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Which of the following weighs least ? a - 2.0 gram mole of CO2 b - 0.1 mole of sucrose ( C12H22O11) c - 1 gram atom of calcium d - 1.5 mole of water? how to calculate this question?
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Which of the following weighs least ? a - 2.0 gram mole of CO2 b - 0.1...
Calculating the Weight of Different Substances
To determine the weight of different substances, we need to know their molecular or atomic weights and the number of moles or atoms present in each option.
a. 2.0 gram mole of CO2:
- The molecular weight of CO2 is 44 g/mol.
- 2.0 gram mole of CO2 = (2.0 mol) x (44 g/mol) = 88 grams
b. 0.1 mole of sucrose (C12H22O11):
- The molecular weight of sucrose is 342.3 g/mol.
- 0.1 mole of sucrose = (0.1 mol) x (342.3 g/mol) = 34.23 grams
c. 1 gram atom of calcium:
- The atomic weight of calcium is 40 g/mol.
- 1 gram atom of calcium = (1 mol) x (40 g/mol) = 40 grams
d. 1.5 mole of water:
- The molecular weight of water is 18 g/mol.
- 1.5 mole of water = (1.5 mol) x (18 g/mol) = 27 grams
Comparing the Weights of Different Substances
To determine which option weighs the least, we need to compare the weights we calculated above.
- 88 grams (2.0 gram mole of CO2)
- 34.23 grams (0.1 mole of sucrose)
- 40 grams (1 gram atom of calcium)
- 27 grams (1.5 mole of water)
Therefore, the option that weighs least is 0.1 mole of sucrose (C12H22O11) with a weight of 34.23 grams.
To determine the weight of different substances, we need to know their molecular or atomic weights and the number of moles or atoms present in each option.
a. 2.0 gram mole of CO2:
- The molecular weight of CO2 is 44 g/mol.
- 2.0 gram mole of CO2 = (2.0 mol) x (44 g/mol) = 88 grams
b. 0.1 mole of sucrose (C12H22O11):
- The molecular weight of sucrose is 342.3 g/mol.
- 0.1 mole of sucrose = (0.1 mol) x (342.3 g/mol) = 34.23 grams
c. 1 gram atom of calcium:
- The atomic weight of calcium is 40 g/mol.
- 1 gram atom of calcium = (1 mol) x (40 g/mol) = 40 grams
d. 1.5 mole of water:
- The molecular weight of water is 18 g/mol.
- 1.5 mole of water = (1.5 mol) x (18 g/mol) = 27 grams
Comparing the Weights of Different Substances
To determine which option weighs the least, we need to compare the weights we calculated above.
- 88 grams (2.0 gram mole of CO2)
- 34.23 grams (0.1 mole of sucrose)
- 40 grams (1 gram atom of calcium)
- 27 grams (1.5 mole of water)
Therefore, the option that weighs least is 0.1 mole of sucrose (C12H22O11) with a weight of 34.23 grams.
Community Answer
Which of the following weighs least ? a - 2.0 gram mole of CO2 b - 0.1...
A) wt of co2 = no of mole × molecular mass
= 2× (12×1+16×2) = 88gr.
b)wt of sucrose = no of mole ×molecular mass
= 0.1 × (12×12+22×1+16×11)
= 34.2gr
c)wt of ca =1x 40 = 40 gr
( 1mole = 1g atom)
d)wt of water = 1.5 × (2×1+16)
= 27gr
so 1.5 mole of water weighs least
= 2× (12×1+16×2) = 88gr.
b)wt of sucrose = no of mole ×molecular mass
= 0.1 × (12×12+22×1+16×11)
= 34.2gr
c)wt of ca =1x 40 = 40 gr
( 1mole = 1g atom)
d)wt of water = 1.5 × (2×1+16)
= 27gr
so 1.5 mole of water weighs least
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Which of the following weighs least ? a - 2.0 gram mole of CO2 b - 0.1 mole of sucrose ( C12H22O11) c - 1 gram atom of calcium d - 1.5 mole of water? how to calculate this question?
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Which of the following weighs least ? a - 2.0 gram mole of CO2 b - 0.1 mole of sucrose ( C12H22O11) c - 1 gram atom of calcium d - 1.5 mole of water? how to calculate this question? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following weighs least ? a - 2.0 gram mole of CO2 b - 0.1 mole of sucrose ( C12H22O11) c - 1 gram atom of calcium d - 1.5 mole of water? how to calculate this question? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following weighs least ? a - 2.0 gram mole of CO2 b - 0.1 mole of sucrose ( C12H22O11) c - 1 gram atom of calcium d - 1.5 mole of water? how to calculate this question?.
Which of the following weighs least ? a - 2.0 gram mole of CO2 b - 0.1 mole of sucrose ( C12H22O11) c - 1 gram atom of calcium d - 1.5 mole of water? how to calculate this question? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following weighs least ? a - 2.0 gram mole of CO2 b - 0.1 mole of sucrose ( C12H22O11) c - 1 gram atom of calcium d - 1.5 mole of water? how to calculate this question? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following weighs least ? a - 2.0 gram mole of CO2 b - 0.1 mole of sucrose ( C12H22O11) c - 1 gram atom of calcium d - 1.5 mole of water? how to calculate this question?.
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