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09-12-2022
Chemistry

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Calculate the molar mass of the compound BaCl2. Type your answer in the space below, rounding your answer to two decimal places.

Calculate the molar mass of the compound Mg(NO3)2. Type your answer in the space below, rounding your answer to two decimal places.

The molar mass of the element oxygen is 16 g/mol. How many moles of oxygen atoms are present in a sample of oxygen with a mass of 48 g? Type your answer in the space below, rounded to the nearest whole number.

The molar mass of the element hydrogen is 1.01 g/mol. What is the mass of 11 moles of hydrogen atoms? Type your answer in the space below, rounded to two decimal places.

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