Evaluate the [cr+3] in equilibrium with cr(oh)4-(aq)

Assignment Help Chemistry
Reference no: EM13523838

Calculate the [Cr+3] in equilibrium with Cr(OH)4-(aq) when 0.010 mol of Cr(NO3)3 is dissolved in a liter of solution buffered at a pH of 7.3. Kf for Cr(OH)4-(aq) is 8.0 x 1029.

2.0 x 10-3M
7.9 x 10-6M
3.1 x 10-8M
1.6 x 1023M
2.0 x 10-7M

Reference no: EM13523838

Questions Cloud

Find the magnitude of the net force acting on soccer ball : At an instant when a soccer ball is in contact with the foot of the player kicking it, the horizontal or x component of the ball's acceleration is 810 m/s2, find the magnitude of the net force acting on the soccer ball
Explain aqueous mgcl2 are electrolyzed with inert electrodes : When a sample of molten MgCl2 and a sample of aqueous MgCl2 are electrolyzed with inert electrodes different products are obtained. Determine the product of the electrolysis of each sample and explain why there is a difference.
Determine the net electric flux through the surface : A point charge of 6.1 µC is at the center of a cubical Gaussian surface 60 cm on an edge. What is the net electric flux through the surface
What is the expected annual number of lives saved : What is the conditional expected survival benefit for admit-ted patients - produce a formula for the total ICU admission rate in patients per day that. applies for all potential values of It between 0.03 and 0.44.
Evaluate the [cr+3] in equilibrium with cr(oh)4-(aq) : Calculate the [Cr+3] in equilibrium with Cr(OH)4-(aq) when 0.010 mol of Cr(NO3)3 is dissolved in a liter of solution buffered at a pH of 7.3. Kf for Cr(OH)4-(aq) is 8.0 x 1029.
What is his total displacment during the entire trip : A physics instructor drives down to St. Louis to see his mom. On the way there, he travels the first half of the time at 60.0 km/hr and the second half the time at 95.0 km/hr. What is his total displacment during the entire trip
Explain what is the ph of the buffer ka for acetic acid : A student is asked to prepare a 1 L buffer by adding 0.11 M sodium acetate to 0.09 M acetic acid solution. What is the pH of the buffer? Ka for acetic acid is 1.8 x10 -5
Find what is your walking speed : During a heavy rain, the drops are falling at a constant velocity and at an angle of 9.5° west of the vertical. What is your walking speed if the speed of the drops relative to the ground is 4.6 m/s
Determine how long does the task take : An athlete needs to lose weight and decides to do it by "pumping iron." If the weight is lifted once every 1.90 s, how long does the task take (in hours)

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the weight of potassium chlorate required to

calculate the weight of potassium chlorate required to prepare 380ml of wet oxygen collected over water at 20degrees

  Explain atomic orbitals of carbon relative to methane

Atomic orbitals of carbon relative to methane in a cubic frame of reference.

  Define what is the hydrogen ion concentration of a solution

What is the hydrogen ion concentration of a solution when 2.334ml of acetic acid (60.05 g/mole) and 2.082 grams of sodium acetate (82.04 g/mole) are added to 500ml of water?

  What is the molarity of an naoh solution

what is the molarity of an NaOH solution if 25 mL of this solution reacts exactly with 22.3 mL of .253 molar sulfuric acid?

  Evaluate the q for the reaction

that the density of all solutions is 1.00 g/mL, and the volumes are additive. calculate the q for the reaction and calculate q for the neutralization of one mole of NaOH

  Determine the mean and confidence interval

Determine the mean and 90% confidence interval for the average fluoride concentration in this sample.

  Estimate the mass of water that must evaporate from the

evaporating sweat cools the body because evaporation is endothermic and absorbs 2.44 per gram of water evaporated.

  Compute the volume the gas will occupy

Calculate the volume the gas will occupy if the pressure is increased to 1.87 while the temperature is held constant.

  Determine the equilibrium concentration of pb2+

A pipette is used to add 32 mL of 0.2 M Pb(NO3)2 to a 261.0 mL solution of 0.3 M NaF. Determine the equilibrium concentration of Pb2+(aq) in the final solution. Ksp(PbF2)=3.6E-8.

  Explain the ability of an electron to cross through a node

How can we explain the ability of an electron to cross through a node, such as the nucleus, to occupy the region within an entire orbital?

  Explain the standard cell potential e0cell

Determine the cell reaction, the standard cell potential (E0cell) and the half-cell that acts as the cathode for the voltaic cells composed of the following half-cells.

  Explain the anode is electrode where oxidation occurs

In an electrochemical cell, which of the following statements is FALSE? A. The cathode is the electrode where reduction occurs. B. The anode is electrode where oxidation occurs. C. A spontaneous electrochemical cell is called a galvanic cell. D. A..

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