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A compound contains two elements 'x' and 'Y' in the ratio of 50% each. Atomic mass of 'x' is 20 and 'Y' is 40. What can be its simplest formula?
- a)XY
- b)X2Y
- c)XY2
- d)X2Y3
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A compound contains two elements xand Yin the ratio of 50% each. Atomi...
Explanation:
To determine the simplest formula of a compound, we need to find the ratio of the elements present in the compound. In this case, the compound contains two elements, X and Y, in a ratio of 50% each.
Step 1: Determine the atomic masses of X and Y
The atomic mass of X is given as 20, and the atomic mass of Y is given as 40.
Step 2: Convert the atomic masses to moles
To find the ratio of the elements, we need to convert the atomic masses to moles by dividing them by their respective atomic masses.
Moles of X = 20/20 = 1
Moles of Y = 40/40 = 1
Step 3: Determine the simplest ratio of X and Y
Since the ratio of X and Y is 1:1, the simplest ratio can be expressed as X1Y1, which can be simplified to XY.
Step 4: Write the simplest formula
The simplest formula of the compound is XY.
Therefore, the correct answer is option B, XY.
Note: It is important to note that the ratio of elements in a compound is determined by the number of moles, not the percentage. The 50% each mentioned in the question is used to determine the ratio of the elements, but the ratio is expressed in moles, not percentages.
To determine the simplest formula of a compound, we need to find the ratio of the elements present in the compound. In this case, the compound contains two elements, X and Y, in a ratio of 50% each.
Step 1: Determine the atomic masses of X and Y
The atomic mass of X is given as 20, and the atomic mass of Y is given as 40.
Step 2: Convert the atomic masses to moles
To find the ratio of the elements, we need to convert the atomic masses to moles by dividing them by their respective atomic masses.
Moles of X = 20/20 = 1
Moles of Y = 40/40 = 1
Step 3: Determine the simplest ratio of X and Y
Since the ratio of X and Y is 1:1, the simplest ratio can be expressed as X1Y1, which can be simplified to XY.
Step 4: Write the simplest formula
The simplest formula of the compound is XY.
Therefore, the correct answer is option B, XY.
Note: It is important to note that the ratio of elements in a compound is determined by the number of moles, not the percentage. The 50% each mentioned in the question is used to determine the ratio of the elements, but the ratio is expressed in moles, not percentages.
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Community Answer
A compound contains two elements xand Yin the ratio of 50% each. Atomi...
Percentage of element 'X' = 50;
Mole ratio = 50/20 = 2.5
Percentage of element 'Y' = 50, mole ratio = 50/40 = 1.25
For 'X' simple ratio = 2.5/1.25 = 2
For 'Y' simple ratio = 1.25/1.25 = 1
Formula = X2Y
Mole ratio = 50/20 = 2.5
Percentage of element 'Y' = 50, mole ratio = 50/40 = 1.25
For 'X' simple ratio = 2.5/1.25 = 2
For 'Y' simple ratio = 1.25/1.25 = 1
Formula = X2Y
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