QUESTION 8 You need 0.789 mol of salt (NaCI)? How many grams of the solid would you weigh? Use the periodic table that was given to you in class (available in Content on Blackboard). Type only the number rounded to the nearest tenth. QUESTION 9 Graphite is a naturally- occurring form of carbon. It is used in pencils. How many atoms of carbon are contained in a pencil core, made of pure graphite, if its mass is 1.112 g? O 5.576 x 1022 8.042 x 1024 6.022 x 1023

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A:

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Q: What is the molecular (formula) mass for ZnSO4 (Zinc sulfate), to three significant digits.

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.