Chapter 1: Problem 7
The number of significant figures in \(0.0500\) is (1) one (2) three (3) two (4) four
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Key Concepts
These are the key concepts you need to understand to accurately answer the question.
Chapter 1: Problem 7
The number of significant figures in \(0.0500\) is (1) one (2) three (3) two (4) four
These are the key concepts you need to understand to accurately answer the question.
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Get started for freeTwo elements \(X\) (at mass 16\()\) and \(Y\) (at mass 14\()\) combine to form compounds \(A, B\) and \(C .\) The ratio of different masses of Y which combine with a fixed mass of \(X\) in \(A, B\) and \(C\) is \(1: 3: 5 .\) lf 32 parts by mass of \(X\) combines with 84 parts by mass of \(Y\) and \(B\), then in \(C\). 16 parts by mass of \(\mathrm{X}\) will combine with (1) 14 parts by mass of \(\mathrm{Y}\) (2) 42 parts by mass of \(\mathrm{Y}\) (3) 70 parts by mass of \(\mathrm{Y}\) (4) 84 parts by mass of \(\mathrm{Y}\)
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How many moles of atoms are present in onc mole of \(\mathrm{CII}_{3} \mathrm{COOII}\) molecule? (1) 2 moles of \(\mathrm{C}\) atoms, 4 moles of \(\mathrm{H}\) atoms, 2 moles of \(\mathrm{O}\) atoms (2) 1 mole of \(C\) atoms, 2 moles of \(\mathrm{H}\) atoms, 1 mole of \(\mathrm{O}\) atoms (3) 2 moles of \(\mathrm{C}\) atoms, 3 moles of \(\mathrm{H}\) atoms, 2 moles of \(O\) atoms (4) None
Given the numbers \(786,0.786\) and \(0.0786\) the number of significant figures for the three numbers is (1) 3,4 and 5 , respectively (2) 3,3 and 3 , respectively (3) 3,3 and 4, respectively (4) 3,4 and 4, respectively
Which of the following is wrong? (1) One mole of hydrogen weighs less than one mole of glucose (2) Two moles of hydrogen and one mole of helium weigh the same (3) \(0.1\) mole of oxygen weighs more than one mole of hydrogen (4) One mole of nitrogen and half a mole of oxygen weigh the same
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