Lab 6
uestions for heats of reaction
part 1: enthalpy ot balung soda and vinegar reaction...
![subject](/tpl/images/cats/himiya.png)
Chemistry, 25.07.2019 02:40 makayladurham19
Lab 6
uestions for heats of reaction
part 1: enthalpy ot balung soda and vinegar reaction
volume of vinegar
25 ml
mass of sodium bicarbonate 1g
initial temperature of vinegar 1 17 °c
final temperature of vinegar 14°c
change in temperature °c (at)
ml of
1. calculate the approximate enthalpy of the reaction in joules. estimate that
vinegar has the same thermal mass as 1.0 ml of water. ignore the thermal mass of the
sodium bicarbonate. note: it takes about 4.2 joules (i) to change 1.0 gram (1.0 ml of water 1.00
2. is the reaction endothermic or exothermic?
3. what steps could be taken to improve the accuracy of your results?
the accuracy could be improved with a better calorimeter, better thermometer.
and a larger sample.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 12:30
Achemist requires 6.00 liters of 0.320 m h2so4 solution. how many grams of h2so4 should the chemist dissolve in water? 121 grams 159 grams 176 grams 188 grams
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 19:30
Si una estrella no tiene paralaje medible, ¿qué puedes inferir?
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 07:40
22. a flask containing 450 ml of 0.50 m h2so4 was accidentally knocked to the floor. how many grams of nahco, do you need to put on the spill to neutralize the acid according to the following equation: h2so4(aq)+2 nahcos(aq) na,so(aq) +2 h20()+2 co2(g) d) 38 g a) 2.3 g b) 9.5 g c) 19 g
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 14:30
For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)→2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2
Answers: 3
You know the right answer?
Questions
![question](/tpl/images/cats/istoriya.png)
History, 07.07.2019 10:30
![question](/tpl/images/cats/en.png)
English, 07.07.2019 10:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 07.07.2019 10:30
![question](/tpl/images/cats/mat.png)
Mathematics, 07.07.2019 10:30
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 07.07.2019 10:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 07.07.2019 10:30
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
English, 07.07.2019 10:30
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/en.png)
English, 07.07.2019 10:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 07.07.2019 10:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 07.07.2019 10:30