Homework Answers
1. Consider the reaction: MnO2 (s) + 4 HCl (g)MnCl2 (s) + Cl2 (g) + 2 H20 (g) If 10.00 g of MnO2 ...
1. Consider the reaction: MnO2 (s) + 4 HCl (g)MnCl2 (s) + Cl2 (g) + 2 H20 (g) If 10.00 g of MnO2 and 10.00 g of HCl are reacted, how many grams of MnCl2 can be produced? Show all calculations 2. Consider the following unbalanced equation: NH4NOs(aq) + Na PO4(aq)(NH4)3PO4(aq NaNOs(aq) Assuming you start with 50.0 g of NHNOs and 50.0 g of NasPO4, which is the limiting reagent? What is the theoretical yield (g) of ammonium phosphate? a....
Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid,...
Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq), as described by the chemical equation MnO,(s) + 4 HCl(aq) + MnCl2(aq) + 2 H,0(1) + Cl2(g) How much Mno,(s) should be added to excess HCl(aq) to obtain 275 mL CI,(e) at 25°C and 725 Torr? mass of Mno, Solid ammonium chloride, NH,CI, is formed by the reaction of gaseous ammonia, NH,, and hydrogen chloride, HCI. NH,() + HCI(g) →NH,Cl(s) A 4.70 g...
Consider the following cell at 25°C. Pt | Hg(l) | Hg2Clz(s) | HCl(aq,0.500 mol kgr) |...
Consider the following cell at 25°C. Pt | Hg(l) | Hg2Clz(s) | HCl(aq,0.500 mol kgr) | Cl2(g) | Pt (i) Write the appropriate reduction half-reactions for the system above.(4) (i) Write the Nemst equation for the cell reaction. (ii) Assuming that the Debye-Hückel Limiting Law holds at the given concentration, calculate the potential E for the cell. (iv) Calculate for the cell reaction.
MgCl2 is white as a solid and colorless if it dissolves in water. HCl is also...
MgCl2 is white as a solid and colorless if it dissolves in water. HCl is also colorless when it is dissolved in water If Mg is the limiting reagent, at the end of the reaction the solution will be completely transparent but there will be solid MgCl2 at the bottom of the flask. hydrogen gas will continue to bubble through the solution. Adding more HCl will make the reaction start again and produce more product. the solution will be completely...
Question 1 1 pts Calculate the mass of potassium chloride, KCI, (in grams) formed when 7.00 g of chlorine gas is allowe...
Question 1 1 pts Calculate the mass of potassium chloride, KCI, (in grams) formed when 7.00 g of chlorine gas is allowed to react with 5.00 g of potassium. (write the chemical reaction first) 7.36 7.38 14.7 4.77 9.53 Question 2 1 pts Carbon dioxide is produced in the following reaction: 5 H2C204(aq) + 2 KMnO4 (aq) + 3 H2SO4 (aq) → 10 CO2(g) + 2 MnSO4 (aq) + K2SO4 (aq) + 8 H20 (1) What is the limiting reagent...
answer all questions ral Chemistry Concept 5 pts Question 1 Balance the chemical equation shown below,...
answer all questions
ral Chemistry Concept 5 pts Question 1 Balance the chemical equation shown below, Indicate the stoichiometric coefficients for the reaction. Do not leave answer spaces blank if the coefficient is one (1). AIBrg(aq)+ HBr(aq)- Al(s)+ H2(g) The balanced equation will then be used in the following two questions. 5 pts Question 2 Using the balanced chemical equation from the previous question, how many moles of H2(g) will be formed from 6.24 moles of HBr. Your answer will...
The combustion of octane, C,Hg, proceeds according to the reaction shown. 2C,H,8 (1) + 250,(g) -...
