The correct answer is that 1.125 mol of NaOH is available, and 60.75 g of FeCl₃ can be consumed.
The mass of NaOH is 45 g
The molar mass of NaOH = 40 g/mol
The moles of NaOH = mass / molar mass
= 45 / 40
= 1.125
Thus, 1.125 mol NaOH is available
3 NaOH + FeCl₃ ⇒ Fe (OH)₃ + 3NaCl
3 mol of NaOH react with 1 mol of FeCl₃
1.125 moles of NaOH will react with x moles of FeCl₃
x = 1.125 / 3
x = 0.375 mol
0.375 mol FeCl₃ can take part in reaction
The molar mass of FeCl₃ is 162 g/mol
The mass of FeCl₃ = moles × mass
= 0.375 × 162
= 60.75 g
Thus, the amount of FeCl₃, which can be consumed is 60.75 g
Answer:
Explanation:
To compare the average speed, we would need some parameters which you clearly didn't state in your question. However, permit me to manufacture some from thin air.
The formula for average speed is given as
Speed = distance / time
From the question, we have the time, but not the distance moved by the horse. Now, assuming the horse moves a distance of 60 meters, then we can say,
Speed = 60 / 60
Where the difference between the two time, t = 120 - 60 = 180 - 120 = 60
So, from my hypothesized example, the average speed of the horse is 1 m/s
What is this you got to do your school work you not homeschooled so your fault
If you are trying to find the molarity of this solution you first need to find the number of moles of sodium chloride that are present in the 0.5g sample. To do this you need to divide the mass of sodium chloride (0.5g) by its molar mass (58.45g/mol) to get 0.00855mol of sodium chloride. Then you divide the number of moles (0.00855mol) by the volume of solution (0.05L) to get 0.171M (The units for molarity is mol/L). Therefore the solution has a concentration of 0.171M.
I hope this helps. Let me know in the comments if anything was unclear or if you were asking a different question.<span />
