Chemistry, 25.11.2020 14:00 victoria1831
Chlorine monoxide accumulates in the stratosphere above Antarctica each winter and plays a key role in the formation of the ozone hole above the South Pole each spring. Eventually, CIO decomposes according to the equation:
2ClO(g) → Cl2(g)+ O2 (g)
The second-order rate constant for the decomposition of ClO is 6.63×10^9 M^–1s^–1 at a particular temperature. Determine the half-life of ClO when its initial concentration is 1.86×10^-8 M .
Answers: 1
Chemistry, 22.06.2019 20:00
Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.
Answers: 3
Chemistry, 23.06.2019 11:40
Which of the following observations indicates that an atom has neutrons? some uncharged particles are scattered by a beryllium atom when it hits a gold foil. some uncharged particles bounce back from a gold foil when it is bombarded with alpha particles. a radiation consisting of uncharged particles is emitted when alpha particles strike beryllium atoms. a radiation which attracts electrons is produced when a beryllium atom is bombarded with alpha particles.
Answers: 2
Chemistry, 23.06.2019 14:30
If 125 cal of heat is applied to a 60.0-g piece of copper at 25.0 ? c , what will the final temperature be? the specific heat of copper is 0.0920 cal/(g? ? c) .
Answers: 1
Chemistry, 23.06.2019 21:00
Jenny takes a piece of paper and dipped it in a bowl of water the paper is now damp and mushy which of the following is our true about the change that occurs when the paper gets wet
Answers: 3
Chlorine monoxide accumulates in the stratosphere above Antarctica each winter and plays a key role...
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