Answer:
2 Moles
Explanation:
12 grams of carbon contains 1 mole
1 gram contains [1 mole/ 12 grams ] x 1 gram
24 grams contains [1 mole/ 12 grams ]* 24 gram = 2 moles.
Answer:
32.4grams
Explanation:
Density of a substance can be calculated as follows:
Density = mass ÷ volume
According to this question, the density of aluminum is 2.7g/cm³ while its volume is 12 cm³. The mass of aluminum is therefore,
2.7 = m/12
m = 12 × 2.7
m = 32.4grams.
The mass of aluminum is 32.4grams
<h2>Answer</h2>
• To determine whether a particular solution is ,concentrated ,or ,diluted
,
• To determine the ,actual concentration ,of a solution
<h2>Explanations:</h2>
When a chemical is added to a solution, chemical solutions are formed. Molarity is used in expressing the concentration of a solution. Molarity is the ratio of the number of moles of a solute to the volume of its solution.
<h2>Importance of molarity</h2>
Molarity is important to determine whether a particular solution is concentrated or diluted. It is also used to determine the actual concentration of a solution
Hence, to determine the concentration of any solution, the moles of the element and its volume in solution are required.
Basically since there’s 2 hydrogen’s there will be two H’s on either side of your other element. And Se is in group 6 which means it has 6 valence electrons. When you combine 6 and 2 from the hydrogen you get 8. You then should place 8 dots around Se two on each side.
So something like H Se(with 8 dogs around it) H
Answer:
The concentration of HCl is - 0.2675 M
Explanation:
At equivalence point
,
Moles of 
= Moles of NaOH
Considering
:-
Given that:
So,
<u>The concentration of HCl is - 0.2675 M</u>
