Question

In: Chemistry

When did you finally stoped heating Cu and sulfur mixture in chemical reaction of copper lab?...

When did you finally stoped heating Cu and sulfur mixture in chemical reaction of copper lab? Which of the following are redox reactions ?

Explain your answer on the basis of changes in oxidation number. 1. CuSO4 + 2NaOH → Cu(OH) 2 + Na 2SO4

2. 2Al + 3MgSO4 → 3Mg + Al 2(SO4)3

3. 2(NH4)3PO4 + 3Ba(NO3)2 → Ba 3(PO4)2 + 6NH4NO3

4. 2HNO3 + 3H3AsO3 → 2NO + 3H 3AsO4 + H2O

Solutions

Expert Solution


Related Solutions

Question 1 Why is the mixture formed by heating copper and copper (II) chloride poured into...
Question 1 Why is the mixture formed by heating copper and copper (II) chloride poured into excess water to precipitate copper (I) chloride? Question 2 Why is copper (I) oxide made under alkaline rather than acid conditions? Question 3 What is the difference between copper and zinc? Would copper and zinc be as transition metals? Please help me with these questions.
Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is S2 (g) +...
Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is S2 (g) + C (s) <----> CS2 (g)     Kc=9.40 at 900K How many grams of CS2(g) can be prepared by heating 12.4 moles of S2(g) with excess carbon in a 7.20 L reaction vessel held at 900 K until equilibrium is attained?
Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is S2(g) +C(s) <===>...
Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is S2(g) +C(s) <===> CS2(g). Kc=9.40 at 900k How many grams of CS2(g) can be prepared by heating 12.6 moles of S2(g) with excess carbon in a 6.95 L reaction vessel held at 900 K until equilibrium is attained?
Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is S2(g) + C(s)...
Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is S2(g) + C(s) <---> CS2(g) How many grams of CS2(g) can be prepared by heating 21.0 moles of S2(g) with excess carbon in a 9.15 L reaction vessel held at 900 K until equilibrium is attained?
You did a reaction and it resulted in the following mixture of compounds: (Benzoic ring, benzoic...
You did a reaction and it resulted in the following mixture of compounds: (Benzoic ring, benzoic ring with OH, Benzoic ring with COOH) What would you do to isolate and then purify benzoic acid? How would you prove that your final product is pure? Which peaks in the IR and NMR you would look for to see if you got indeed benzoic acid? Mention all, but also specify the peaks that are different from peaks the other compounds have as...
Lab Results: 1 gram of Copper Gluconate; Mass of Cu 0.2g; Mass of gluconate 0.4 g...
Lab Results: 1 gram of Copper Gluconate; Mass of Cu 0.2g; Mass of gluconate 0.4 g 1. Using your own lab results, show your calculations for your moles of copper produced. You must show all work to receive credit. 2. Using your own lab results, show your calculations for your moles of gluconate. You must show all work to receive credit. 3. Using your own lab results, determine the chemical formula of copper gluconate. You must show all work (not...
Experiment 1: Determining the Chemical Formula for Copper Gluconate The experiments in this lab use a...
Experiment 1: Determining the Chemical Formula for Copper Gluconate The experiments in this lab use a compound named copper gluconate. This compound can be formed when gluconic acid (C6H12O7) and copper solutions react with copper (II) carbonates or copper hydroxide. Copper gluconate has a variety of uses and applications. For example, copper gluconate is used as a primary ingredient in the breath mint Certs®. It is also used as a source of copper in nutritional supplements. Your task will be...
What is the reaction for oxidation of copper when heated?
What is the reaction for oxidation of copper when heated?
lab report discussion/conclusion of Chemiluminescence Optimization of a Chemical Reaction
lab report discussion/conclusion of Chemiluminescence Optimization of a Chemical Reaction
Consider the balanced chemical reaction Cu(s) + 2AgNO3(aq) a 2Ag(s) + Cu(NO3)2(aq) a) Write the Complete...
Consider the balanced chemical reaction Cu(s) + 2AgNO3(aq) a 2Ag(s) + Cu(NO3)2(aq) a) Write the Complete Ionic Equation: b) Write the Net Ionic Equation: c) Assign oxidation numbers to all of atoms/ions in the reaction: Cu _____ Ag _____ NO3_____ a Ag _____ Cu _____ NO3 _____ d) Which atom/ion is being oxidized in this reaction? e) Which atom/ion is being reduced in this reaction?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT