Homework Answers
Al2(SO3)3(aq) + 6NaOH ---> 3Na2SO3(aq) +
2Al(OH)3(s)
1 mol Al2(SO3)3(aq) = 6 mol NaOH = 3 mol Na2SO3(aq) = 2 mol
Al(OH)3(s)
a) No of mol of Al2(SO3)3 reacted = 5/150 = 0.033 mol
No of mol of NaOH taken = 5/40 = 0.125 mol
limiting reactant = NaOH
b) No of mol of NaOH FORMED = 0.125*2/6 = 0.042 mol
MASS OF Al(OH)3 FORMED = 0.042*78 = 3.28 g
c) excess reagent = Al2(SO3)3
No of mol of excess Al2(SO3)3 = 0.033-(0.125/6) = 0.0122 mol
mass of excess Al2(SO3)3 = 0.0122*150 = 1.83 g
Add Answer to:
i would really appreciate a quick answer please, thank you 6. Given the following equation (12 marks) _Al2(SO3)3 (aq...
i would really appreciate a quick answer please, thank you 2. A 82.5 g sample of...
i
would really appreciate a quick answer please, thank you
2. A 82.5 g sample of iron bar is placed in a coffee cup calorimeter containing 150 ml of water at 22.6 °C. The final temperature of the water and the iron bar is 40.0°C. Assume that the heat capacity of the calorimeter is negligible. (SFe=0.444 J/g °C, SH2o = 4.184 Jlg °C). Report answers to 3 sf (significant figures). a. Calculate the initial temperature (°C) of the iron bar....
i would really appreciate a quick answer please, thank you 11. Label the diagram below ofa...
i
would really appreciate a quick answer please, thank you
11. Label the diagram below ofa galvanic cell for the following reaction: (15 marks). H2(g)+ Cl2(g) -2 H (aq) + 2 Cl-(aq) Write the oxidation and reduction half-cell reactions (4 marks) a. Oxidation Half reaction Reduction Half Reaction b. On the diagram of the galvanic cell, i) Identify the anode and cathode metals, ii) indicate the direction of electron flow through the circuit, ii) Indicate the direction of the anion...
i would really appreciate a quick answer please, thank you 4. Answer the following question (13...
i
would really appreciate a quick answer please, thank you
4. Answer the following question (13 marks) a. Caffeine (C&H 0N4O2) is natural stimulant most commonly found in tea, coffee and cacao plants. Calculate the percentage composition of the elements present. (5 marks) b. Question 4 continued. Calculate the mass of nitrogen in 20.6g of caffeine. (2 marks) c. The combustion of caffeine produces carbon dioxide; water and nitrogen gas. Determine the mass of carbon dioxide produced from the combustion...
III(15pts) Some commercial drain cleaners make use of the following reaction to declog drains. NaOH(aq) + 2 Al(s) +6...
III(15pts) Some commercial drain cleaners make use of the following reaction to declog drains. NaOH(aq) + 2 Al(s) +6 H (1) ...> 2 NaAl(OH)/(aq) + 3 H2(g) 18 4,63 grams of Al(s) are reacted with excess NaOH and water, what volume of H.(R) can be produced at 742 mmHg, and 23.8 "C?
question has 3 parts please help. due tonight 6. The following questions (parts A, B and...
question has 3 parts please help. due tonight
6. The following questions (parts A, B and C) are unrelated to each other and are based on the following reaction. 2Al(s) + 3Cl2(8) ► 2A1CH() Al Determine the limiting reactant when 56.2 grams of Al (molar mass 27.0 g/mol) are reacted with 198 grams of Cl2 (molar mass = 70.9 g/mol). 56.28 2mol = 4.16 MOLAI (27.08 not correct method 198 get xml) . 5.59 MOL CIL Al IS LIMITING REACTANT...
4. Balance the following equations: Al(NO)(aq) + NH.OH(aq) Al(OH),(s) + (NH) (NO) (aq) classify Fe(OH)3(s) +...
4. Balance the following equations: Al(NO)(aq) + NH.OH(aq) Al(OH),(s) + (NH) (NO) (aq) classify Fe(OH)3(s) + __H,SO.(aq) → ___ Fer(SO.)s(aq) + _ H2O(1) classify CH,CI(I) + O2(g) → - CO2(g) + H2O(g) +- HCI(9) classify Ca(s) + __P_Os() → _ Cao(s) + - P.(I) classify LI.CO() - - HCl(aq) + LICH(aq) H2O(l) + - CO2(g) classify NO2(g) → N2(g) + H2O(1) classify + N2H400) + - 5. P.(s) + O2(g) → - P.Os(s) balance, then classify Calculate the following, with...
