Homework Answers
False
4 moles of CuO gives 2 moles of Cu2O
4* (63.55+16) CuO gives 2*(63.55*2+16) Cu2O
318.2 g of CuO gives 286.2 g of Cu2O
Hence, 10 g of CuO will give (286.2/318.2)*10 g of Cu2O which is equal to 8.99 g.
Add Answer to:
7. Use the following equation to determine True or False: 4CuO (s) - 2Cu20 (s) +...
The oxidation of copper(I) oxide, Cu2O(s), to copper(II) oxide, CuO(s), is an exothermic process. 2Cu2O(s)+O2(g)⟶4CuO(s)ΔH∘rxn=−292.0 kJmol...
The oxidation of copper(I) oxide, Cu2O(s), to copper(II) oxide, CuO(s), is an exothermic process. 2Cu2O(s)+O2(g)⟶4CuO(s)ΔH∘rxn=−292.0 kJmol Calculate the energy released as heat when 62.29 g Cu2O(s) undergo oxidation at constant pressure. energy released: kJ
The oxidation of copper(I) oxide, Cu2O(s), to copper(II) oxide, CuO(s), is an exothermic process, 2Cu2O(s) +...
The oxidation of copper(I) oxide, Cu2O(s), to copper(II) oxide,
CuO(s), is an exothermic process,
2Cu2O(s) + O2(g) ----> 4CuO(s) Hrxn = -292.0 kj/mol
Calculate the energy released as heat when 42.42 g of Cu2O(s)
undergo oxidation at constant pressure.
The oxidation of copper(l) oxide, CuzO(s), to copper() oxide, CuO(s), is an exothermic process, ann,--292.0 브 mol kJ Calculate the energy released as heat when 42.42 g of Cu20(s) undergo oxidation at constant pressure Number k.J
N2(g)3H2(g)2NH3(g) Answer Consider the following balanced chemical equation 4KO2(s)2H20(I)302(8) +4KOH(s) Determine the mass (in g) of...
N2(g)3H2(g)2NH3(g) Answer Consider the following balanced chemical equation 4KO2(s)2H20(I)302(8) +4KOH(s) Determine the mass (in g) of (a) KOH formed if 10.0 g of KO2 reacts with 10.0 g of H2O. Identify the limiting reactant. Determine the mass (in g) of KOH formed when 20.0 g of (b) KO2 reacts with 10.0 g of H20. Identify the limiting reactant. Determine the mass (in g) of (c) O2 formed when 25.0 g of KO2 reacts with 5.00 g of H20. Identify the...
How many grams of nitrogen gas are formed when 10.0 g of KNO3 decomposes according to...
How many grams of nitrogen gas are formed when 10.0 g of KNO3 decomposes according to the following reaction? The molar mass of KNO3 is 101.11 g/mol 4 KNO3(s) - 2 K2O(s) + 2 N2(8) + 5 O2(8) O 0.698 O 0.362 g 2.778 1.388
10. (a) Determine the mass of calcium oxide (CaO, lime) that can possibly be produced by...
10. (a) Determine the mass of calcium oxide (CaO, lime) that can possibly be produced by heating 44.6 g of calcium carbonate (CaCO). The balanced equation for this reaction is shown in Equation 8 heat CaO(s) +CO2 (g) CaCOs(s) (Eq. 8) (b) Determine the mass of CO2 that would be produced by the reaction described in (a). 11. Joseph Priestley's study of the decomposition of mercury(ID oxide (HgO) with heat led to the discovery of O2. The balanced equation for...
14. Which statement is true, based on the following balanced equation: Pé(s) + 502(g) → 2PzOs...
14. Which statement is true, based on the following balanced equation: Pé(s) + 502(g) → 2PzOs (S) If 0.5 mole of P4 is allowed to react with 2.5 moles of O2, which of the following will be true? a) the Pa will react completely b) the O2 will react completely c) 1 mole of P2Os will be formed d) a and b e) a, b, and c -28
Using avogadros number diagram to figure out the moles and grams of the equation. Particles Avogadro's...
Using avogadros number diagram to figure out the moles and grams of
the equation.
Particles Avogadro's of A Moles of A Formula subscript Moles of Avogadro's number Particles of B number of B Molar mass Molar mass Grams of A Grams of B Show all work and calculations for all parts: Use the equation below to solve the problems: 4A1+30,- 2A1,0 1. How many moles of Alo, can be formed from 10.0 g of Al? 2. How many grams of...
Determine whether the equation is true or false. Where possible, show work to support your conclusion....
Determine whether the equation is true or false. Where possible, show work to support your conclusion. If the statement is false, make the necessary change(s) to produce a true statement. log (x + 7) - log (3x) = log (x + 7) log (3x) Choose the correct answer below. O A. The equation is false. The correct statement is log (x + 7) - log (3x) = log x + 7 3x log (x + 7) OB. The equation is...
Use the following equation (#7): 2C2H6O2 + 3 O2 → 4CO + 6 H2O If you...
Use the following equation (#7):
2C2H6O2 + 3 O2 → 4CO +
6 H2O
If you have 5.88 g of the organic fuel (MW = 62.07 g/mol) and
5.88 g of oxygen gas, how many grams of water will you produce?
ΔΗΞ460k]
AP Chemistry Number of Moles Practice: Part A) Lithium and nitrogen react to produce lithium nitride:6Li(s)+N2(g)→2Li3N(s)....
