<span>If we use 100 mL of
solution:
V(ethylene glycol - C</span>₂H₆O₂) = 0,52 · 100 mL = 52 mL.<span>
V(water) = 0,48 · 100 mL = 48 mL.
m(C</span>₂H₆O₂) = 52 mL · 1,115 g/mL = 57,98 g.<span>
n(C</span>₂H₆O₂) = 57,98 g ÷ 62,07 g/mol = 0,934 mol.<span>
m(H</span>₂O)
= 48 mL · 0,988 g/mL = 47,424 g.<span>
n(H</span>₂O)
= 45,45 g ÷ 18 g/mol = 2,635 mol.<span>
mole fraction of solvent: 2,635 mol / (2,635 mol
+ 0,934 mol) =0,73.
Raoult's Law: p(solution) = mole fraction of
solvent · p(solvent).
<span>p(solution) = 0,73 · 92 torr = 67,33 torr.</span></span>
The molar mass of gas = 206.36 g/mol
<h3>Further explanation</h3>
In general, the gas equation can be written

where
P = pressure, atm
V = volume, liter
n = number of moles
R = gas constant = 0.082 l.atm / mol K
T = temperature, Kelvin
mass (m)= 2.89 g
volume(V) = 346 ml = 0.346 L
T = 28.3 C + 273 = 301.3 K
P = 760 mmHg=1 atm
The molar mass (M) :

Answer:
1)The proximity of the positively charged phosphorous and negatively charged carbon stabilizes the charges.
2) Inductive effects and resonance stabilize the negative charge
Explanation:
both atoms have full octets of electrons( I.e Carbon and say phosphorus). The result can be viewed as a structure in which two adjacent atoms are connected by both a covalent and an ionic bond; normally written X+–Y−. Ylides are thus 1,2-dipolar compounds, and a subclass of zwitterions
The molarity is the number of moles in 1 L of the solution.
The mass of NH₃ given - 2.35 g
Molar mass of NH₃ - 17 g/mol
The number of NH₃ moles in 2.35 g - 2.35 g / 17 g/mol = 0.138 mol
The number of moles in 0.05 L solution - 0.138 mol
Therefore number of moles in 1 L - 0.138 mol / 0.05 L x 1L = 2.76 mol
Therefore molarity of NH₃ - 2.76 M
Answer:
1.22 mL
Explanation:
Let's consider the following balanced reaction.
2 AgNO₃ + BaCl₂ ⇄ Ba(NO₃)₂ + 2 AgCl
The molar mass of silver chloride is 143.32 g/mol. The moles corresponding to 0.525 g are:
0.525 g × (1 mol/143.32 g) = 3.66 × 10⁻³ mol
The molar ratio of AgCl to BaCl₂ is 2:1. The moles of BaCl₂ are 1/2 × 3.66 × 10⁻³ mol = 1.83 × 10⁻³ mol.
The volume of 1.50 M barium chloride containing 1.83 × 10⁻³ moles is:
1.83 × 10⁻³ mol × (1 L/1.50 mol) = 1.22 × 10⁻³ L = 1.22 mL