1. 7.52 g of naphthalene (C10H8) in 85.2 mL of benzene solution: ________mol/L 2. (a) What...

1. 7.52 g of naphthalene (C₁₀H₈) in 85.2 mL of benzene solution:

________mol/L

2. (a) What is the Na⁺ concentration in each of the following solutions:

3.25 M sodium sulfate:

_____M

2.38 M sodium carbonate:

______M

0.485 M sodium bicarbonate:

_____M

(b) What is the concentration of a lithium carbonate solution that is 0.895 M in Li⁺?

_____M

Expert Solution

queen_honey_blossom answered 2 years ago

Determine the freezing point of a solution that contains 78.8 g of naphthalene (C10H8, molar mass...

Determine the freezing point of a solution that contains 78.8 g of naphthalene (C10H8, molar mass = 128.16 g/mol) dissolved in 722 mL of benzene (d = 0.877 g/mL). Pure benzene has a melting point of 5.50°C and a freezing point depression constant of 4.90°C/m.

Calculate the freezing point and boiling point of a solution containing 16.0 g of naphthalene (C10H8)...

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A.) Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8). When 1.025 g of naphthalene is...

A.) Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8). When 1.025 g of naphthalene is burned in a bomb calorimeter, the temperature rises from 24.25 ∘C to 32.33 ∘C. Calculate the standard enthalpy of formation (ΔH∘f) for nitroglycerin. Express the change in energy in kilojoules per mole to three significant figures. B.) The air within a piston equipped with a cylinder absorbs 575 J of heat and expands from an initial volume of 0.12 L to a final volume...

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A solution contains naphthalene (C10H8) dissolved in hexane (C6H14) at a concentration of 14.43 % naphthalene...

A solution contains naphthalene (C10H8) dissolved in hexane (C6H14) at a concentration of 14.43 % naphthalene by mass. Calculate the vapor pressure at 25 ∘C of hexane above the solution. The vapor pressure of pure hexane at 25 ∘C is 151 torr.

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A solution contains naphthalene (C10H8)dissolved in hexane (C6H14) at a concentration of 12.84 % naphthalene by mass. Calculate the vapor pressure at 25 ∘C of hexane above the solution. The vapor pressure of pure hexane at 25 ∘Cis 151 torr.

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Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8). When 1.025 g of naphthalene is burned...

Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8). When 1.025 g of naphthalene is burned in a bomb calorimeter, the temperature rises from 24.25 ?C to 32.33 ?C. Find ?Erxn for the combustion of naphthalene. The heat capacity of the calorimeter, determined in a separate experiment, is 5.11kJ/?C. Express the change in energy in kilojoules per mole to three significant figures.

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