For the following reaction between mohr's salt (iron as feso_4(nh_4)_2so_4 6h_2o) and potassium dichromate (dichromate as k_2cr_2o_7), determine the volume (in milliliters) of a 0.230 m solution of mohr's salt that is needed to fully react with 0.0500 l of 0.230 m potassium dichromate. (the reaction is shown in its ionic form in the presence of a strong acid.)
cr_2o_7^2- + 6fe^2+ + 14h^+ rightarrow 2cr^3+ + 6fe^3+ + 7h_2o
mohr's salt volume = ml
for the same reaction, what volume (in milliliters) of 0.230 m potassium dichromate is required to fully react with 0.0500 l of a 0.230 m solution of mohr's salt
potassium dichromate volume = ml

Answer :

Part 1 : The volume (in milliliters) of a 0.230 M solution of Mohr's salt is 8.33 mL.

Part 2 : The volume (in milliliters) of a 0.230 M solution of potassium dichromate required is 300 mL.

Explanation :

Part 1 :

Using neutralization reaction:

where,

are the n-factor, molarity and volume of

are the n-factor, molarity and volume of

We are given:

Putting values in above equation, we get:

Conversion used : (1 L = 1000 mL)

Thus, the volume (in milliliters) of a 0.230 M solution of Mohr's salt is 8.33 mL.

Part 2 :

Using neutralization reaction:

where,

are the n-factor, molarity and volume of

are the n-factor, molarity and volume of

We are given:

Putting values in above equation, we get:

Conversion used : (1 L = 1000 mL)

Thus, the volume (in milliliters) of a 0.230 M solution of potassium dichromate required is 300 mL.

d.) circle motion requires a force to give it a centripetal acceleration.

the correct answer would be b) volume versus temperature, because they are also directly proportional.