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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A: Density of a substance is given by the ratio of mass and volume of the substance. Write the…

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A:

Q: Explain why H CO 3(aq) is an 2 inorganic compound.

A: Organic compounds contains mainly carbon and hydrogen. Organic compound is formed by sharing of bond…

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

A:

Q: 59. Determine the molecular weight of Ca(NO,)2

A: Solution- Formula =Ca(NO3)2. Molar mass Ca  =  40.00g/mol. Molar mass N  = 14.00g/mol. Molar mass O…

Q: Consider that the combustion of an unknown amount of a hydrocarbon produces 0.2 moles of H2O.…

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Q: empirical formula of the compound? List the elements in standard order for carbon compounds:

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A:

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Q: What is the mass percent of P in H3PO4? Show your calculations please.

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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A: Number of molecules of PbSO4 = 16 moleculesNumber of Oxygen (O) atoms = ?

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A:

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

A:

Q: . Write the formula for the ionic compound formed when the nitrate anion combines with the silver(1)…

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Q: A 0.933 g sample of Nickle metal is heated in the presence of nitrogne gas forming 1.081 grams of a…

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Q: 238.2g of sodium fluoride are decomposed to form sodium and fluorine. How many moles of sodium are…

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Q: 1. If 23.6 grams of nitrogen are mixed with 17.3 g of hydrogen, how much ammonia may form?

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A:

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

A:

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.