Answer:
25.9g
Explanation:
Molecular mass of Fe₂O₃ = (56 * 2) + (16 * 3)
= 112 + 48 = 160
Let's follow the unitary method now
In 160g Fe₂O₃ , there is 112 g Fe
In 1 g Fe₂O₃ , there is 112 / 160 g Fe
In 37 Fe₂O₃ , we need 112 * 37 / 160
= 25.9 g Fe
Answer:
B
Explanation:
From charles' law,
where v is volume and t is absolute temperature
- Hence that's it
Given what we know, we can confirm that when carbon and nitrogen form a covalent bond, they will share two electrons between them.
<h3>What is a covalent bond?</h3>
- A covalent bond is when two atoms bond through the sharing of electrons.
- This is one of the most common forms of bonding.
- This is done in order to complete the octet of electrons in their outer shell and achieve stability.
Therefore, given that the covalent bond formed between nitrogen and carbon in the formation of isocyanic acid entails the sharing of electrons, we can confirm that these atoms will share two electrons in order to complete the octet of the nitrogen atom.
To learn more about covalent bonds visit:
brainly.com/question/25150590?referrer=searchResults
Answer:
b. The molarity of the solution increases
Explanation:
The correct answer is option b, that is the molarity of the solution increases.
Because the molarity is the concentration of the solution and it is explained as the amount of solute in amount of solution.
Solution: is the solute dissolved in solvent.
So if we increases the amount of solute in solvent the concentration in terms of molarity of solution increases and if we increase amount of solvent or water then the concentration or molarity increases.
Suppose we have form a sugar solution of 1 L by adding 4 mole of sugar then what happen
Use the Molarity formula
Molarity = no. of moles / 1 L of solution
put values in the formula
Molarity = 4/ 1 L of solution = 4 M
So the molarity of solution is 4 now if we add 2 mole more sugar to the same amount of sugar and amount of solution remain the same
now the no. of moles of sugar = 6 mole
So,
Use the Molarity formula
Molarity = no. of moles / 1 L of solution
put values in the formula
Molarity = 6 mol / 1 L of solution = 6 M
So the correct option is b.