I would like help understanding these questions. Thank you for your time! 4. Consider the following...
I would like help understanding these questions.
Thank you for your time!
4. Consider the following unbalanced equation: AgNO3(aq) + Cu(s) → Cu(NO3)2 (aq) + _ _Ag (s) (a) Balance the equation. (b) Calculate the amount of metallic silver (in grams) that can be produced from a solution containing 5.00 g of metallic copper and 20.0 g of silver(I) nitrate. (c) Calculate the amount of the reagent (in grams) of the excess reagent. (d) Calculate the percent yield if the...
I would really appreciate a detailed answer!! :) thank you PHYS208 Week 2 3. A thin...
I would really appreciate a detailed answer!! :) thank
you
PHYS208 Week 2 3. A thin rod with uniform charge +Q and length L is placed with one end at (0,b) and the other end at (0, -b). a. Find the electric field at the point (a,0) along the x axis. b. If a point charge +2q is then placed at (a,0), find the force exerted on the point charge by the rod. ANSWERS: a-k@ (0,b) ī aU62ta2 b- 2kQq...
I need each question answered. #6-12 6. Calculate the number of nitrogen atoms are present in...
I need each question answered. #6-12
6. Calculate the number of nitrogen atoms are present in each of the following quantities. A) 8.45x10 kg nitric acid B) 1280 dg of calcium nitrate 7. Write the empirical formula of the following compounds. A) H2S2 D) Co:PO B) ZnP203 E) C:H16012 C) C12H1oCl2 F) Au204 8. First balance the equation below the answer the questions that follow. ZrCN(aq) + Al2(S2O3)3(aq) — Zr2S2O3(s) + A) How many moles of ZnSO, of can form...
may you please provide details on how you recieved the answer thank you. 3 pages. Chem...
may
you please provide details on how you recieved the answer thank
you.
3 pages.
Chem 143 - Lab Pre-lab Exercise Show the details of each calculation to get full credit 1. Magnesium oxide, a white powdery substance can often be made by heating magnesium metal in presence of oxygen. a. Write the balanced chemical equation for this reaction (including the state symbols such as (s) () or (aq)] b. When 10.1 g magnesium is allowed to react with 10.5g...
i
would really appreciate a quick answer please, thank you
2. A 82.5 g sample of iron bar is placed in a coffee cup calorimeter containing 150 ml of water at 22.6 °C. The final temperature of the water and the iron bar is 40.0°C. Assume that the heat capacity of the calorimeter is negligible. (SFe=0.444 J/g °C, SH2o = 4.184 Jlg °C). Report answers to 3 sf (significant figures). a. Calculate the initial temperature (°C) of the iron bar....
i
would really appreciate a quick answer please, thank you
11. Label the diagram below ofa galvanic cell for the following reaction: (15 marks). H2(g)+ Cl2(g) -2 H (aq) + 2 Cl-(aq) Write the oxidation and reduction half-cell reactions (4 marks) a. Oxidation Half reaction Reduction Half Reaction b. On the diagram of the galvanic cell, i) Identify the anode and cathode metals, ii) indicate the direction of electron flow through the circuit, ii) Indicate the direction of the anion...
i
would really appreciate a quick answer please, thank you
4. Answer the following question (13 marks) a. Caffeine (C&H 0N4O2) is natural stimulant most commonly found in tea, coffee and cacao plants. Calculate the percentage composition of the elements present. (5 marks) b. Question 4 continued. Calculate the mass of nitrogen in 20.6g of caffeine. (2 marks) c. The combustion of caffeine produces carbon dioxide; water and nitrogen gas. Determine the mass of carbon dioxide produced from the combustion...
III(15pts) Some commercial drain cleaners make use of the following reaction to declog drains. NaOH(aq) + 2 Al(s) +6 H (1) ...> 2 NaAl(OH)/(aq) + 3 H2(g) 18 4,63 grams of Al(s) are reacted with excess NaOH and water, what volume of H.(R) can be produced at 742 mmHg, and 23.8 "C?
question has 3 parts please help. due tonight
6. The following questions (parts A, B and C) are unrelated to each other and are based on the following reaction. 2Al(s) + 3Cl2(8) ► 2A1CH() Al Determine the limiting reactant when 56.2 grams of Al (molar mass 27.0 g/mol) are reacted with 198 grams of Cl2 (molar mass = 70.9 g/mol). 56.28 2mol = 4.16 MOLAI (27.08 not correct method 198 get xml) . 5.59 MOL CIL Al IS LIMITING REACTANT...
