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Ex. A compound which contains one atom of X and two atoms of y for each three atoms of z is made of mixing 5 gm of x, 1.15 × 1023 atoms of Y and 0.03 mole of Z atoms. Given that only 4.40 gm of compound results. Calculate the atomic weight of Y if atomic weight of X and Z are 60 and 80 respectively. can u just explain the last step of this problem?? ( its solved in doc stiochiometry and calculation)
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Ex. A compound which contains one atom of X and two atoms of y for ea...
the empirical formula of the compound is : xy
2z
3Now, as we know that not all the x could have been used in making the compound, as we are given 5 g of x and the total mass of product is = 4.40 g. Thus it must be present in an excess amount.
Moles of y = 1.15 x 10
23 atoms / 6.022 x 10
23atoms mol
-1= 1.15x10^23 atoms / 6.022x10^23 atoms/mol = 0.19 mol
As we are told that there are 0.03 moles of z, then it must be a limiting reagent, hence, we can assume that all of one of the elements is in the compound which has to be z.
Thus, assuming there are 0.03 moles of z in the compound, then using the given empirical formula:
0.02 moles y and 0.01 moles x
Molar mass of x = 60 g mol
-1Thus mass if x = 60 g mol
-1 x 0.01 = 0.6 g
Similarly, molar mass of z = 80 g mol
-1Thus mass of z = 80 g mol
-1 x 0.03 mol = 2.4 g
thus mass of y = total mass of the compound - mass of x - mass of y
= 4.40 g - 0.6 g - 2.4 g
= 1.4 g
Since the moles of y = 0.02 mol
atomic mass of y = 1.4 g / 0.02 mol =
70 g mol-1 Community Answer
Ex. A compound which contains one atom of X and two atoms of y for ea...
Given Information:
- Compound contains 1 atom of X and 2 atoms of Y for every 3 atoms of Z
- 5 gm of X
- 1.15 × 10^23 atoms of Y
- 0.03 mole of Z atoms
- 4.40 gm of compound
- Atomic weight of X = 60
- Atomic weight of Z = 80
Calculation:
Step 1: Calculate the moles of X, Y, and Z
- Given weight of X: 5 gm
- Atomic weight of X: 60
- Moles of X = (Given weight of X) / (Atomic weight of X) = 5 / 60 = 0.0833 moles
- Given atoms of Y: 1.15 × 10^23
- Moles of Y = (Given atoms of Y) / (Avogadro's number)
- Avogadro's number = 6.022 × 10^23
- Moles of Y = (1.15 × 10^23) / (6.022 × 10^23) = 0.191 moles
- Given moles of Z: 0.03 moles
Step 2: Determine the stoichiometry of the compound
- The ratio of X to Y to Z in the compound is 1:2:3
- So, the moles of X : moles of Y : moles of Z = 1 : 2 : 3
- From Step 1, we have moles of X = 0.0833, moles of Y = 0.191, and moles of Z = 0.03
- Divide all the moles by the smallest value to get the simplest whole number ratio
- Simplifying, we have moles of X : moles of Y : moles of Z = 1/0.03 : 2/0.03 : 3/0.03
- Therefore, moles of X : moles of Y : moles of Z = 33.33 : 66.67 : 100
Step 3: Calculate the weight of the compound
- Given weight of the compound: 4.40 gm
- Find the total moles of the compound by adding the moles of X, Y, and Z
- Total moles of the compound = moles of X + moles of Y + moles of Z
- Total moles of the compound = 0.0833 + 0.191 + 0.03 = 0.3043 moles
- Calculate the molar mass of the compound by dividing the weight of the compound by the total moles of the compound
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Ex. A compound which contains one atom of X and two atoms of y for each three atoms of z is made of mixing 5 gm of x, 1.15 × 1023 atoms of Y and 0.03 mole of Z atoms. Given that only 4.40 gm of compound results. Calculate the atomic weight of Y if atomic weight of X and Z are 60 and 80 respectively. can u just explain the last step of this problem?? ( its solved in doc stiochiometry and calculation)
