8. Determine the mass of each of the following: (Stote the atomic mass of eoch atom...
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8. Determine the mass of each of the following: (Stote the atomic mass of eoch atom you are using for each solution) (a) 0.0146 mol KOH (b) 10.2 mol ethane, CH (e) 1.6 K 10 mol Na,SO. (d) 6.854 x 10' mol glucose, CoftOt (e) 2.86 mol Co(NH,luCl 9. A 55-kg woman has 7.5 x 10* mol af haemogiobin (molar mass = 64,456 g/mol) in her blood. How many haemoglobin molecules is this? What is this quantity in grams? 10. Calculate each of the following quantities: (Stote the otomic mass of each atom you are using for each solution) (a) Mass (a) of 0.68 mol of KMno. (b) Amount (mal) of 0 atoms in 8.18 g of Ba(NOs); (el Number of O atoms in 7.3 x 10"g of Caso. 2H,0 11. The effectiveness of a nitrogen fertilizer is determined mainly by its mass % N. Rank the following fertilizers, most effective first: potassium nitrate; ammonium nitrate; ammonium sulfate; urea, CO(NH:). (Stote the atomic mass of each atom you are using for each solution) 8. Determine the mass of each of the following: (Stote the atomic mass of eoch atom you are using for each solution) (a) 0.0146 mol KOH (b) 10.2 mol ethane, CH (e) 1.6 K 10 mol Na,SO. (d) 6.854 x 10' mol glucose, CoftOt (e) 2.86 mol Co(NH,luCl 9. A 55-kg woman has 7.5 x 10* mol af haemogiobin (molar mass = 64,456 g/mol) in her blood. How many haemoglobin molecules is this? What is this quantity in grams? 10. Calculate each of the following quantities: (Stote the otomic mass of each atom you are using for each solution) (a) Mass (a) of 0.68 mol of KMno. (b) Amount (mal) of 0 atoms in 8.18 g of Ba(NOs); (el Number of O atoms in 7.3 x 10"g of Caso. 2H,0 11. The effectiveness of a nitrogen fertilizer is determined mainly by its mass % N. Rank the following fertilizers, most effective first: potassium nitrate; ammonium nitrate; ammonium sulfate; urea, CO(NH:). (Stote the atomic mass of each atom you are using for each solution)
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