Concept explainers
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(b)
Interpretation:
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(c)
Interpretation:
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(d)
Interpretation:
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General, Organic, and Biological Chemistry
- Analysis of a 10.0-g sample of apatite (a major component of tooth enamel) showed that it was made up of 3.99 g Ca, 1.85 g P, 4.14 g O, and 0.020 g H. List these elements based on relative amounts (moles), from smallest to largest.arrow_forwardDetermine the number of moles in each substance. a. 3.251020 atoms of lead b. 4.961024 molecules ofglucose c. 1.561023 formula units of sodium hydroxide d. 1.251025 copper(II) ionsarrow_forwardUsing the average atomic masses given inside the front cover of this book, calculate the mass in grams of each of the following samples. l type='a'> 2.17 moles ot germanium, Ge 4.24 mmcl of Iead(II) chloride (1 mmol = 1/1000 moI) 0.0971 mole of ammonia, NH3 :math>4.26103moles of hexane, C6H14 i>1.71 moles of iodine monochloride, ICIarrow_forward
- Using the average atomic masses given inside the front cover of this hook, calculate the mass in grains of each of the following samples. l type='a'> 0.341 mole of potassium nitride 2.62 mmol of neon (1 mmol = 1/1000 mol) 0.00449 mole of manganese(II) oxide 7.18105moles of silicon dioxide 0.00021 mole of iron(III) phosphatearrow_forward3.78 Consider two samples of liquid: I mole of water (H2O) and 1 mole of ethanol. Answer each of the following questions. Note that none of these should require significant calculations. (a) Which sample contains more atoms? (b) Which sample contains more molecules? (c) Which sample has a larger mass?arrow_forward3.79 Consider two samples. Sample A contains 2 moles of N2 and 1 mole of O2, and Sample B contains 1 mole of N2O5. (a) Which sample contains more molecules? (b) Which sample contains more oxygen atoms? (c) Which sample contains more nitrogen atoms?arrow_forward
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