Answer:
V = 0.44 L
Explanation:
Moles is denoted by given mass divided by the molecular mass ,
Hence ,
n = w / m
n = moles ,
w = given mass ,
m = molecular mass .
From the question ,
w = 11.27 g
m ( for AgNO₃ ) = 169.87 g/mol
Hence , the moles can be calculated as -
n = w / m
n = 11.27 g / 169.87 g/mol
n = 0.066 mol
Molarity -
Molarity of a substance , is the number of moles present in a liter of solution .
M = n / V
M = molarity
V = volume of solution in liter ,
From the question ,
M = 0.150 M
n = 0.066 mol ( calculated above )
The final volume of the solution can be calculated by using the above equation ,
M = n / V
0.150 M = 0.066 mol / V
V = 0.44 L
Answer:
Second step of the mechanism is slow step.
Explanation:
The given chemical reaction is as follows
The mechanism of the reaction is as follows.
The rate of the reaction.
Therefore, Step -2 must be slow.
Answer:
26.3 moles of O₂ are needed to react completely with 35.0 mol of FeCl₃
Explanation:
To determine the number of moles of O₂ that are needed to react completely with 35.0 mol of FeCl₃, it is possible to use the reaction stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), and rule of three as follows: if 4 moles of FeCl₃ react with 3 moles of O₂, 35 moles of FeCl₃ with how many moles of O₂ will it react?
moles of O₂= 26.25 ≅ 26.3
<u><em>26.3 moles of O₂ are needed to react completely with 35.0 mol of FeCl₃</em></u>
You need the heat of fusion of ice to solve this problem. <span>the heat of fusion of water = 334 J/g </span><span>
the formula to solve for heat is </span>q = m·ΔH<span>f</span>
just plug the values
q= (50.0 g) (334 j/g)= 16700 joules or 16.7 Kj