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Potassium perchlorate is used in the production of fireworks and explosives. It is made in a two-step reaction. First, potassium hypochlorite disproportionates to potassium chloride and potassium chlorate. Then the potassium chlorate disproportionates again to form potassium perchlorate and potassium chloride. The equations are: 4. 3 KCIO (aq) → 2 KCI (aq) + KCIO3 (aq) 4 KCIO; (aq) → 3 KCIO4 (s) + KCl (aq) What mass of KCIO4 (in kg) can be obtained from 2.80 kg of KCIO when these reactions are carried out? Molar masses (g/mol): KCIO 90.55 KCIO4 138.55

Potassium perchlorate is used in the production of fireworks and explosives. It is made in a two-step reaction. First, potassium hypochlorite disproportionates to potassium chloride and potassium chlorate. Then the potassium chlorate disproportionates again to form potassium perchlorate and potassium chloride. The equations are: 4. 3 KCIO (aq) → 2 KCI (aq) + KCIO3 (aq) 4 KCIO; (aq) → 3 KCIO4 (s) + KCl (aq) What mass of KCIO4 (in kg) can be obtained from 2.80 kg of KCIO when these reactions are carried out? Molar masses (g/mol): KCIO 90.55 KCIO4 138.55

Appl Of Ms Excel In Analytical Chemistry
Appl Of Ms Excel In Analytical Chemistry
2nd Edition
ISBN:9781285686691
Author:Crouch
Publisher:Crouch
Chapter2: Basic Statistical Analysis With Excel
Section: Chapter Questions
Problem 12P
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B Brock Sakai : CHEM 1P91 - Fall X b My Questions | bartleby ChemTeam: Combustion Analys X G oxygen molar mass - Google S X + Ims.brocku.ca/portal/site/90b45528-0b04-4bd2-85b6-897046a1e998/page/7011eaa9-4e38-4b06-9e15-1973abb58ef6 Version 264 Assign 4 1 / 2 100% + 2. A mixture of Na2SO4 and its hydrate Na2SO4-10H2O has a mass of 1.5099 g. After heating to drive off all the water, the mass is only 1.1410 g. What is the weight percentage of Na2SO4•10H2O in the original mixture? Report your answer to 4 significant figures. Molar masses: Na,SO4 142.04 g/mol; Na,SO4•10H2O 322.19 g/mol. 3. MnCl2 reacts with AgNO3 in aqueous solutions to produce a precipitate of AgCl that can be filtered and weighed. The balanced equation for the reaction is: MnCl2 (aq) + 2 A£NO3 (aq) → 2 AgCl (s) + Mn(NO3)2 (aq) Suppose you have a mixture that contains MnCl2, plus other compounds that do not react with AgNO3. If 0.5159 g of the mixture yields 0.8715 g of AgCl, what is the percentage of MnCl2 in the mixture? Molar masses: MnCl2 125.84 g/mol AgCl 143.32 g/mol 4. Potassium perchlorate is used in the production of fireworks and explosives. It is made in a two-step reaction. First, potassium hypochlorite disproportionates to potassium chloride and potassium chlorate. Then the potassium chlorate disproportionates again to form potassium perchlorate and potassium chloride. The equations are: 3 KСIO (аq) —2 KCI (аq) + КCІO; (аq) 4 KCIO3 (aq) —3 KСІО4 (s) + KCІ (aq) What mass of KC1O4 (in kg) can be obtained from 2.80 kg of KC1O when these reactions are carried out? Molar masses (g/mol): Kcio 90.55 KСIО4 138.55 5. An organic compound containing only C, H, and possibly O was subjected to combustion analysis. A sample weighing 0.4161 g yielded 0.686 g CO2 and 0.187 g H2O. What is the empirical formula of the compound? 6. For the complete redox reaction given here, (a) break down each reaction into its half reactions; (b)
Transcribed Image Text:B Brock Sakai : CHEM 1P91 - Fall X b My Questions | bartleby ChemTeam: Combustion Analys X G oxygen molar mass - Google S X + Ims.brocku.ca/portal/site/90b45528-0b04-4bd2-85b6-897046a1e998/page/7011eaa9-4e38-4b06-9e15-1973abb58ef6 Version 264 Assign 4 1 / 2 100% + 2. A mixture of Na2SO4 and its hydrate Na2SO4-10H2O has a mass of 1.5099 g. After heating to drive off all the water, the mass is only 1.1410 g. What is the weight percentage of Na2SO4•10H2O in the original mixture? Report your answer to 4 significant figures. Molar masses: Na,SO4 142.04 g/mol; Na,SO4•10H2O 322.19 g/mol. 3. MnCl2 reacts with AgNO3 in aqueous solutions to produce a precipitate of AgCl that can be filtered and weighed. The balanced equation for the reaction is: MnCl2 (aq) + 2 A£NO3 (aq) → 2 AgCl (s) + Mn(NO3)2 (aq) Suppose you have a mixture that contains MnCl2, plus other compounds that do not react with AgNO3. If 0.5159 g of the mixture yields 0.8715 g of AgCl, what is the percentage of MnCl2 in the mixture? Molar masses: MnCl2 125.84 g/mol AgCl 143.32 g/mol 4. Potassium perchlorate is used in the production of fireworks and explosives. It is made in a two-step reaction. First, potassium hypochlorite disproportionates to potassium chloride and potassium chlorate. Then the potassium chlorate disproportionates again to form potassium perchlorate and potassium chloride. The equations are: 3 KСIO (аq) —2 KCI (аq) + КCІO; (аq) 4 KCIO3 (aq) —3 KСІО4 (s) + KCІ (aq) What mass of KC1O4 (in kg) can be obtained from 2.80 kg of KC1O when these reactions are carried out? Molar masses (g/mol): Kcio 90.55 KСIО4 138.55 5. An organic compound containing only C, H, and possibly O was subjected to combustion analysis. A sample weighing 0.4161 g yielded 0.686 g CO2 and 0.187 g H2O. What is the empirical formula of the compound? 6. For the complete redox reaction given here, (a) break down each reaction into its half reactions; (b)
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