Homework Answers
Electrolysis of the water, in which the electric current is passed into the water leads to the decomposition of the water into the, gases of the hydrogen and the oxygen.
The cathode and anode undergoes reduction and oxidation reaction respectively, and the cell reaction of the electrolysis of the water is given in the following equation,
Cathode reduction 2H+ +
2e-
H2
Anode oxidation 2H2O
O2 + 2H+ +
4e-
Overall reaction 2H2O
O2 +
2H2.
So the most correct option for the above given question is SECOND,
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What happens when water undergoes electrolysis? Water (H20) is split into hydronium (H30) and hydroxide ions...
please help ASAP we looked at how the International Space Station (ISS) uses electrolysis to split...
please help ASAP
we looked at how the International Space Station (ISS) uses electrolysis to split water and make O2 gas for astronauts to breathe in space according to this reaction: Reaction 1: 2 H20 (1) ► 02 (g) + 2 H2(g) The H2 gas produced in Reaction 1 can be further recycled by reacting it with the carbon dioxide (CO2) that the astronauts exhale when they breathe. Reaction 2: CO2 (g) +4 H2(g) → CH4 (g) + 2 H20...
8. Consider what happens when Ca(OH)2, dissolves in water. Write the balanced equation for the reaction....
8. Consider what happens when Ca(OH)2, dissolves in water. Write the balanced equation for the reaction. What can we say about the size of the equilibrium constant for this reaction? What is the [OH-] in a 3.25 mM solution of calcium hydroxide? POH? d. What is the pH of the above solution? [H30]?! What is the concentration of a calcium hydroxide solution with pH = 9.25?
need help with questions EXPERIMENT 9: ELECTROLYSIS AND AVOGADRO'S NUMBER QUESTIONS 1. What solution is used...
need help with questions
EXPERIMENT 9: ELECTROLYSIS AND AVOGADRO'S NUMBER QUESTIONS 1. What solution is used in the apparatus for this experiment? a. Would anything else work? b. If so, what are some examples? 2. What gas forms at the cathode in this experiment? 3. What gas forms at the anode in this experiment? 4. How is the temperature of each of the gases determined? EXPERIMENT ELECTROLYSIS & AVOGADRO'S NUMBER UUUUUUUUUUU INTRODUCTION Electrolysis is the process of causing a chemical...
The following reaction takes place when an electric current is passed through water. It is an...
The following reaction takes place when an electric current is passed through water. It is an example of a reaction 2H200 dolary, 2H2(g) + O2(g) Select one: A decomposition O 8. combination OC. combustion O D. double replacement E single replacement What is the molar mass, to three significant figures, of sodium phosphate, NagPO4? Select one: O A. 2269 8.354 g O C. 1190 D. 1640 E. 308 g How many moles of water, H20, are present in 75.0 g...
Question 19 When 27.0 g of an unknown metal at 88.4 °C is placed in water,...
Question 19 When 27.0 g of an unknown metal at 88.4 °C is placed in water, the metal is cooled and loses 1300 J of energy. If the final temperature of the water and metal is 23.7 °C, what is the specific heat capacity of the metal? The specific heat capacity of water is 4.184 lg-k. O 0.74 J/g-K O 1.4g. O 0.34 J/g-K O 0.98J/g.K Next Question 20 Calculate AH for the following reaction, CaO(s) + CO2(g) - CaCO3(s)...
Need help filling in my data sheet from a lab. My professor said the pressure was...
Need help filling in my data sheet from a lab. My professor said
the pressure was 24.6 inches of Hg and that we needed to convert
that to moles. Im not sure i put that in the correct spot. I
included the lab protocol. Plz plz plz help me fill in the blanks
and let me know if i did something wrong Im very confused haha.
THANKS!!
Equivalent Mass by Electrolysis If the two terminals on any source of DC...
Molten salts When electricity is applied to a molten binary salt, the cation will be reduced...
Molten salts When electricity is applied to a molten binary salt, the cation will be reduced and the anion will be oxidized. The electrolysis of CaBrz (), for example, produces Ca(s) at the cathode (from the reduction of Ca2+) and Br2(1) at the anode (from the oxidation of Br"). If more than one cation is present, only the one with highest reduction potential will be reduced. Similarly, if more than one anion is present, only the one with the highest...
29 to 35 hem. 103 Chapts 3&4 Test , What is the oxidation number of each...
29 to 35
hem. 103 Chapts 3&4 Test , What is the oxidation number of each mom in sodium hydrogen carbonate Na +1,H -1.C=+6,0 b. Na = +1.H=+1. C = -4.0--2 c. Nam +, H -1,C - 0 d. Na --1,H- +1.C-00--2 e. Na - OH-0,C-00-0 30. What base results when K, reacts with water a. H2O'(aq) b. KH(a) co(a) d. KOH(a) e. KO (4) 31. Zn reacts with hydrochloric acid. Zn(s) + 2 HCl(aq) - ZnCl(aq) + Hyg) What...
all of our classes are online now and i have no idea HOW to do this....
all
of our classes are online now and i have no idea HOW to do this.
please explain with steps if you can. thank you!
