Chapter 1: 1)A car travels 32 miles per gallon of gasoline. How many kilometers

Question

Chapter 1: 1)A car travels 32 miles per gallon of gasoline. How many kilometers per liter is this? to kg/m 2) Convert 0.5 mg/ Chapter 2 1) An atom contains 82 protons, 82 electrons and 127 neutrons. Write its chemical symbol u notation 2) Element "x" has three isotopes. Determine the relative abundance for Element "x": Mass (amu) Abundance (Percent) X-42 42.05 X-44 44.09 35% x 45 45.11 3) Review nomenclature Chapter 3: 1) Determine the mass percent of oxygen in carbon dioxide? 2) How many okygen atoms are in 25.0 g co? (MM co2 44.0 g/mol 3) What is the mass of 1.88 x 10 molecules of co? (MM co2 s 44.0 g/mol) 4) For the reaction 2 Na 1 cla 2 Nacl (MM Nacl 58.4 g/mol) Given 52.0 g Na and 99.0 g Cl2, how many grams of Naci can be produced?

Explanation / Answer

Question 1.

1 gal = 32 miles

1 gal = 3.78 L

3.78 L --> 32 miles

1 mil = 1.60934 km

32*1.60934

3.78 L --> 51.49888 km

km per liter --> 51.49888 /3.78

Rate = 13.624 km/l

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