Answer:
56 g of sucrose is the mass needed
Explanation:
Formula for osmotic pressure → π = M . R . T
8 atm = M . 0.082 L.atm/mol.K . 290 K
8 atm / (0.082 L.atm/mol.K . 290 K) = M → 0.336 mol/L
Let's determine the mass of sucrose that represents 0.336 mol
0.336 mol . 342 g / 1mol = 114.9 g
This is the mass that corresponds to 1L of solution, but we have 0.488 L
Solution density = 1 g/mL → 488 g are contained in 488 mL.
488 mL . 1L / 1000 mL = 0.488 L
Let's make a rule of three:
1L is the volume for 114.9 g of sucrose
In 0.488 L of volume, we need a mass of (0.488L . 114.9 g) 1L = 56 g
The order of the solutions from lowest to highest concentration : A, B, C
<h3>Further explanation</h3>
Given
the following solutions
Required
order of increasing concentration
Solution
Molarity shows the number of moles of solute in every 1 liter of solution.

Solution A : 0.5 moles : 2 L solution = 0.25 M
Solution B : 1 moles : 3 L solution = 0.33 M
Solution C : 1.5 moles : 4 L solution = 0.375 M
The balanced equation based on the scenes is given by ,
X2 + 3Y2 → 2XY3
Given ,
For the reaction depicted in the molecular scenes , X is red and Y is green .
Through observing the scenes , the balanced chemical equation of the scenes is given by ,
The scenes indicates 3 moles of molecule X2 reacts with 9 moles of molecule Y2 to form 6 moles of tetra atomic molecules XY3.
Thus the balanced equation is given by ,
3X2 + 9Y2 → 6XY3
Divide each side of the equation by 3 , we get , the balanced equation as,
X2 + 3Y2 → 2XY3
<h3>What is a balance chemical reaction ?</h3>
A balanced chemical reaction is a type of reaction which include the reactants and products in same amount i.e. the no of mole on both side of the reaction is remains same or balanced .
Learn more about chemical reaction here :
brainly.com/question/1893305
#SPJ4
No, dimethyl amine and triethyl amine are not more soluble in water. Both are soluble in water but not more soluble in water. These are also soluble in alcohol.
Dimethyl amine is a secondary amine while triethyl amine is a tertiary amine. Generally, the small amines are more soluble in water. As the hydrocarbon chain goes on increasing, the solubility goes on decreasing.