4. Balance the following equations: Al(NO)(aq) + NH.OH(aq) Al(OH),(s) + (NH) (NO) (aq) classify Fe(OH)3(s) + __H,SO.(aq) → ___ Fer(SO.)s(aq) + _ H2O(1) classify CH,CI(I) + O2(g) → - CO2(g) + H2O(g) +- HCI(9) classify Ca(s) + __P_Os() → _ Cao(s) + - P.(I) classify LI.CO() - - HCl(aq) + LICH(aq) H2O(l) + - CO2(g) classify NO2(g) → N2(g) + H2O(1) classify + N2H400) + - 5. P.(s) + O2(g) → - P.Os(s) balance, then classify Calculate the following, with...
I would like help understanding these questions.
Thank you for your time!
4. Consider the following unbalanced equation: AgNO3(aq) + Cu(s) → Cu(NO3)2 (aq) + _ _Ag (s) (a) Balance the equation. (b) Calculate the amount of metallic silver (in grams) that can be produced from a solution containing 5.00 g of metallic copper and 20.0 g of silver(I) nitrate. (c) Calculate the amount of the reagent (in grams) of the excess reagent. (d) Calculate the percent yield if the...
I would really appreciate a detailed answer!! :) thank
you
PHYS208 Week 2 3. A thin rod with uniform charge +Q and length L is placed with one end at (0,b) and the other end at (0, -b). a. Find the electric field at the point (a,0) along the x axis. b. If a point charge +2q is then placed at (a,0), find the force exerted on the point charge by the rod. ANSWERS: a-k@ (0,b) ī aU62ta2 b- 2kQq...
I need each question answered. #6-12
6. Calculate the number of nitrogen atoms are present in each of the following quantities. A) 8.45x10 kg nitric acid B) 1280 dg of calcium nitrate 7. Write the empirical formula of the following compounds. A) H2S2 D) Co:PO B) ZnP203 E) C:H16012 C) C12H1oCl2 F) Au204 8. First balance the equation below the answer the questions that follow. ZrCN(aq) + Al2(S2O3)3(aq) — Zr2S2O3(s) + A) How many moles of ZnSO, of can form...
may
you please provide details on how you recieved the answer thank
you.
3 pages.
Chem 143 - Lab Pre-lab Exercise Show the details of each calculation to get full credit 1. Magnesium oxide, a white powdery substance can often be made by heating magnesium metal in presence of oxygen. a. Write the balanced chemical equation for this reaction (including the state symbols such as (s) () or (aq)] b. When 10.1 g magnesium is allowed to react with 10.5g...
Most questions answered within 3 hours.
-
A speeding car is traveling along a straight road with a
constant speed of 100 km/hour....
asked 8 minutes ago -
When 60.1 gg of calcium is reacted with nitrogen gas, 31.7 gg of
calcium nitride is...
asked 13 minutes ago -
The random variable X is exponentially distributed, where X
represents the time it takes for a...
asked 27 minutes ago -
a) Write a verilog module for 1:4 Demultiplexer using verilog
primitives.
b) Design 1-to-4 DEMUX using...
asked 22 minutes ago -
MATLAB
write a MATLAB function (1) output a third-order polynomial
function with the coefficients as the...
asked 35 minutes ago -
A z-score
communicates a raw score’s "relative standing"
under the normal curve in relation to:
asked 43 minutes ago -
An object is vibrating on a spring with the following equation
of motion:
?=(30 ??)cos((2?)/(160)?)
a)...
asked 43 minutes ago -
Vulcan Flyovers offers scenic overflights of Mount St. Helens,
the volcano in Washington State that explosively...
asked 45 minutes ago -
If organizations do not adapt fast enough and move incrementally
from the twentieth-century model to the...
asked 46 minutes ago -
A helium balloon with 2.5L of gas has a gauge pressure of 10,000
Pa. The balloon...
asked 50 minutes ago -
What is responsible for Jupiter's enormous magnetic field?
asked 1 hour ago -
At the end of the year, a company offered to buy 5,000 units of
a product...
asked 1 hour ago