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Ex. A compound which contains one atom of X and two atoms of y for each three atoms of z is made of mixing 5 gm of x, 1.15 × 1023 atoms of Y and 0.03 mole of Z atoms. Given that only 4.40 gm of compound results. Calculate the atomic weight of Y if atomic weight of X and Z are 60 and 80 respectively. can u just explain the last step of this problem?? ( its solved in doc stiochiometry and calculation) for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Ex. A compound which contains one atom of X and two atoms of y for each three atoms of z is made of mixing 5 gm of x, 1.15 × 1023 atoms of Y and 0.03 mole of Z atoms. Given that only 4.40 gm of compound results. Calculate the atomic weight of Y if atomic weight of X and Z are 60 and 80 respectively. can u just explain the last step of this problem?? ( its solved in doc stiochiometry and calculation) covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Ex. A compound which contains one atom of X and two atoms of y for each three atoms of z is made of mixing 5 gm of x, 1.15 × 1023 atoms of Y and 0.03 mole of Z atoms. Given that only 4.40 gm of compound results. Calculate the atomic weight of Y if atomic weight of X and Z are 60 and 80 respectively. can u just explain the last step of this problem?? ( its solved in doc stiochiometry and calculation).
Ex. A compound which contains one atom of X and two atoms of y for each three atoms of z is made of mixing 5 gm of x, 1.15 × 1023 atoms of Y and 0.03 mole of Z atoms. Given that only 4.40 gm of compound results. Calculate the atomic weight of Y if atomic weight of X and Z are 60 and 80 respectively. can u just explain the last step of this problem?? ( its solved in doc stiochiometry and calculation) for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Ex. A compound which contains one atom of X and two atoms of y for each three atoms of z is made of mixing 5 gm of x, 1.15 × 1023 atoms of Y and 0.03 mole of Z atoms. Given that only 4.40 gm of compound results. Calculate the atomic weight of Y if atomic weight of X and Z are 60 and 80 respectively. can u just explain the last step of this problem?? ( its solved in doc stiochiometry and calculation) covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Ex. A compound which contains one atom of X and two atoms of y for each three atoms of z is made of mixing 5 gm of x, 1.15 × 1023 atoms of Y and 0.03 mole of Z atoms. Given that only 4.40 gm of compound results. Calculate the atomic weight of Y if atomic weight of X and Z are 60 and 80 respectively. can u just explain the last step of this problem?? ( its solved in doc stiochiometry and calculation).
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Ex. A compound which contains one atom of X and two atoms of y for each three atoms of z is made of mixing 5 gm of x, 1.15 × 1023 atoms of Y and 0.03 mole of Z atoms. Given that only 4.40 gm of compound results. Calculate the atomic weight of Y if atomic weight of X and Z are 60 and 80 respectively. can u just explain the last step of this problem?? ( its solved in doc stiochiometry and calculation), a detailed solution for Ex. A compound which contains one atom of X and two atoms of y for each three atoms of z is made of mixing 5 gm of x, 1.15 × 1023 atoms of Y and 0.03 mole of Z atoms. Given that only 4.40 gm of compound results. Calculate the atomic weight of Y if atomic weight of X and Z are 60 and 80 respectively. can u just explain the last step of this problem?? ( its solved in doc stiochiometry and calculation) has been provided alongside types of Ex. A compound which contains one atom of X and two atoms of y for each three atoms of z is made of mixing 5 gm of x, 1.15 × 1023 atoms of Y and 0.03 mole of Z atoms. Given that only 4.40 gm of compound results. Calculate the atomic weight of Y if atomic weight of X and Z are 60 and 80 respectively. can u just explain the last step of this problem?? ( its solved in doc stiochiometry and calculation) theory, EduRev gives you an
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