A stock solution is prepared by adding albr3

Assignment Help Chemistry
Reference no: EM13689980

Problem- A stock solution is prepared by adding 20mL of 0.2M AlBr3 to enough water to make 65mL. How many moles of Br� are in 45mL of the stock solution?

Here is the problem which I am struggling on, please help me

Reference no: EM13689980

Questions Cloud

What is the ph of the solution at the half-equivalence point : Problem- The half-equivalence point of a titration occurs half way to the end point, where half of the analyte has reacted to form its conjugate and the other half still remains unreacted. If 0.360 moles of a monoprotic weak acid (Ka = 4.5 Ã- 10-5..
What is the ph of the resulting buffer : Problem- 500.0 mL of 0.140 M NaOH is added to 545 mL of 0.250 M weak acid (Ka = 7.75 Ã- 10-5). 1) What is the pH of the resulting buffer
What volume of base is needed to reach the end point : Problem- The flask shown here contains 0.761 g of acid and a few drops of phenolphthalein indicator dissolved in water. The buret contains 0.160 M NaOH. 1) What volume of base is needed to reach the end point of the titration
Calculate the change in ph when 4.00 ml of 0.100 m hcl : Problem- 1) Calculate the change in pH when 4.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
A stock solution is prepared by adding albr3 : Problem- A stock solution is prepared by adding 20mL of 0.2M AlBr3 to enough water to make 65mL. How many moles of Br� are in 45mL of the stock solution?
Gas is synthesized by combining hyrdogen and nitrogen : Problem- Ammonia gas is synthesized by combining hyrdogen and nitrogen. If you want to produce 562g of NH3, what volume of H2 gas at 56 degree Celsius and 745 mmHg is required? (r=0.08206 L(atm)/ mol(K), also assume the reaction is not an equilibr..
Define the concentrations shown are after mixing : Problem- Which of the combinations below will produce some precipitate (even if only a very small amount)? The concentrations shown are after mixing, but before reaction.
Explain what is the diluted fe3+ concentration : Problem- 4.75 mL of H2O and 2.50 mL of an aqueous 0.010 M SCN- solution were added to 11.25 mL of an aqueous 0.015 M Fe3+ solution. The total volume of the solution is 18.50 mL.
What is the ph of the resulting buffer : Problem- 500.0 mL of 0.170 M NaOH is added to 555 mL of 0.250 M weak acid (Ka = 5.86 Ã- 10-5). 1) What is the pH of the resulting buffer

Reviews

Write a Review

Chemistry Questions & Answers

  What kind of hybrid orbitals are formed by the central atom

The central atom in a molecule has three regions of high electron-pair density. What type of hybrid orbitals are formed by the central atom

  Explain what is the freezing point of ethylene

A solution of ethylene and water has a boiling point of 109.8C. What is the freezing point

  Explain hydrogen gas has a henry''s law constant

Hydrogen gas has a Henry's law constant of 7.8 x 10 -4 mol/kgxbar at 25 C when dissolving in water. If the total pressure of gas (H2 plus water vapor) is 1.00 bar over water, what is the concentration of H2 in the water in g/mL

  State what is the probability of locating an electron

What is the probability of locating an electron between x = 0 and x = 0.2 nm in its lowest energy state in a conjugated polyene molecule

  What is the freezing point of a solution made by

what is the freezing point of a solution made by dissolving 352 g of ethylene glycol c2h6o2 in 648 g of water? the

  How many ml of sulfur trioxide can form

Problem- If 7.15x10^22 molecules of oxygen react with 4.5g of sulfur dioxide, how many mL of sulfur trioxide can form at 305k and 0.985atm

  Describe the reactant and products of the chemical reaction

Describe the reactant and products of the chemical reaction. Was the reactant (potato chip) completely consumed? What evidence supports your answer?

  Prove that this would work using half-reaction equations

Tarnish (silver sulfide) may be removed from a silver spoon by placing the spoon in contact with a metallic container holding a solution of baking soda.

  The vapor pressure of pure component a and the vapor

Two volatile liquids (A and B) form an ideal mixture at 300.0K which just begins to boil at a pressure of 0.3000 atm. The vapor pressure of pure component A is 0.5000 atm and the vapor pressure of pure component B is 0.2000 atm

  What is the standard change in gibbs free energy of this

at 25 degc the equilibrium partial pressures for the following reaction were found to be pa 8.00 atm pb 5.40 atm pc

  Calculate entropy and gibbs energy

Problem- For the hydrogen fuel battery, 2 H2 + O2 = 2 H2O, the standard potential at 293 K is 1.2335 V and at 303 K the potential is .2251 V. Calculate entropy, Gibbs energy, and nthalpy for this reaction.

  The reaction for the decomposition of dinitrogen pentoxide

The reaction for the decomposition of dinitrogen pentoxide to form nitrogen dioxide and oxygen gas has the rate constant 1.7 x 10-3 s-1. This is a first order reaction.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd