A container has 800.0 mL of an aqueous solution containing K+ ions. How many grams of K+ ions are in the solution if the molarit
1 answer:
Answer: There are 20.24 grams of in the solution if the molarity is 0.649 M.
Explanation:
Molarity equals number of moles in a liter of solution as follows.
and,
Therefore,
Now, putting values in the above formula as follows.
(convert the volume from milliliter to liter)
Thus, there are 20.24 grams of in the solution if the molarity is 0.649 M.
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<h2>Hello!</h2>
The answer is: 4.77atm
<h2>Why?</h2>Since there's a fixed volume, we can use the the Gay-Lussac's Law which stablish a relation between the pressure and the temperature:
<em>P</em> is the volume of the gas
<em>t</em> is the temperature of the gas
<em>k </em>is the proportionality constant
We also have the following equation:
Where:
We are asked to find the pressure in atm, so we must convert 483.73kPa to atm:
Then,
Have a nice day!
Answer:
Honey
Explanation:
Backing soda:
Backing soda is a compound that is made up of only one kind of salt called NaHCO3 or sodium hydrogen carbonate. All the molecules of NaHCO3 are identical and we know that a mixture is something made up of two or more than two kinds of things, therefore baking soda cannot be referred to as mixture.
Carbon:
Carbon is not a mixture because its just an element that composed diffreent compounds by reacting with different other elements. In its oure form carbon is not a mixture, but if it is combined with some other substance it can form mixture.
Orange juice:
It depends on what kind of orange juice we are talking about. If we are talking about pure orange juice that is made from fresh oranges,then no - it cannot be called as mixture. However, if sugars,flavors and other preservatives are added like those available in market then it can be a mixture.
Honey:
Honey is a mixture of at-least 181 types of components in which most of all are sugars. These components mix through complex process and give the honey its specific sugary taste. You can see some of the constituent components of honey in attached figure.
Hope it help!
