![subject](/tpl/images/cats/himiya.png)
Chemistry, 12.08.2020 08:01 spookymod8967
A monoprotic weak acid, HA , dissociates in water according to the reaction HA(aq)+H2O(l)↽−−⇀H3O+(aq)+A−(aq) The equilibrium concentrations of the reactants and products are [HA]=0.260 M , [H3O+]=4.00×10−4 M , and [A−]=4.00×10−4 M . Calculate the Ka value for the acid HA.
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 05:00
1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 13:30
Table sugar completely dissolved in water is an example of a?
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 15:30
Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 16:00
He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98
Answers: 2
You know the right answer?
A monoprotic weak acid, HA , dissociates in water according to the reaction HA(aq)+H2O(l)↽−−⇀H3O+(aq...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2020 01:40
![question](/tpl/images/cats/ekonomika.png)
Business, 09.12.2020 01:40
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 09.12.2020 01:50
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 09.12.2020 01:50
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2020 01:50
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2020 01:50
![question](/tpl/images/cats/en.png)
English, 09.12.2020 01:50
![question](/tpl/images/cats/es.png)
Spanish, 09.12.2020 01:50
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2020 01:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2020 01:50
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2020 01:50
![question](/tpl/images/cats/fizika.png)
Physics, 09.12.2020 01:50
![question](/tpl/images/cats/fr.png)
French, 09.12.2020 01:50
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2020 01:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2020 01:50