PRACTICE 9.11 When 25.0 mL of 1.0 M H 2 SO 4 is added to 50.0 mL of 1.0 M NaOH at 25.0 °C in a calorimeter, the temperature of the aqueous solution increases to 33.9 °C. Assuming that the specific heat of the solution is 4.18 J/(g • °C), that its density is 1.00 g/mL, and that the calorimeter itself absorbs a negligible amount of heat, calculate Δ H in kilojoules/mol H 2 SO 4 for the reaction. H 2 SO 4 (aq) + 2NaOH(aq) → 2H 2 O(l) + Na 2 SO 4 (aq)
PRACTICE 9.11 When 25.0 mL of 1.0 M H 2 SO 4 is added to 50.0 mL of 1.0 M NaOH at 25.0 °C in a calorimeter, the temperature of the aqueous solution increases to 33.9 °C. Assuming that the specific heat of the solution is 4.18 J/(g • °C), that its density is 1.00 g/mL, and that the calorimeter itself absorbs a negligible amount of heat, calculate Δ H in kilojoules/mol H 2 SO 4 for the reaction. H 2 SO 4 (aq) + 2NaOH(aq) → 2H 2 O(l) + Na 2 SO 4 (aq)
PRACTICE 9.11 When 25.0 mL of 1.0 M H2SO4 is added to 50.0 mL of 1.0 M NaOH at 25.0 °C in a calorimeter, the temperature of the aqueous solution increases to 33.9 °C. Assuming that the specific heat of the solution is 4.18 J/(g • °C), that its density is 1.00 g/mL, and that the calorimeter itself absorbs a negligible amount of heat, calculate
Δ
H
in kilojoules/mol H2SO4 for the reaction.
H
2
SO
4
(aq)
+
2NaOH(aq)
→
2H
2
O(l)
+
Na
2
SO
4
(aq)
Epoxides can be opened in aqueous acid or aqueous base to produce diols (molecules with two OH groups). In this question, you'll explore the
mechanism of epoxide opening in aqueous acid.
2nd attempt
Be sure to show all four bonds at stereocenters using hash and wedge lines.
0
0
Draw curved arrows to show how the epoxide reacts with hydronium ion.
100 +1:
1st attempt
Feedback
Be sure to show all four bonds at stereocenters using hash and wedge lines.
See Periodic Table
See Hint
H
A
5
F
F
Hr
See Periodic Table See Hint
03 Question (1 point)
For the reaction below, draw both of the major organic products. Be sure to consider stereochemistry.
>
1. CH₂CH₂MgBr
2. H₂O
3rd attempt
Draw all four bonds at chiral centers. Draw all stereoisomers formed.
Draw the structures here.
e
130
AN
H
See Periodic Table See Hint
P
C
Br
You may wish to address the following issues in your response if they are pertinent to the reaction(s) you propose to employ:1) Chemoselectivity (why this functional group and not another?)
2) Regioselectivity (why here and not there?)
3) Stereoselectivity (why this stereoisomer?)
4) Changes in oxidation state.
Please make it in detail and draw it out too in what step what happens. Thank you for helping me!
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Calorimetry Concept, Examples and Thermochemistry | How to Pass Chemistry; Author: Melissa Maribel;https://www.youtube.com/watch?v=nSh29lUGj00;License: Standard YouTube License, CC-BY