subject
Chemistry, 08.09.2021 09:10 mariaaalopezz

In order to determine the concentration of a given potassium Iodide solution. 25 cm of 0.3 percent of Hydrogen Peroxide (0.3w/v) was pipetted unto 50 cm of the Potassium
lodide solution followed by addition or 2 drops of bench HC. The mixture was allowed
to stand for 15 min. The liberated lodine was tired against o 1 M standard Sodium
Thosphate solution
0,5 cm of starch indicator was added when the colour of the lodine was featly
discharged and the titration continued to obtain the end-point. Using an average titrea
25 cm and correct equations of reaction,
Convert the concentration of the Hydrogen peroxide to mol/L
Estimate the concentration of the Possun lodide in the solution provided.

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 21.06.2019 17:10
Nitric oxide (no) can be formed from nitrogen, hydrogen and oxygen in two steps. in the first step, nitrogen and hydrogen react to form ammonia: n2(g) + 2 h_2(g) rightarrow 2 nh_3 (g) delta h = -92. kj in the second step, ammonia and oxygen react to form nitric oxide and water: 4 nh_3(g) + 5 o_2(g) rightarrow 4no(g) + 6 h_2o(g) delta h = -905. kj calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .
Answers: 1
question
Chemistry, 23.06.2019 05:00
How many moles in .5g of sodium bromide?
Answers: 1
question
Chemistry, 23.06.2019 05:00
1. true or false: minerals are inorganic. true false 2. inorganic means that something has never been found alive 3. halite is another name for and is a mineral with a cubic crystal pattern. table salt rock salt
Answers: 2
question
Chemistry, 23.06.2019 05:30
Calculate the temperature rise when 0.2g of propane is used to heat 400cm cubed of water.
Answers: 3
You know the right answer?
In order to determine the concentration of a given potassium Iodide solution. 25 cm of 0.3 percent...
Questions
question
Mathematics, 15.04.2021 05:20
question
Mathematics, 15.04.2021 05:20
question
Mathematics, 15.04.2021 05:20
question
History, 15.04.2021 05:20
question
Mathematics, 15.04.2021 05:20
Questions on the website: 13722363