>
We are given:
Mass of nickel = 12.7 g
Mass of CO = 1.98 g
Mass of
= 0.597 g
Volume of container = 2.6 L
To calculate the number of moles for given molarity, we use the equation:




For the given chemical reaction:

The expression of equilibrium constant for the reaction:
![K_{eq}=\frac{[Ni(CO)_4]}{[CO]^4}](https://tex.z-dn.net/?f=K_%7Beq%7D%3D%5Cfrac%7B%5BNi%28CO%29_4%5D%7D%7B%5BCO%5D%5E4%7D)
Concentrations of pure solids and pure liquids are taken as 1 in equilibrium constant expression.
Putting values in above expression, we get:

Hence, the value of equilibrium constant for the reaction is 2448.1
Across:
10. The circulatory system transfers nutrients, gases, liquids, and heat around the body.
11. The circulatory system transports heat, which helps regulate temperature.
13. The place where oxygen enters the blood and carbon dioxide leaves the blood. Lungs.
15. A gas that is transported in arteries from the lungs to the rest of the body via the heart. Oxygen.
Down:
2. The heart, blood, and vessels. Circulatory System.
4. Blood in arteries is bright red because it is rich in oxygen.
6. A waste gas that is transported in veins from the body to the lungs via the heart. Carbon di Oxide.
<u>Explanation:</u>
The circulatory system includes blood vessels, blood, and heart. This system provides the body tissues with oxygen and some nutrients. It also carries hormones and eliminates needless waste products.
This transportation takes place between the cells via blood throughout the body. The channel that blood passes through is a blood vessel that is pumped by an organ called heart. The heart directs the blood passing all over the body.
The lungs are a duo of air-filled, spongy organs positioned on both sides of a human's chest. Its main function is to take in air present in the atmosphere and transfer oxygen to the bloodstream. From where it gets circulated throughout the body.
Answer:
The rows on the periodic table are called periods. All the elements in a period have valence electrons in the same shell. The number of valence electrons increases from left to right in the period. When the shell is full, a new row is started and the process repeats.
Explanation:
hope this helps..