Class Worksheet Chapter 98p16 (2) (Protected View) - Word out References Mailings Review View Help Tell me what you want to do Enable Editing the Internet can contain viruses. Unless you need to edit it's safer to stay in Protected View 2) How many moles of oxygen are required to burn 3.25 moles of butane...
18. Which statement about redox reactions is not comect? (a) During oxidation a substance loses electrons...
18. Which statement about redox reactions is not comect? (a) During oxidation a substance loses electrons (b) The oxidation number of an element is zero (c) Oxygen is required for addation (d) Oxidation cannot occur without reduction (e) none of the above 19.11.3 g of acetone. (CH3)2C0.is mibed with 20.7 g of oxygen gas (O) and combusted to form carbon dioxide gas and water vapor. How many grams of CO2 are formed in this process? (a) 25.7 g CO2 (c)...
please help ASAP
we looked at how the International Space Station (ISS) uses electrolysis to split water and make O2 gas for astronauts to breathe in space according to this reaction: Reaction 1: 2 H20 (1) ► 02 (g) + 2 H2(g) The H2 gas produced in Reaction 1 can be further recycled by reacting it with the carbon dioxide (CO2) that the astronauts exhale when they breathe. Reaction 2: CO2 (g) +4 H2(g) → CH4 (g) + 2 H20...
8. Consider what happens when Ca(OH)2, dissolves in water. Write the balanced equation for the reaction. What can we say about the size of the equilibrium constant for this reaction? What is the [OH-] in a 3.25 mM solution of calcium hydroxide? POH? d. What is the pH of the above solution? [H30]?! What is the concentration of a calcium hydroxide solution with pH = 9.25?
need help with questions
EXPERIMENT 9: ELECTROLYSIS AND AVOGADRO'S NUMBER QUESTIONS 1. What solution is used in the apparatus for this experiment? a. Would anything else work? b. If so, what are some examples? 2. What gas forms at the cathode in this experiment? 3. What gas forms at the anode in this experiment? 4. How is the temperature of each of the gases determined? EXPERIMENT ELECTROLYSIS & AVOGADRO'S NUMBER UUUUUUUUUUU INTRODUCTION Electrolysis is the process of causing a chemical...
The following reaction takes place when an electric current is passed through water. It is an example of a reaction 2H200 dolary, 2H2(g) + O2(g) Select one: A decomposition O 8. combination OC. combustion O D. double replacement E single replacement What is the molar mass, to three significant figures, of sodium phosphate, NagPO4? Select one: O A. 2269 8.354 g O C. 1190 D. 1640 E. 308 g How many moles of water, H20, are present in 75.0 g...
Question 19 When 27.0 g of an unknown metal at 88.4 °C is placed in water, the metal is cooled and loses 1300 J of energy. If the final temperature of the water and metal is 23.7 °C, what is the specific heat capacity of the metal? The specific heat capacity of water is 4.184 lg-k. O 0.74 J/g-K O 1.4g. O 0.34 J/g-K O 0.98J/g.K Next Question 20 Calculate AH for the following reaction, CaO(s) + CO2(g) - CaCO3(s)...
Need help filling in my data sheet from a lab. My professor said
the pressure was 24.6 inches of Hg and that we needed to convert
that to moles. Im not sure i put that in the correct spot. I
included the lab protocol. Plz plz plz help me fill in the blanks
and let me know if i did something wrong Im very confused haha.
THANKS!!
Equivalent Mass by Electrolysis If the two terminals on any source of DC...
Molten salts When electricity is applied to a molten binary salt, the cation will be reduced and the anion will be oxidized. The electrolysis of CaBrz (), for example, produces Ca(s) at the cathode (from the reduction of Ca2+) and Br2(1) at the anode (from the oxidation of Br"). If more than one cation is present, only the one with highest reduction potential will be reduced. Similarly, if more than one anion is present, only the one with the highest...
29 to 35
hem. 103 Chapts 3&4 Test , What is the oxidation number of each mom in sodium hydrogen carbonate Na +1,H -1.C=+6,0 b. Na = +1.H=+1. C = -4.0--2 c. Nam +, H -1,C - 0 d. Na --1,H- +1.C-00--2 e. Na - OH-0,C-00-0 30. What base results when K, reacts with water a. H2O'(aq) b. KH(a) co(a) d. KOH(a) e. KO (4) 31. Zn reacts with hydrochloric acid. Zn(s) + 2 HCl(aq) - ZnCl(aq) + Hyg) What...
all
of our classes are online now and i have no idea HOW to do this.
please explain with steps if you can. thank you!
Class Worksheet Chapter 98p16 (2) (Protected View) - Word out References Mailings Review View Help Tell me what you want to do Enable Editing the Internet can contain viruses. Unless you need to edit it's safer to stay in Protected View 2) How many moles of oxygen are required to burn 3.25 moles of butane...
18. Which statement about redox reactions is not comect? (a) During oxidation a substance loses electrons (b) The oxidation number of an element is zero (c) Oxygen is required for addation (d) Oxidation cannot occur without reduction (e) none of the above 19.11.3 g of acetone. (CH3)2C0.is mibed with 20.7 g of oxygen gas (O) and combusted to form carbon dioxide gas and water vapor. How many grams of CO2 are formed in this process? (a) 25.7 g CO2 (c)...
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