Asample of an iron ore is dissolved in acid, and the iron is converted to fe2+. the sample is then titrated with 47.20 ml of 0.02240 m mno4β solution. the oxidation-reduction reaction that occurs during titration is(a) how many moles of mno4β were added to the solution? (b) how many moles of fe2+ were in the sample? (c) how many grams of iron were in the sample? (d) if the sample had a mass of 0.8890 g, what is the percentage of iron in the sample?
Answers: 3
Chemistry, 22.06.2019 10:00
Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5
Answers: 3
Chemistry, 22.06.2019 10:50
An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons
Answers: 2
Chemistry, 22.06.2019 11:00
What is the temperature of 0.750 mol of a gas stored in a 6,850 ml cylinder at 2.21 atm? . 2.95 k 5.24 k 138 k 246 k
Answers: 3
Asample of an iron ore is dissolved in acid, and the iron is converted to fe2+. the sample is then t...
Mathematics, 15.07.2021 19:40
English, 15.07.2021 19:40
English, 15.07.2021 19:40
Mathematics, 15.07.2021 19:40
English, 15.07.2021 19:40
History, 15.07.2021 19:40
History, 15.07.2021 19:40
English, 15.07.2021 19:40
Spanish, 15.07.2021 19:40
Physics, 15.07.2021 19:40