Answer:
The concentration of Cl in the solution is 1 M (option E)
Explanation:
MgCl₂ is an ionic compound, where subscript 2 indicates that it contributes 2 anions (negatively charged ions) Cl- to the solution. And you know that 0.20 moles of MgCl₂ are dissolved in water. Then, by multiplying this amount by the subscript, you get the amount of the chlorine ion Cl- that contributes the MgCl₂ compound to the solution. Then it is obtained that said compound contributes 0.40 moles of the Cl- anion.
With a thought similar to the previous case, it can be seen that in this case 0.10 mol of the ionic compound KCl is dissolved in water, and that this compound in turn contributes only a Cl- anion to the solution. Then the KCl compound provides 0.10 moles of the Cl- anion.
On the other hand, molarity is the number of moles of solute that are dissolved in a given volume. It is expressed in the units (moles/liter).
Then, the volume in which the compounds are dissolved in the corresponding unit of measure must be expressed, that is to say in L. Knowing that 1 L is 1000 mL, then 500 mL represents 0.50 L.
And knowing that the MgCl₂ compound contributes 0.40 moles of the Cl- anion while the KCl compound contributes 0.10 moles of the anion, it is possible to say that in total there are 0.50 moles of the Clons present anion in the solution.
So:
<u><em>concentration of Cl= 1 mol/L= 1 M</em></u>
<u><em>The concentration of Cl in the solution is 1 M (option E)</em></u>
4.33898305 is the density
Divide mass/volume
Answer:
d. there is a net consumption of water and carbon dioxide
Explanation:
Photosynthesis, is the process whereby light energy is transform into chemical energy by
green plants and other photosynthesis capable organisms . In the process of photosynthesis, light energy is captured by green plants which it uses to convert carbon dioxide water, and minerals into energy-rich organic compounds and oxygen is evolved as a byproduct.
It is a chemical reaction taking place inside a plant, resulting in the production of food for the survival of the plant.
Photosynthesis takes place in the leaves of a plant in the presence of sunlight and.
H3PO3 because this <span>compound dissolved in water will give you that formula</span>
The formula for molality---> m = moles solute/ Kg of solvent
the solute here is NH₃ because it's the one with less amount. which makes water the solvent.
1) let's convert the grams of NH₃ to moles using the molar mass
molar mass of NH₃= 14.0 + (3 x 1.01)= 17.03 g/ mol
15.0 g (1 mol/ 17.03 g)= 0.881 mol NH₃
2) let's convert the grams of water into kilograms (just divide by 1000)
250.0 g= 0.2500 kg
3) let's plug in the values into the molality formula
molality= mol/ Kg---> 0.881 mol/ 0.2500 kg= 3.52 m