Volume = 250 mL in liters : 250 / 1000 => 0.25 L
Molarity = 0.85 M
Number of moles:
n = M x V
n = 0.85 x 0.25
n = 0.21 moles
Choice B
239,2 g/mol x 3,7 mol = 885,04 g
<u>Answer:</u> Temperature is the independent variable and amount of sugar in the solution is the dependent variable.
<u>Explanation:</u>
Dependent variable is defined as the variable whose value changes with respect to any other variable.
Independent variable is defined as the variable which remain as such and has no effect on the change of another variable. <u>For Example:</u> Time
Solubility is a property of substance to interact with the solvent particles. Thir property is dependent on temperature.
As, the temperature of the system increases, the solubility of the substance will increase and vice-versa.
Hence, temperature is the independent variable and amount of sugar in the solution is the dependent variable.
Answer: Option (B) is the correct answer.
Explanation:
According to Le Chatelier's principle, any disturbance causes in an equilibrium reaction will shift the equilibrium in a direction that will oppose the change.
For example, 
When we increase the temperature then the reaction will shift in a direction where there will be decrease in temperature.
This, means that the reaction will shift in the backward direction.
Thus, we can conclude that if the reaction is at equilibrium and the temperature increases, the equilibrium will shift so that there is more nitrogen dioxide.
