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3 attempts left Check my work Enter your answer in the provided box. A chemical engineer...
3 attempts left Check my work Enter your answer in the provided box. A chemical engineer determines the mass percent of iron in an ore sample by converting the Fe to Feat in acid and then titrating the Fe?* with MnO4 A 1.0986-g sample was dissolved in acid and then titrated with 31.36 mL of 0.04891 M KMnO4. The balanced equation is 8 H*(aq) + 5 Fe2+ (aq)+ Mno, (aq) → 5 Fe3+(aq) + Mn²+(aq) + 4 H20(1) Calculate the...
To measure the amount of iron in a certain type of iron ore, an analytical chemist...
To measure the amount of iron in a certain type of iron ore, an analytical chemist dissolves a 38.00 g sample in strong acid and titrates endpoint with 316 mL of 0.350 M potassium permanganate (KMnO) solution. to the The balanced chemical equation for the reaction is: 8H+ (aq) + SFe? (aq) + Mno, (aq) - SF2 (aq) + Mn? (aq) + 4H,00) What kind of reaction is this? O precipitation acid- base O redox х 5 ? D D...
WILL GIVE THUMBS UP! 3 attempts et Check my work Enter your answer in the provided...
WILL GIVE THUMBS UP!
3 attempts et Check my work Enter your answer in the provided bex Report problem Hydrogen fluoride is used in the manufacture of Freons (which destroy and in the production of aluminium metal. It is prepared by the reaction one in the stratosphere) CaF2 + H2SO4 - Caso2HF Solution Guided Solution In one process, 6.15 kg of Cal, is treated with an excess of H2SO, and yields 2.65 kg of HF. Calculate the percent yield of...
Saved ork 2 attempts left Check my work Enter your answer in the provided box. In...
Saved ork 2 attempts left Check my work Enter your answer in the provided box. In ice-cream making, the temperature of the ingredients is kept below 0.0°C in an ice-salt bath. Assuming that NaCl dissolves completely and forms an ideal solution, what mass of it is needed to lower the melting point of 4.3 kg of ice to -5.0°C?(Ky of water is 1.86°C/m.) The answer should be rounded to 2 significant figures.
please use this information I provided to answer this... I want to compare the answers. Name...
please use this information I provided to answer
this...
I want to compare the answers.
Name atien: Post Lab Questions Data for calculating amount of iron in the tablet MEnhe diferene in read janly 1 run) initial buret reading (KMnO.) Final buret reading (KMnO) 37-5um10.4omL 55-85.lono Molar Mass of Fe Using the Average molarity in Part A and the balanced equation: MnO +5 Fe+ 8H- Mn+5 Fe" 4 H Calculate the milligrams of iron (Fe) in the iron pill with...
5 attempts left Check my work Enter your answer in the provided box. Nitrogen dioxide is...
5 attempts left Check my work Enter your answer in the provided box. Nitrogen dioxide is used industrially to produce nitric acid, but it contributes to acid rain and photochemical smog. What volume of nitrogen dioxide is formed at 725 torr and 28.2°C by reacting 3.31 cm of copper (d=8.95 g/cm) with 229 mL of nitric acid (d - 1.42 em 68.0% HNO, by mass)? Cu(s) + 4HNO3(aq) + Cu(NO3)2(aq) + 2NO2(8) + 2H20(1) 23.04 10
WILL GIVE THUMBS UP 3 attempts left Check my work Enter your answer in the provided...
WILL GIVE THUMBS UP
3 attempts left Check my work Enter your answer in the provided box. points A sample of 0.5760 g of an unknown compound containing barium ions (Ba) is dissolved in water and treated with an excess of Na,C0y. If the mass of the BaCO, precipitate formed is 0.5343 . what is the percent by mass of Ba in the original unknown compound? ebook Print References 3 attempts left Check my work Enter your answer in the...
Help please??! Molarity of KMnO4 is 0.0100 M Determination of oxalate in Kufe.(0,0...0). Name AB A...
Help please??!
Molarity of KMnO4 is 0.0100 M
Determination of oxalate in Kufe.(0,0...0). Name AB A LOCAL Partner's Name MA R ENDALL Total mass of product synthesized in previous experiment (6) 1720 g Molarity of KMnO. (Record from the label on the container) Trial 1 Trial 2 Trial 2 0.105 1. Mass of sample taken for titration (g) 0.11 2. Initial burette reading (ml) 0 Final burette reading (ml) 20 33.4 22.2 4. Volume of KMnO, used (ml) 2.2 5....
HW 14 <Question 24 (of 29) 0.68 points 10 attempts left Check my work Enter your answer in the provided box. In a dilute nitric acid solution, Fe' reacts with thiocyanate ion (SCN) to form...
HW 14 <Question 24 (of 29) 0.68 points 10 attempts left Check my work Enter your answer in the provided box. In a dilute nitric acid solution, Fe' reacts with thiocyanate ion (SCN) to form a dark red complex: [Fe(H2O)6]3t + SCN-→ H2O + [Fe(H2O)sNCS] 2+ The equilibrium concentration of [Fe(H,oNCSmay be determined by how dark the colored solution is (measured by a spectrometer). In one such experiment, 1.0 mL of 0.20 M Fe(NO)s was mixed with L.0 mL of...
In the titration below acetic acid (CH CooH)i (a) What is the volume of NaOH used to neutralize t...
