When 5.00 grams of sodium hydroxide dissolves in 100. grams of water the temperature rises from...

When 5.00 grams of sodium hydroxide dissolves in 100. grams of water the temperature rises from 25.0 oC to 38.0 oC. Is this reaction endothermic or exothermic? EXPLAIN. Calculate the value of ∆H (kJ/mol) and its sign. Draw an enthalpy graph and clearly label all parts.

Expert Solution

queen_honey_blossom answered 11 months ago

sodium hydroxide dissolves very easily, and exothermically, in water. Using values from the appendix in your...

sodium hydroxide dissolves very easily, and exothermically, in water. Using values from the appendix in your text, calculate the Ksp for this salt, as well as the temperature at which this reaction becomes spontaneous. Does the temperature need to be above or below this value in order for the process to proceed without outside intervention? Na0H(s): -379.4 kJ/mol

100 grams of boiling water (temperature 100

When 6M sodium hydroxide is added to an unknown white solid, the solid dissolves. What is...

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At 25°C, 2.00 grams of sodium hydroxide is dissolved in enough water to make 500. mL...

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Stephanie dissolves 9 grams of potassium chloride (KCl) in 32. grams of water. What is the...

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When compound A dissolves in water, the temperature drops. What can you say about the relative...

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When 2.50 g of sodium hydroxide (NaOH) was dissolved in 100.00 g of water a value...

When 2.50 g of sodium hydroxide (NaOH) was dissolved in 100.00 g of water a value of 12.00oC was obtained for ΔT. Calculate the molarity of the sodium hydroxide solution. Calculate the value (calories) for the heat of solution of 2.50 g of NaOH Calculate the number of calories that would be produced if one mole of sodium hydroxide was dissolved. (ΔHsolnNaOH)

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A student dissolves 50.0g of CaCl2 in 752 mL of water at a temperature of 25.0C and places it in a sealed 1.00L container. The final volume of this solution is 752mL. The density of water is 0.998g/mL. The Kf for water is 1.86C/m. The vapor pressure of water at 25.0C is 23.76mmHg. What is the vapor pressure of water in the headspace above the solution? What is the number of moles of water in the headspace above? what is...

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1 ) Sulfur dioxide gas reacts with sodium hydroxide to form sodium sulfite and water. The...

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