True. Refer to the heat equation of water
<h3>
Answer:</h3>
43.33 atm
<h3>
Explanation:</h3>
We are given;
Mass of C₆H₆ = 26.2 g
Volume of the container = 0.25 L
Temperature = 395 K
We are required to calculate the pressure inside the container;
First, we calculate the number of moles of C₆H₆
Molar mass of C₆H₆ = 78.1118 g/mol.
But; Moles = mass ÷ Molar mass
Moles of C₆H₆ = 26.2 g ÷ 78.1118 g/mol.
= 0.335 moles C₆H₆
Second, we calculate the pressure, using the ideal gas equation;
Using the ideal gas equation, PV = nRT , Where R is the ideal gas constant, 0.082057 L.atm/mol.K
Therefore;
P = nRT ÷ V
= (0.335 mol × 0.082057 × 395 K) ÷ 0.25 L
= 43.433 atm
Therefore, the pressure inside the container is 43.33 atm
Answer:
2.00x10⁵L
Explanation:
<em>...That contains 125g of mercury(I) chloride...</em>
<em />
The molarity, M, of a solution represents the moles of solute (Mercury(I) chloride), per liter of solution.
To solve this question, we need to determine the moles of mercury(I) chloride present in 125g. Then, with molarity, we can find the volume of the solution:
<em>Moles Mercury(I) chloride -Molar mass: 271.52g/mol-:</em>
125g * (1mol / 271.52g) = 0.460 moles
<em>Volume:</em>
0.460 moles * (1L / 2.3x10⁻⁶mol) =
<h3>2.00x10⁵L</h3>
Answer:c>b>a
Explanation:
Freezing point depends on relative molecular mass and nature of intermolecular forces. In glycerin, the relative molecular is the least of the the molecules are held together only by weak Vanderwaals forces. Phenol has stronger dipole interactions and higher relative molecular mass. Potassium bromide is ionic and posses very strong bonds hence it has the highest freezing point.
CaVa/CbVb = nA/nB
0.075*x /0.01*100 = 2/1
0.075x = 0.01*200
x = 2/0.075
x = 26.67ml
