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. (ΔH_solnNaOH)

Expert Solution

queen_honey_blossom answered 2 years ago

14.00 g of anhydrous sodium acetate (82.03 g/mol) was dissolved in 100.00 g of water, the...

14.00 g of anhydrous sodium acetate (82.03 g/mol) was dissolved in 100.00 g of water, the heat capacity of the reaction mixture was 4.045 J/g K. The change in temperature was increased by 6.40 °C. 1. is this an exothermic or a.m. endothermic reaction? 2. the heat transferred (qsys), was? 3. the number of moles of anhydrous sodium acetate dissolved is? 4. the (delta H) of dissolution for anhydrous sodium acetate is?

An unknown mass of sodium hydroxide is dissolved in 500 g of water. This solution is...

An unknown mass of sodium hydroxide is dissolved in 500 g of water. This solution is neutralized by adding successively 18 g of CH3COOH, 25.2 g HNO3, and 29.4 g of H2SO4. Determine a) the mass of NaOH b) the mass of H2O in the neutral solution.

sodium hydroxide dissolved

A student added 10 g (0.25 mol) of sodium hydroxide to 40 cm3 of water to make a concentrated solution. All the sodium hydroxide dissolved. He measured the maximum temperature rise. He suggested that these results would give an accurate value for the standard enthalpy change of solution. Give two reasons why he is incorrect.

Lab9 q10 When a 4.72 g sample of solid sodium hydroxide was dissolved in a calorimeter...

Lab9 q10 When a 4.72 g sample of solid sodium hydroxide was dissolved in a calorimeter in 60.0 g of water, the temperature rose from 25.9 oC to 47.0 oC . Calculate ΔH (in kJ/mol NaOH) for the following solution process: NaOH(s)→Na+(aq)+OH−(aq) Assume that it’s a perfect calorimeter and that the specific heat of the solution is the same as that of pure water. (-------------) kJ/mol

In a second experiment, 16.00 g of sodium acetate trihydrate (136.08 g/mol) was dissolved in 100.00...

In a second experiment, 16.00 g of sodium acetate trihydrate (136.08 g/mol) was dissolved in 100.00 ml of water. The initial temperature was 25.00 °C, and the final temperature was 20.06 ºC. The heat capacity of the reaction mixture was 4.045 J g-1deg-1 E. Calculate delta Hhydration for converting sodium acetate(s) to sodium acetate trihydrate (aq) 1 I've done previous portions of this same question including calcultating delta T, heat transfered, number of moles, and delta H dissolution if that...

Suppose you are titrating 100.00 mL of 0.05723M sodium hydroxide (NaOH) with 0.1642M hydrochloric acid (HCl)....

Suppose you are titrating 100.00 mL of 0.05723M sodium hydroxide (NaOH) with 0.1642M hydrochloric acid (HCl). Calculate the pH of a titree solution when (a) 10.00 mL of HCl is added. (3 pts) (b) the equivalent volume (equivalence point) of HCl is added. (3 pt) (c) 37.00 mL of HCl is added. (3 pts)

What is the pH of the solution when 10.005g of sodium hydroxide is dissolved in 500mL...

What is the pH of the solution when 10.005g of sodium hydroxide is dissolved in 500mL of 0.5M acetic acid. pKa value for acetic acid is 4.74.

Solid sodium reacts with water to produce aqueous sodium hydroxide (NaOH) and molecular hydrogen gas. Determine...

Solid sodium reacts with water to produce aqueous sodium hydroxide (NaOH) and molecular hydrogen gas. Determine the limiting reactant if 8.21 grams of sodium are reacted with 6.98 grams of water.

If 2.99 g of sodium peroxide (Na2O2) react with water to produce sodium hydroxide and oxygen,...

If 2.99 g of sodium peroxide (Na2O2) react with water to produce sodium hydroxide and oxygen, how many liters of oxygen will be produced at 30.4 °C and 734 torr? 2 Na2O2(s) + 2 H2O(l) → 4 NaOH(aq) + O2(g)

0.4857 g of KHP was dissolved in water and titrated with a solution NaOH of unknown...

0.4857 g of KHP was dissolved in water and titrated with a solution NaOH of unknown Molarity. A volume of 20.35 mL of NaOH solution was required to reach the endpoint. Two more runs with 0.4449 g and 0.4701 g of KHP required 19.04 and 19.73 mL of the NaOH respectively. a)Calculate the mL of NaOH/g KHP for each run. b)Find the mean, standard deviation, and CV c) The fourth run with 0.4501 g of KHP needed 18.89 mL of...

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