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Important information about Redox titrationHow do I calculate the moles of iron (ore sample) and how do I calculate the mass percent of iron in the ore from this problem;
Ferrous ion reacts with permanganate ion Mno4 in acidic solution to produce the ferric ion Fe3. A 6.893 gram sample of ore was mechanically crushed and then treated with HCl which oxidized all the iron in the ore to the ferrous ion, next, the acid solution containing all the ferrous ions was titrated with.100M of KMno4 solution. The end point was reached when 13.889 ml of potassium permanganate solution was used.
2SO2(g) + O2(g) 2SO3(g) Suppose the volume of this system is compressed to one-half its initial volume and then equilibrium is reestablished.
What mass of Fe(OH)3 would be produced by reacting 75.0mL of a 0.0810M Fe(NO3)3 solution with 125 mL of a .150 M NaOH solution.
Use this information to compare how long it will take to obtain molecular scale mixing of such a gas over i) distance 1*10^-4 m and ii) 10m
Calculate the mass of silver chloride required to plate 245 mg of pure silver. Silver chloride, often used in silver plating, contains 75.27% Ag
A 99.8mL sample of a solution that is 12.0% KI by mass(d=1.093g/mL) is added to 96.7mL of another solution that 14.0%Pb(NO3)2 by mass (d=1.134g/mL). How many grams of PbI2 should form.
Multiple choice questions in Radioactive Decay - electron emitted from the nucleus during some kinds of radioactive decay is known
A 29.0-g sample of water at 260. K is mixed with 51.0 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
C2H4 + 3O2 = 2CO2 + 2H2O if you start with 45 grams of ethylene (C2H4), how many grams of carbon dioxide will be produced.
A snack pack of potato chips holds 28 grams of chips. Based on your data, how much fat is present in a snack pack? In such a bag of chips, there are about 15 grams of carbohydrate and about 1 gram of protein.
A mixture of 0.1079 M CO (g) and 0.1079 M H2O(g) was allowed to react and come to equilibrium at some temperature. If Kc = 5.668, what is the equilibrium molar concentration of H2 for the reaction.
Calculate the number of moles of aluminum, sulfur, and oxygen atoms in 8.00 of aluminum sulfate, Express the number of moles of Al, S, O, and atoms numerically, separated by commas.
Initially A sample of a substance of 23.43 g weight has temperature 24.2 °C then it absorbs heat and reached to temperature 122.0 degree Celsius; calculate the specific heat of this substance if it absorbs 2167 joule heat
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