323.5g - 301.2g = 22.3g is the change in mass.
Uhhh, that looks like a game. I don't know how to tell u the answers for that thing -_-
Answer:
The answer to your question is below
Explanation:
Data
Stock solution concentration = 0.00190 M
Volume stock solution = 10 ml
Final volume = 100 ml
Standard solution concentration = ?
Absorbance of the standard solution = 0.62
Process
A) 0.00190 M it was given in the data
B) 0.62 it was given in the data
C) C1V1 = C2V2
C2 = C1V1/V2
C2 = (0.00190)(10)/100
C2 = 0.000190 M
D) Ratio = Absorbance/Concentration = 0.62/0.000190
= 3263.2
2.04 atm is the pressure of the nitrogen gas in the container when 0.316 mol sample of nitrogen gas, N2 (g), is placed in a 4.00 L container at 315 K.
Explanation:
Data given:
moles of nitrogen gas, n = 0.316
volume of the nitrogen gas, V = 4 litres
temperature of the container of nitrogen gas = 315 K
R (gas constant) = 0.08201 Latm/mole K
Pressure of the nitrogen gas on the container, P = ?
from the data given, we will apply ideal gas law equation to calculate the pressure on the nitrogen gas:
PV = nRT
Rearranging the equation,
P =
P =
P = 2.04 atm
The pressure of the nitrogen gas in the container is 2.04 atm.
Answer:
The mass of the silver block is 95.52 grams.
Explanation:
Heat lost by silver will be equal to heat gained by the water
Mass of silver=
Specific heat capacity of silver =
Initial temperature of the silver =
Final temperature of a silver = =
Mass of water=
Specific heat capacity of water=
Initial temperature of the water =
Final temperature of water =
On substituting all values:
we get,
The mass of the silver block is 95.52 grams.