aryanmani2005

Given the data
2 S(s) + 3 O2(g) ? 2 SO3(g) ?H = -790 kJ
S(s) + O2(g) ? SO2(g) ?H = -297 kJ
SO3(g) + H2O(l) ? H2SO4(l) ?H = -132 kJ
use Hess's law to calculate ?H for the reaction
2 SO2(g) + O2(g) ? 2 SO3(g).
?H = ___ kJ

Given: S (s) + O2 (g) ? SO2 (g) ?H

why the H-O-H bond anglein water is less than the H-N-H bond anglein ammonia.
(water bond angle 104.5 deg,ammonia 107.3 deg)

What amino Acid is H, H, N, H, C, CH3, C, OH, O, O ? What functional groups are present?

C4H6 structure that meets the conditions 1 sp, 2 sp2 and 1 sp3

The molar heat of vaporization for water is 44.01 kj/mol at 298 K and 40.79 kj/mol at 373 K. Write a thermodynamic cycle explaining how you would calculate the value at 298 K. If you knew the value at 373 K and show what other data you would need to compute it. Give a qualitative explanation for the difference between these values

What are the H-C-H bond angles in Ethane, Ethene, and Ethyne?

Write a summary about the activity of jogging and how we benefit from jogging.