a. What would be the formula of the compound formed by a reaction of chlorine with calcium (Ca)? b. What would be the formula of the compound formed by a reaction of chlorine with strontium (Sr)?

Q: 8. How many oxygen atoms are contained in 5.25 g of NO2 gas?

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Q: What mass of potassium phosphate is needed to form 300.49 grams of potassium bromide?

A: 1 mole of potassium phosphate formed 3 moles of potassium bromide.

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Q: 3) Show your calculations clearly. Suppose you are provided with a 36.55 g sample of potassium…

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A: Percent mass of an element in a compound can be calculated by using the following formula:

Q: with

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A:

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Q: Show your calculations clearly. Suppose you are provided with a 36.55 g sample of potassium…

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Q: compound formed. a. Strontium and Sulfur b. Barium and Selenium c. Gallium and Nitrogen

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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.