Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?

Ans: 0.0303 moles of iron are made in the sample

Given:

Mass of iron = 1.69 g

To determine:

moles of iron in the sample

Explanation:

Moles of iron = mass of iron/atomic mass

                      = 1.69 g/55.85 g.mol-1 = 0.0303 moles

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

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