The combustion of octane, C,Hg, proceeds according to the reaction shown. 2C,H,8 (1) + 250,(g) - 16CO2(g) + 18 H,O(1) If 4.10 x 10 mol of octane combusts, what volume of carbon dioxide is produced at 38.0 °C and 0.995 atm? Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq), as described by the chemical equation MnO,(s) + 4 HCl(aq) — MnCl(aq) + 2 H,O(1) + C12(E) How much MnO, (s) should...
The chemical reaction occurring during the discharge of a lead storage battery can be represented by...
The chemical reaction occurring during the discharge of a lead storage battery can be represented by the equation: Pb(S) + PbO_2(s) +2H_2 SO_4 (aq) rightarrow 2 PbSO_4 (s) + 2 H_2 O(I) Which is the limiting reagent and the amount of PbSO_4 produced if 53.0 g of Pb, 77.3g of PbO_2, and 534mL of 0.544 M solution of H_2 SO_4 is used?
Chlorine gas reacts with phosphorus to produce phosphorus pentachloride as shown in the chemical equation below. What i...
Chlorine gas reacts with phosphorus to produce phosphorus pentachloride as shown in the chemical equation below. What is the maximum number of grams of PCls are produced from 3.5 g of Cl2 and excess P? 5C12(g) + 2P(s) → 2PC13(s) 2) What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2O3 with 8.00 g of aluminum according to the unbalanced chemical equation below? Al(s) + Cr2O3(s) → Al2O3(s) + Cr(s) Ammonia...
15. The mixing of which pair of reactants will result in a precipitation reaction? CsI(aq)...
15. The mixing of which pair of reactants will result in a precipitation reaction? CsI(aq) + NaOH(aq) HCl(aq) + Ca(OH)2(aq) K2SO4(aq) + Hg2(NO3)2(aq) NaNO3(aq) + NH4Cl(aq) 16. Which of the following is a precipitation reaction? Zn(s) + 2 AgNO3(aq) 2 Ag(s) + Zn(NO3)2(aq) NaCl(aq) + LiI(aq) NaI(aq) + LiCl(aq) 2 KI(aq) + Hg2(NO3)2(aq) Hg2I2(s) + 2 KNO3(aq) HI(aq) + NaOH(aq) NaI(aq) + H2O(l) None of these are precipitation reactions. 17. Which...
1. Consider the reaction: MnO2 (s) + 4 HCl (g)MnCl2 (s) + Cl2 (g) + 2 H20 (g) If 10.00 g of MnO2 and 10.00 g of HCl are reacted, how many grams of MnCl2 can be produced? Show all calculations 2. Consider the following unbalanced equation: NH4NOs(aq) + Na PO4(aq)(NH4)3PO4(aq NaNOs(aq) Assuming you start with 50.0 g of NHNOs and 50.0 g of NasPO4, which is the limiting reagent? What is the theoretical yield (g) of ammonium phosphate? a....
Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq), as described by the chemical equation MnO,(s) + 4 HCl(aq) + MnCl2(aq) + 2 H,0(1) + Cl2(g) How much Mno,(s) should be added to excess HCl(aq) to obtain 275 mL CI,(e) at 25°C and 725 Torr? mass of Mno, Solid ammonium chloride, NH,CI, is formed by the reaction of gaseous ammonia, NH,, and hydrogen chloride, HCI. NH,() + HCI(g) →NH,Cl(s) A 4.70 g...
Consider the following cell at 25°C. Pt | Hg(l) | Hg2Clz(s) | HCl(aq,0.500 mol kgr) | Cl2(g) | Pt (i) Write the appropriate reduction half-reactions for the system above.(4) (i) Write the Nemst equation for the cell reaction. (ii) Assuming that the Debye-Hückel Limiting Law holds at the given concentration, calculate the potential E for the cell. (iv) Calculate for the cell reaction.
MgCl2 is white as a solid and colorless if it dissolves in water. HCl is also colorless when it is dissolved in water If Mg is the limiting reagent, at the end of the reaction the solution will be completely transparent but there will be solid MgCl2 at the bottom of the flask. hydrogen gas will continue to bubble through the solution. Adding more HCl will make the reaction start again and produce more product. the solution will be completely...
