A 4.75 g sample of solid NaOH is dissolved in 50.5 g of H2O in a...

A 4.75 g sample of solid NaOH is dissolved in 50.5 g of H₂O in a constant-pressure calorimeter having a heat capacity of 18.5 J/°C. The temperature rises from 21.1°C to 33.6°C. Assuming that the solution has a specific heat capacity of 4.184 J/g·°C and negligible heat loss from the calorimeter, how much heat is produced in the solution process? Thanks so much!!

Solutions

Expert Solution

queen_honey_blossom answered 1 year ago

Next > < Previous

Related Solutions

A 29.0-g sample of NaOH is dissolved in water, and the solution is diluted to give...

A 29.0-g sample of NaOH is dissolved in water, and the solution is diluted to give a final volume of 1.60 L. The molarity of the final solution isA) 18.1 M B) 0.453 M C) 0.725 M D) 0.0552 M E) 0.862 M

A 5.59 g sample of a solid containing Ni is dissolved in 20.0 mL water. A...

A 5.59 g sample of a solid containing Ni is dissolved in 20.0 mL water. A 5.00 mL aliquot of this solution is diluted to 100.0 mL and analyzed in the lab. The solution was determined to contain 5.70 ppm Ni. Determine the molarity of Ni in the 20.0 mL solution. Determine the mass in grams of Ni in the original sample. Determine the weight percent of Ni in the sample.

9A ) A 0.1752 g sample of solid primary standard AgNO3 was dissolved in water and...

9A ) A 0.1752 g sample of solid primary standard AgNO3 was dissolved in water and titrated with 21.672 g of dilute KSCN solution. Calculate the weight molarity of KSCN solution?

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

You have a 1.153 g sample of an unknown solid acid, HA, dissolved in enough water...

You have a 1.153 g sample of an unknown solid acid, HA, dissolved in enough water to make 20.00 mL of solution. HA reacts with KOH(aq) according to the following balanced chemical equation: HA(aq)+KOH(aq)--->KA(aq)+H2O(l) if 13.40 mL of 0.715 M KOH is required to titrate the unknown acid to the equivalence point, what is the concentration of the unknown acid? ALSO What is the molar mass of HA?

A 1.82 g sample of solid N(CH3)4Cl (s) is dissolved in 148 mL of water in...

A 1.82 g sample of solid N(CH3)4Cl (s) is dissolved in 148 mL of water in a coffee cup calorimeter. Once all of the N(CH3)4Cl (s) is dissolved in the water, the final temperature of the solution is found to be 12.46°C. If the initial temperature of the water in the calorimeter was 21.36 °C, calculate the calorimeter constant (in J/K) for the coffee cup calorimeter. Report your answer to three significant figures. The heat of solvation of N(CH3)4Cl (s)...

what is pH of 15.0g KH2PO4 + 27.0 g Na2HPO4 dissolved in H2O plus enough H2O...

what is pH of 15.0g KH2PO4 + 27.0 g Na2HPO4 dissolved in H2O plus enough H2O to fill to 1L

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)

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...

3.920 g of sodium acetate ( CH3COONa MW= 82.03 g/mol), is dissolved in 235.0ml of H2O...

3.920 g of sodium acetate ( CH3COONa MW= 82.03 g/mol), is dissolved in 235.0ml of H2O at 50 degree celsius (kw= K.48E-14). Calculate the pH of this soluion ( Ka= 1.63 E-5) Determine the % ionization

Subjects