Answer:
Mass = 16.7 g
Explanation:
Given data:
Volume = 125 mL (125/1000 =0.125 L)
Molarity = 2.50 M
Mass in grams of solute = ?
Solution:
First of all we will calculate the number of moles:
<em>Molarity = number of moles solute / volume in litter</em>
2.50 M = Number of moles of solute/ 0.125 L
Number of moles of solute = 2.50 M × 0.125 L
Number of moles of solute = 0.313 mol
Grams of solute:
<em>Number of moles = mass / molar mass</em>
Mass = number of moles × molar mass
Mass = 0.313 mol × 53.5 g/mol
Mass = 16.7 g
Answer:
13.0 L
Explanation:
To find the volume, you need to use the Ideal Gas Law:
PV = nRT
In this equation,
-----> P = pressure (kPa)
-----> V = volume (L)
-----> n = moles
-----> R = Ideal Gas constant (8.314 kPa*L/mol*K)
-----> T = temperature (K)
After converting the temperature from Celsius to Kelvin, you can plug the given values into the equation and simplify to find "V". The final answer should have 3 sig figs to match the sig figs of the given values.
P = 855 kPa R = 8.314 kPa*L/mol*K
V = ? L T = 26.0 °C + 273.15 = 299.15 K
n = 4.47 moles
PV = nRT
(855 kPa)V = (4.47 moles)(8.314 kPa*L/mol*K)(299.15 K)
(855 kPa)V = 11117.48496
V = 13.0 L
The correct answer based on the given question above would be the first option. <span>When a perfume bottle is opened, some liquid changes to gas and the fragrance spreads around the room because gases do not have a definite volume. Hope this answer helps.</span>
The gas particles will move faster since adding heat will make particles faster. If the gas particles is in a container the container will explode because it can't handle it.
Because Trimyristin cannot dissolve in water therfore making water and unsuitable solvent