11/04/21

General Chemistry Homework
Evaluate the following reaction and determine if a precipitate forms. 2AgC2H3O2(aq) + Ca(NO3)2(aq)> 2AgNO3+Ca(C2H3O2)2 Choose one: AgNO3 precipitate forms Ca(C2H3O2)2 precipitate forms No... more
Follows • 2
Expert Answers •1

11/04/21

A 3.28 mol sample of Kr has a volume of 319 mL. How many moles of Kr are in a 4.78 L sample at the same temperature and pressure?
Follows • 2
Expert Answers •1

11/04/21

AP CHEMISTRY GAS LAWS l
A sample of Group 1 bromide weighing 2.000 g was converted to a gas at 504.0 degrees C and 1.000 atm pressure. The resulting vapor occupied a volume of 1238 mL. Identify the Group 1 metal present... more
Follows • 2
Expert Answers •1

11/04/21

AP CHEMISTRY GAS LAWS SUMMARY
In an industrial process, 200. L of a gas at 91.kPa and 21 degrees C is compressed into a vessel that has a volume of 15.2 L and heated to 420. degrees C. What is its final pressure?
Follows • 2
Expert Answers •1

11/04/21

A solution with a volume of 4.0 L that contains 2.0 mol of KNO3 has a molarity of 8.0 M 0.50 M 2.0 M 4.0 M
Follows • 2
Expert Answers •1

11/04/21

Consider the titration of 25 mL

Consider the titration of 25 mL of 0.100M benzylamine with 0.0500 M HCl. What is the pH of the solution when 0.00 mL, 35.00 mL, 50.00 and 60.00 mL of acid has been added? Sketch the titration... more
Follows • 2
Expert Answers •1

11/04/21

Calculate the enthalpy change using Hess Law
using the given chemical reaction below with the net chemical reaction, calculate the enthalpy change. Net Reaction: H2 + O  >>>>>> H2O 2H2O  >>>>>> 2H2 +... more
Follows • 3
Expert Answers •1

11/04/21

Calculate the enthalpy change using Hess Law
using the given chemical reaction below with the net chemical reaction, calculate the enthalpy change. Net Reaction: 4NH3 + 3O2  >>>>>>  2N2 + 6H2O N2 +... more
Follows • 2
Expert Answers •1

11/04/21

75.4 grams of C2H3Br3 reacts with 47.1 grams of O2 to produce CO2. 4C2H3Br3 + 11O2 → 8CO2 + 6H2O + 6Br2 find the Percent Yield, Theoretical Yield and Actual YieldLimiting Reactant Excess Reactant
Follows • 2
Expert Answers •1

11/04/21

chemistry question
what is the complete balanced iconic equation for aluminum nitrate and sodium hydroxide are mixed in an aqueous solution and they react
Follows • 2
Expert Answers •1

11/04/21

Thermochemistry. Answer, step by step please. (show work)
6) NaHCO3 decomposes into Na2CO3, CO2 , and H2O ∆H = 91.5 kJ a. Write a balanced chemical equation that includes heat as a reactant or product. b. What volume of Carbon dioxide is produced when 314... more
Follows • 2
Expert Answers •1

11/03/21

Thermochemistry. Answer, step by step please. (show work)
Combustion of C8H18(g) ∆H = -5076 kJ a. Write a balanced chemical equation that includes heat as a reactant or product. b. What volume of products can be made if 120 kilojoules are released?
Follows • 2
Expert Answers •1

11/03/21

finding mass or volume from percent concentration
To reduce dangerous swelling in the brain, physicians sometimes administer intravenous hypertonic saline, a 7.0 % (w/v) solution of salt NaCl in water. Calculate the mass of NaCl in 35.0 mL of this... more
Follows • 2
Expert Answers •1

11/03/21

using molarity to find solute mass and solute volume
Calculate the volume in liters of a 0.0023 mM calcium sulfate solution that contains 125.g of calcium sulfate CaSO4. Round your answer to 2 significant digits.
Follows • 2
Expert Answers •1

11/03/21

using molarity to find solute mass and volume
A chemist adds 120.0mL of a ×8.74 x 10^−4 mM magnesium fluoride MgF2 solution to a reaction flask. Calculate the mass in micrograms of magnesium fluoride the chemist has added to the flask. Round... more
Follows • 2
Expert Answers •1

11/03/21

When 0.365 g of sodium metal is added to an excess of hydrochloric acid, 3790 J of heat are produced. What is the enthalpy of the reaction as written? 2Na(s)+2HCl(aq)⟶2NaCl(aq)+H2(g)

Follows • 2
Expert Answers •1

11/03/21

Given that H2(g)+F2(g)⟶2HF(g)Δ𝐻∘rxn=−546.6 kJ
2H2(g)+O2(g)⟶2H2O(l)Δ𝐻∘rxn=−571.6 kJcalculate the value of Δ𝐻∘rxn for2F2(g)+2H2O(l)⟶4HF(g)+O2(g)
Follows • 2
Expert Answers •1

11/03/21

chemistry problem

Consider the balanced chemical equation 4 FeS + 7 O2 → 2 Fe2O3 + 4 SO2. If you have 100. g each of FeS and O2, how much Fe2O3 can you make? Which of these reactants is limiting? Which reactant is... more
Follows • 2
Expert Answers •2

11/03/21

Thermochemistry. Answer, step by step please. (show work)
1N2 (g) + 3H2 (g) = 2NH3 (g) ∆H = -91.2 kJ a. Is this exothermic or endothermic? b. Rewrite the equation with the energy as either a reactant or a product. c. What quantity of heat is released... more
Follows • 2
Expert Answers •1

11/03/21

An amount of ice at 0°C is added to an 8.25 kg tub of water at 25.0°C. If their final temperature is 18.2°C, what mass of ice was added?
Follows • 2
Expert Answers •1

11/03/21

quant chemistry
   Balance the following Redox equation in acidic solution                         ClO3- + As2S3 →Cl- + H2AsO4-+ SO42-
Follows • 2
Expert Answers •1

11/03/21

quantitative analysis chemistry
How many grams HCl should be added to a solution of 7.00g propylamine(C3H7NH2) (Ka for the conjugate acid =2.72x10-11) in 1.00L water to produce a buffer of pH 10.4?
Follows • 2
Expert Answers •1

11/03/21

Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 20.0 atm.

Calculate the work, 𝑤 , if the gas expands against a constant external pressure of 1.00 atm to a final volume of 20.0 L.Now calculate the work done if this process is carried out in two... more
Follows • 2
Expert Answers •1

11/03/21

If a system has 425 kcal of work done to it, and releases 5.00×102 kJ of heat into its surroundings, what is the change in internal energy (Δ𝐸 or Δ𝑈) of the system?
Follows • 2
Expert Answers •2

11/03/21

How much energy is required to melt 25g of ammonia at the melting point? Heat of vaporization is 327 cal/g and Heat of fusion is 84 cal/g.
How much energy is required to melt 25g of ammonia at the melting point?Heat of vaporization is 327 cal/g and Heat of fusion is 84 cal/g.
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.