I think it’s solar but I’m sorry if that’s wrong :)
Answer:
charles's law.by seeing how changes in temperature affect the pressure of the gas
Answer:
0.2425 M
Explanation:
Given mass = 9.36 g
Molar mass of NaOH = 39.997 g/mol
The formula for the calculation of moles is shown below:
Thus,
![Moles\ of\ NaOH= 0.234\ mol](https://tex.z-dn.net/?f=Moles%5C%20of%5C%20NaOH%3D%200.234%5C%20mol)
Given that:- Volume = 965 mL = 0.965 L ( 1 mL = 0.001 L )
So,
Considering:
![Molarity=\frac{Moles\ of\ solute}{Volume\ of\ the\ solution}](https://tex.z-dn.net/?f=Molarity%3D%5Cfrac%7BMoles%5C%20of%5C%20solute%7D%7BVolume%5C%20of%5C%20the%5C%20solution%7D)
![Molarity=\frac{0.234\ mol}{0.965\ L}=0.2425\ M](https://tex.z-dn.net/?f=Molarity%3D%5Cfrac%7B0.234%5C%20mol%7D%7B0.965%5C%20L%7D%3D0.2425%5C%20M)
To
determine the empirical formula of the compound given, we need to
determine the ratio of the elements present in the compound. To do that we use the given amount of sample
of the compound and the masses of each of the element included. Then, we calculate for the number
of moles of each element. We do as follows:<span>
mass moles
Potassium 5.81 0.1486
Chlorine 5.27 0.1487
Oxygen 18.21 - 5.81 - 5.27 = 7.13 0.4456
Dividing the number of moles of each element with
the smallest value of number of moles, we will have the ratio of the elements:</span>
K = 1 Cl = 1 O = 3
Therefore, the empirical formula would be KClO3.
Answer:
5000 mL
Explanation:
Given data:
Volume in mL of solution = ?
Molarity of solution = 0.500 M
Number of moles of sugar = 2.5 mol
Solution:
Molarity = number of moles of solute/ volume of solution L
Now we will put the values.
0.500 M = 2.5 mol / Volume in L
Volume in L = 2.5 mol / 0.500 M
Volume in L = 5 L (M = mol/L)
Volume in mL.
5 L × 1000 mL / 1 L
5000 mL