AP Chemistry Number of Moles Practice: Part A) Lithium and nitrogen react to produce lithium nitride:6Li(s)+N2(g)→2Li3N(s). How many moles of lithium nitride are produced when 0.630 mol of lithium react in this fashion? Part B) How many moles of BCl3 are needed to produce 10.0 g of HCl(aq) in the following reaction? BCl3(g) + 3 H2O(l) → 3 HCl(aq) + B(OH)3(aq) Part C) How many moles of nitrogen are formed when 58.6 g of KNO3 decomposes according to the...
The oxidation of copper(I) oxide, Cu2O(s), to copper(II) oxide,
CuO(s), is an exothermic process,
2Cu2O(s) + O2(g) ----> 4CuO(s) Hrxn = -292.0 kj/mol
Calculate the energy released as heat when 42.42 g of Cu2O(s)
undergo oxidation at constant pressure.
The oxidation of copper(l) oxide, CuzO(s), to copper() oxide, CuO(s), is an exothermic process, ann,--292.0 브 mol kJ Calculate the energy released as heat when 42.42 g of Cu20(s) undergo oxidation at constant pressure Number k.J
N2(g)3H2(g)2NH3(g) Answer Consider the following balanced chemical equation 4KO2(s)2H20(I)302(8) +4KOH(s) Determine the mass (in g) of (a) KOH formed if 10.0 g of KO2 reacts with 10.0 g of H2O. Identify the limiting reactant. Determine the mass (in g) of KOH formed when 20.0 g of (b) KO2 reacts with 10.0 g of H20. Identify the limiting reactant. Determine the mass (in g) of (c) O2 formed when 25.0 g of KO2 reacts with 5.00 g of H20. Identify the...
How many grams of nitrogen gas are formed when 10.0 g of KNO3 decomposes according to the following reaction? The molar mass of KNO3 is 101.11 g/mol 4 KNO3(s) - 2 K2O(s) + 2 N2(8) + 5 O2(8) O 0.698 O 0.362 g 2.778 1.388
10. (a) Determine the mass of calcium oxide (CaO, lime) that can possibly be produced by heating 44.6 g of calcium carbonate (CaCO). The balanced equation for this reaction is shown in Equation 8 heat CaO(s) +CO2 (g) CaCOs(s) (Eq. 8) (b) Determine the mass of CO2 that would be produced by the reaction described in (a). 11. Joseph Priestley's study of the decomposition of mercury(ID oxide (HgO) with heat led to the discovery of O2. The balanced equation for...
14. Which statement is true, based on the following balanced equation: Pé(s) + 502(g) → 2PzOs (S) If 0.5 mole of P4 is allowed to react with 2.5 moles of O2, which of the following will be true? a) the Pa will react completely b) the O2 will react completely c) 1 mole of P2Os will be formed d) a and b e) a, b, and c -28
Using avogadros number diagram to figure out the moles and grams of
the equation.
Particles Avogadro's of A Moles of A Formula subscript Moles of Avogadro's number Particles of B number of B Molar mass Molar mass Grams of A Grams of B Show all work and calculations for all parts: Use the equation below to solve the problems: 4A1+30,- 2A1,0 1. How many moles of Alo, can be formed from 10.0 g of Al? 2. How many grams of...
Determine whether the equation is true or false. Where possible, show work to support your conclusion. If the statement is false, make the necessary change(s) to produce a true statement. log (x + 7) - log (3x) = log (x + 7) log (3x) Choose the correct answer below. O A. The equation is false. The correct statement is log (x + 7) - log (3x) = log x + 7 3x log (x + 7) OB. The equation is...
Use the following equation (#7):
2C2H6O2 + 3 O2 → 4CO +
6 H2O
If you have 5.88 g of the organic fuel (MW = 62.07 g/mol) and
5.88 g of oxygen gas, how many grams of water will you produce?
ΔΗΞ460k]
Most questions answered within 3 hours.
-
C# Visual Studio -The local driver's license
office has asked you to create an application that...
asked 4 minutes ago -
An economy has a per worker production function y=k^1/4, a
marginal propensity to save of 24%,...
asked 8 minutes ago -
You are the Human Resource Officer in your company. You have
been asked to present to...
asked 13 minutes ago -
2. Consider the following application description for a
publishing firm, and translate all of the information...
asked 16 minutes ago -
The manager is seeking to maximize profit. Based on the current
price of $550 per surfboard,...
asked 21 minutes ago -
The population standard deviation (σ) is 2 for a standardized
achievement test that is normally distributed....
asked 26 minutes ago -
What is the future value of 650 after 16 years under 24% annual
compounding? Semiannual compounding?...
asked 26 minutes ago -
A woman drives from Orlando to Tampa in 70 minutes and from
Tampa back to Orlando...
asked 31 minutes ago -
For the following, circle true or false and if false, explain
why.
A) The sampling distribution...
asked 34 minutes ago -
Y = C + I + G + NX (1)
C = α + β(1 −...
asked 1 hour ago -
Sue has 15 tokens for the Huntsville Halloween Faire. Milkshakes
cost 2 tokens and tickets to...
asked 44 minutes ago -
Branded Shoe Company manufactures only one type of shoe and has
two divisions, the Stitching Division...
asked 47 minutes ago