Question 1 1 pts Calculate the mass of potassium chloride, KCI, (in grams) formed when 7.00 g of chlorine gas is allowed to react with 5.00 g of potassium. (write the chemical reaction first) 7.36 7.38 14.7 4.77 9.53 Question 2 1 pts Carbon dioxide is produced in the following reaction: 5 H2C204(aq) + 2 KMnO4 (aq) + 3 H2SO4 (aq) → 10 CO2(g) + 2 MnSO4 (aq) + K2SO4 (aq) + 8 H20 (1) What is the limiting reagent...
answer all questions
ral Chemistry Concept 5 pts Question 1 Balance the chemical equation shown below, Indicate the stoichiometric coefficients for the reaction. Do not leave answer spaces blank if the coefficient is one (1). AIBrg(aq)+ HBr(aq)- Al(s)+ H2(g) The balanced equation will then be used in the following two questions. 5 pts Question 2 Using the balanced chemical equation from the previous question, how many moles of H2(g) will be formed from 6.24 moles of HBr. Your answer will...
The combustion of octane, C,Hg, proceeds according to the reaction shown. 2C,H,8 (1) + 250,(g) - 16CO2(g) + 18 H,O(1) If 4.10 x 10 mol of octane combusts, what volume of carbon dioxide is produced at 38.0 °C and 0.995 atm? Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq), as described by the chemical equation MnO,(s) + 4 HCl(aq) — MnCl(aq) + 2 H,O(1) + C12(E) How much MnO, (s) should...
The chemical reaction occurring during the discharge of a lead storage battery can be represented by the equation: Pb(S) + PbO_2(s) +2H_2 SO_4 (aq) rightarrow 2 PbSO_4 (s) + 2 H_2 O(I) Which is the limiting reagent and the amount of PbSO_4 produced if 53.0 g of Pb, 77.3g of PbO_2, and 534mL of 0.544 M solution of H_2 SO_4 is used?
Chlorine gas reacts with phosphorus to produce phosphorus pentachloride as shown in the chemical equation below. What is the maximum number of grams of PCls are produced from 3.5 g of Cl2 and excess P? 5C12(g) + 2P(s) → 2PC13(s) 2) What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2O3 with 8.00 g of aluminum according to the unbalanced chemical equation below? Al(s) + Cr2O3(s) → Al2O3(s) + Cr(s) Ammonia...
Most questions answered within 3 hours.
-
The financial statements of Apple Inc. show the following
numbers for fiscal year 2017 ($000,000):
Revenue...
asked 3 minutes ago -
Suppose that you are given the following results. Find the
correlation coefficient of the data.
sx...
asked 12 minutes ago -
The width of a tool used for semiconductor manufacturing
is assumed to be normally distributed with...
asked 14 minutes ago -
A
runaway train car that has a mass of 1,400 kg travels at a speed of...
asked 18 minutes ago -
The expected abnormal earnings of a firm that has earnings of
$40,000 with a required equity...
asked 17 minutes ago -
A spherical surface completely surrounds a collection of
charges. Find the electric flux through the surface...
asked 32 minutes ago -
Two capacitors with capacitances of 12 and 18.1 µF,
respectively, are connected in parallel. The system...
asked 19 minutes ago -
Let's say you are a small business owner that provides
business-to-business software-as-a-service to non-profit
organizations. Your...
asked 24 minutes ago -
A circuit is constructed with five resistors and a battery as
shown. The battery voltage is...
asked 32 minutes ago -
A. What is the U.S.
economic system and what do you think are the advantages and...
asked 32 minutes ago -
A student measures the following data in a calorimetry
experiment designed to determine the specific heat...
asked 46 minutes ago -
1) 2H2O(g) → 2H2 (g) + O2 (g) DH = 483.6 kJ
If 5 moles of...
asked 51 minutes ago