A) The rate law can only be on the reactant side and you can only determine it after you get the net ionic equation because of spectators cancelling out. So in this case the rate law is k=[CH3Br]^1 [OH-]^1. The powers are there because the rxn is first order.

B) Since the rxn is first order anything you do to it will be the exact same "counter rxn" per say so since you are decreasing the OH- by 5 the rate will decease by 5

C) The rate will increase by 4 since you are doubling both you have to multiply them both.

8 0

2 years ago

Determine how many gmol, kmol, and lbmols there are in 50 kilograms of n-hexane.

Artist 52 [7]

Answer: 581 gmol

0.581 kmol

$1.28\times 10^{-3}lbmol$

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number $6.023\times 10^{23}$ of particles.

To calculate the moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}=\frac{50\times 1000g}{86g/mol}=581mol$

1. The conversion for mol to gmol

1 mol = 1 gmol

581 mol= $\frac{1}{1}\times 581=581gmol$

2. The conversion for mol to kmol

1 mol = 0.001 kmol

581 mol= $\frac{0.001}{1}\times 581=0.581kmol$

3. The conversion for mol to lbmol

1 mol = $2.2\times 10^{-3}lbmol$

581 mol= $\frac{2.2\times 10^{-3}}{1}\times 581=1.28\times 10^{-3}lbmol$

3 0

3 years ago

The question is below

pogonyaev

The reaction that has the greatest tendency to be reversed in an spontaneous redox reaction is that whose forward standard reduction potential is the lowest (mos negative) one because that means that the reversed reaction will have the highest (most positive) standard reduction potential.

So, the answer is Cr(3+) + 3e- ---> Cr(s) with Eo = -0.91 V, whose reversed reaction is Cr(s) - 3e- ---> Cr (3+) with Eo = +0.91 V.

Answer: the second option Cr(3+) + 3e- ---> Cr(s) Eo = -0.91 V

5 0

2 years ago

Need help please omg Perform each of the following conversions being sure to set up the appropriate conversion factor in each ca

sertanlavr [38]

Answer:

The answer to your question is:

a) 31.75 cm

b) 0.475 miles

c) 2.44 yards

d) 11496.04 inches

Explanation:

Convert

a) 12.5 in to cm

1 in ------------------- 2.54 cm

12.5 in ---------------- x

x = 12.5(2.54)/1 = 31.75/ = 31.75 cm

b) 2513 ft to miles

1 mile -------------- 5280 ft

x miles ------------ 2513 ft

x = 2513(1)/5280 = 0.475 miles

c) 2.23 m to yards

1 m ------------- 1,094 yards

2.23 m ---------- x

x= 2.23x1.094/1 = 2.44 yards

d) 292 m to inches

1 m ---------------- 39.37 inches

292 m ------------- x

x = 292 x 39.37/1 = 11496.04 inches

6 0

3 years ago