When a 6.50-g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee-cup calorimeter (Figure 5.18), the temperature rises from 21.6 to 37.8 °C (a) Calculate the quantity of heat (in kJ) released in the reaction.

Video transcript

every once we were asked to determine the police Reaction. g of sodium hydroxide Resolved in 500 g of water. The temperature change of 25°C. 278°C. Now that the amount of heat transferred the mass of the solution. Council specific heat of the solution times the temperature change. How cute is what we're looking for. And the mask is 9.78g over beating hydroxide Plus 500 g of water. Let's give us 509 Like 7 8 grounds auto in the specific heat capacity of water. 4.184 jules. Program times degrees Celsius. For the temperature change Have 78°C -25°C. To give us 53 three Celsius. So if we plug in my values are going to get cute Equals 509.78 brands. 4.184. Those programs sound degree Celsius. I was 53. Very C. Every Q. I'm gonna get 113 044 0.7 jaws. If we can break this tequila jules With 1000 goals And one killer job. Can I get 113 0447 colonel jos the engine 13 0447. Hello jules. And in one more over beating hydroxide had them all the mass. This is 85 .468 grams Plus 15.999 g. House 1.008g. Just give us 102 .475g. We have 9.78 sam's over beating hydroxide. Just give us negative. 1,284 promote Just making of 1.18. I was 10 to the third. Well, just from all, Thanks for watching my video and I hope it was up for.