In the titration below acetic acid (CH CooH)i (a) What is the volume of NaOH used to neutralize the acetic ac neutralized with 0.5 M NaOH. id? (3 pts) (b) What is the concentration of the acetic acid solution? (7 pts) nial Reading 15m Burette Final Reading 32 ml NeDH (aq Known Concentraton )+20mt_灬| 1 of Total volume of 2 on vnegar ies 5 drops acetic acid 25ml c) An acid solution is titrated to the end point by a...
3 attempts left Check my work Enter your answer in the provided box. A chemical engineer determines the mass percent of iron in an ore sample by converting the Fe to Feat in acid and then titrating the Fe?* with MnO4 A 1.0986-g sample was dissolved in acid and then titrated with 31.36 mL of 0.04891 M KMnO4. The balanced equation is 8 H*(aq) + 5 Fe2+ (aq)+ Mno, (aq) → 5 Fe3+(aq) + Mn²+(aq) + 4 H20(1) Calculate the...
To measure the amount of iron in a certain type of iron ore, an analytical chemist dissolves a 38.00 g sample in strong acid and titrates endpoint with 316 mL of 0.350 M potassium permanganate (KMnO) solution. to the The balanced chemical equation for the reaction is: 8H+ (aq) + SFe? (aq) + Mno, (aq) - SF2 (aq) + Mn? (aq) + 4H,00) What kind of reaction is this? O precipitation acid- base O redox х 5 ? D D...
WILL GIVE THUMBS UP!
3 attempts et Check my work Enter your answer in the provided bex Report problem Hydrogen fluoride is used in the manufacture of Freons (which destroy and in the production of aluminium metal. It is prepared by the reaction one in the stratosphere) CaF2 + H2SO4 - Caso2HF Solution Guided Solution In one process, 6.15 kg of Cal, is treated with an excess of H2SO, and yields 2.65 kg of HF. Calculate the percent yield of...
Saved ork 2 attempts left Check my work Enter your answer in the provided box. In ice-cream making, the temperature of the ingredients is kept below 0.0°C in an ice-salt bath. Assuming that NaCl dissolves completely and forms an ideal solution, what mass of it is needed to lower the melting point of 4.3 kg of ice to -5.0°C?(Ky of water is 1.86°C/m.) The answer should be rounded to 2 significant figures.
please use this information I provided to answer
this...
I want to compare the answers.
Name atien: Post Lab Questions Data for calculating amount of iron in the tablet MEnhe diferene in read janly 1 run) initial buret reading (KMnO.) Final buret reading (KMnO) 37-5um10.4omL 55-85.lono Molar Mass of Fe Using the Average molarity in Part A and the balanced equation: MnO +5 Fe+ 8H- Mn+5 Fe" 4 H Calculate the milligrams of iron (Fe) in the iron pill with...
5 attempts left Check my work Enter your answer in the provided box. Nitrogen dioxide is used industrially to produce nitric acid, but it contributes to acid rain and photochemical smog. What volume of nitrogen dioxide is formed at 725 torr and 28.2°C by reacting 3.31 cm of copper (d=8.95 g/cm) with 229 mL of nitric acid (d - 1.42 em 68.0% HNO, by mass)? Cu(s) + 4HNO3(aq) + Cu(NO3)2(aq) + 2NO2(8) + 2H20(1) 23.04 10
WILL GIVE THUMBS UP
3 attempts left Check my work Enter your answer in the provided box. points A sample of 0.5760 g of an unknown compound containing barium ions (Ba) is dissolved in water and treated with an excess of Na,C0y. If the mass of the BaCO, precipitate formed is 0.5343 . what is the percent by mass of Ba in the original unknown compound? ebook Print References 3 attempts left Check my work Enter your answer in the...
Help please??!
Molarity of KMnO4 is 0.0100 M
Determination of oxalate in Kufe.(0,0...0). Name AB A LOCAL Partner's Name MA R ENDALL Total mass of product synthesized in previous experiment (6) 1720 g Molarity of KMnO. (Record from the label on the container) Trial 1 Trial 2 Trial 2 0.105 1. Mass of sample taken for titration (g) 0.11 2. Initial burette reading (ml) 0 Final burette reading (ml) 20 33.4 22.2 4. Volume of KMnO, used (ml) 2.2 5....
HW 14 <Question 24 (of 29) 0.68 points 10 attempts left Check my work Enter your answer in the provided box. In a dilute nitric acid solution, Fe' reacts with thiocyanate ion (SCN) to form a dark red complex: [Fe(H2O)6]3t + SCN-→ H2O + [Fe(H2O)sNCS] 2+ The equilibrium concentration of [Fe(H,oNCSmay be determined by how dark the colored solution is (measured by a spectrometer). In one such experiment, 1.0 mL of 0.20 M Fe(NO)s was mixed with L.0 mL of...
In the titration below acetic acid (CH CooH)i (a) What is the volume of NaOH used to neutralize the acetic ac neutralized with 0.5 M NaOH. id? (3 pts) (b) What is the concentration of the acetic acid solution? (7 pts) nial Reading 15m Burette Final Reading 32 ml NeDH (aq Known Concentraton )+20mt_灬| 1 of Total volume of 2 on vnegar ies 5 drops acetic acid 25ml c) An acid solution is titrated to the end point by a...
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