How many moles are contained in 7.541e23 particles of nitrogen?" Type in answers without units, using scientific notation include three decimal places (thousandths place) EXAMPLE-TYPE ANSWER LIKE THIS: 6.345e25 1.25 moles How many particles are contained in 20.0 mole of NaCI? Type in answers without units, using scientific notation -include three decimal places (thousandths place) EXAMPLE - TYPE ANSWER LIKE THIS: 6.345e25 Your answer O This is a required question

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Q: of

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A:

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Units and Dimensions

Dimensions are the basic concepts of the measurement of quantities. Units are the means of expressing the dimensions. For instance, an area has a dimension of L2 and a unit of m2.