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Fructose is a common sugar found in fruit. Elemental analysis of fructose gives the following mass percent composition: C 40.00%, H 6.72%, O 53.28%. The molar mass of fructose is 180. 16 g/mol. Find the molecular formula of fructose. 

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A Freon leak in the air-conditioning system of a large building releases 12 kg of CHF2Cl per month. If the leak is allowed to continue, how many kilograms of Cl will be emitted into the atmosphere each year?

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Determine the chemical formula of each compound and then use it to calculate the mass percent composition of each constituent element: 

d. carbon dioxide

 

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Determine the chemical formula of each compound and then use it to calculate the mass percent composition of each constituent element: 

c. nitrogen triiodide

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Determine the chemical formula of each compound and then use it to calculate the mass percent composition of each constituent element: 

b. phosphorus pentachloride 

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Determine the chemical formula of each compound and then use it to calculate the mass percent composition of each constituent element: 

a. perchloric acid

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A drop of water has a volume of approximately 0.05 mL. How many water molecules does it contain? The density of water is 1.0 g/cm3

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How many molecules of ethanol (C2H5OH) (the alcohol in alcoholic beverages) are present in 145 mL of ethanol? The density of ethanol is 0.789 g/cm3.

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Classify each organic compound as a hydrocarbon or a functionalized hydrocarbon. For functionalized hydrocarbons, identify the family to which the compound belongs.

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Write a formula based on the name, or a name based on the formula, for each hydrocarbon: 

d. heptane

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Write a formula based on the name, or a name based on the formula, for each hydrocarbon:

c. CH3CH2CH2CH2CH2CH3

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Write a formula based on the name, or a name based on the formula, for each hydrocarbon:

b. pentane 

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Write a formula based on the name, or a name based on the formula, for each hydrocarbon: 

a. CH3CH3

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Write a formula based on the name, or a name based on the formula, for each hydrocarbon:

d. CH3CH2CH2CH2CH3

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Write a formula based on the name, or a name based on the formula, for each hydrocarbon:

c. octane

 

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Write a formula based on the name, or a name based on the formula, for each hydrocarbon:

b. CH3CH2CH3

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Write a formula based on the name, or a name based on the formula, for each hydrocarbon:

a. propane

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Classify each hydrocarbon as an alkane, alkene, or alkyne:

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Classify each compound as organic or inorganic

a. C8H18

b. CH3NH2

c. CaO

d. FeCO3

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Balance each chemical equation:

d. FeS(s) + HCl(aq) → FeCl2(aq) + H2S(g)

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Name each acid. 

a. Hl

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Balance each chemical equation:

c. HCl(aq) + O2(g) → H2O(l) + Cl2(g)

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Write a formula for each molecular compound. 

d. carbon tetrabromide 

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Write a formula for each molecular compound. 

c. xenon tetrafluoride 

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Write a formula for each molecular compound. 

b. dichlorine monoxide 

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