![Chemistry](/tpl/images/cats/himiya.png)
Chemistry, 16.11.2019 01:31, carriecarl3530
Green checks and red x's are not displayed for parts b, c and d of this question. a pair of students found the temperature of 100. g of water to be 27.80°c. they then dissolved 8.52 g of libr in the water. when the salt had dissolved, the temperature of the water was 39.25°c.
a) calculate δt for the water.
b) the dissolution wasexothermic.
c) the waterabsorbed energy from the dissolution process.
d) based on this observation alone, the entropychange cannot be determined.
e) give the reaction for the dissolution of the salt in water. (use the lowest possible coefficients. include statesofmatter under the given conditions in your answer.)
![answer](/tpl/images/cats/otvet.png)
Answers: 1
Other questions on the subject: Chemistry
![image](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 14:20, kkakk19
Calculate the enthalpy of the following reaction: 4 b (s) + 3 o2 (g) → 2 b2o3 (s) given the following pertinent information: (a) b2o3 (s) + 3 h2o (g) → 3 o2 (g) + b2h6 (g), δhoa = +2035 kj (b) 2 b (s) + 3 h2 (g) → b2h6 (g), δhob = +36 kj (c) h2 (g) + latex: \frac{1}{2} 1 2 o2 (g) → h2o (l), δhoc = −285 kj (d) h2o (l) → h2o (g), δhod = +44 kj
Answers: 3
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 00:40, eamccoy1
Base your answer on the information below and on your knowledge of chemistry. nitrogen dioxide, no2, is a dark brown gas that is used to make nitric acid and to bleach flour. nitrogen dioxide has a boiling point of 294 k at 101.3 kpa. in a rigid cylinder with a movable piston, nitrogen dioxide can be in equilibrium with colorless dinitrogen tetroxide, n2o4. this equilibrium is represented by the equation below. 2no2(g) n2o4(g) + 58kj at standard pressure, compare the strength of intermolecular forces in no2(g) to the strength of intermolecular forces in n2(g).
Answers: 2
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 06:30, 91miketaylor
Particle model to predict what will happen if a sharp object creates a hole in the soccer ball
Answers: 2
Do you know the correct answer?
Green checks and red x's are not displayed for parts b, c and d of this question. a pair of students...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 30.07.2021 21:00
![Konu](/tpl/images/cats/health.png)
Health, 30.07.2021 21:00
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/geografiya.png)
![Konu](/tpl/images/cats/en.png)
English, 30.07.2021 21:00
![Konu](/tpl/images/cats/mat.png)
Mathematics, 30.07.2021 21:00
![Konu](/tpl/images/cats/mat.png)
Mathematics, 30.07.2021 21:10