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If a galvanic cell is produced using a nickel electrode and 1.0 M #Ni^(2+)# along with a silver electrode and 1.0 M #Ag^+#, calculate the concentration of #Ni^(2+)# and #Ag^+# in each compartment once the battery is dead?

How do I find the Voltage of this circuit?

Among transition metal managnese vanadium chromium and iron which is best conductor?

Who's interested in a new Socratic on a different website?

Thoughts on the recent announcement made about the future of the Socratic website? Share them here!

What will be the ph value of buffer solution having 400ml of 0.5MCH3COOH and 800ml of 0.1M CH3COONa which is 1.3% ionised in solution?

Calculate the pH at which bromocresol green indicator would be 50% in its yellow form and 50% in its blue form?

What is the standard enthalpy change for the reaction?

Tommy and Zach are starting out at the same position. Tommy runs north at 3 miles per hour and Zach starts to run east 2 hours later at the rate of 4 miles per hour. How long until Tommy and Zach are 8 miles apart?

Using Coulomb's Law to calculate the energy of a cadmium ion and a sulfide ion at their equilibrium ionpair separation distance. what do you do?

79.7g of blue vitriol reacts with KI then find the volume of I2 at STP 4CuSO4+4KI=Cu2I2+2K2SO4+I2?

Prove that a guill shoot 3 times as high when it is fired at an angle of 60 degree as when it is fired at an angle of 30 degrees but at the same horizontal range?

Solve this please ?! Thanks!

The oxidising strength of Cr2O72 is greatest in a solution of pH?

How many hydrogen atoms are present in one molecule of ammonium acetate #NH_4C_2H_3O_2#?

Nuclear Chemistry and Halflife calculations?

Titration question I just need the answer, unless I got it wrong. Can anyone help please?

Sulfuric Acid with a molarity of .001 has a pH of 2.75. You want
to dilute 1mL of this acid to a pH of 5.2. If you want to
dilute 1mL of the original solution, what would the final volume of
solution be?

Two point charges 4*10^6C and 2*10^6C are placed at the vertices A and B of a right angled triangle ABC respectively. B is the right angle, AC=2*10^2 m and BC=10^2m. Find the magnitude and direction of resultant electric intensity at C?

The concentration of #"OH"^# ions in a solution left after mixing #100ml# of #0.1M# #"MgCl"_2# and #100ml# of #0.2M# #"NaOH"# (#K_(sp)" of Mg"("OH")_2=1.2*10^12#)?

Can you walk me through simple dilutions of 1 M HCL acid? We have 1 Liter of 1 M HCL. I have 5 pieces of metal each about 4 grams. I have 5 containers. One will be all HCL and a control will be all distilled water. I need 75%, 50%, 25% and 10% solutions

You have 25 milliliters of a drink that contains 70% Caffeine. How many milliliters of a drink containing 40% Caffeine needs to be added in order to have a final drink that is 65% Caffeine?

How do you finish the reaction: #Br_2(g) + KCl(aq) >#?

For the production of hydrated salt such as Fe(NO3)2.6H2O on adding nitric acid to iron sulfides, which is preferable using concentrated or dilute acid?

Is the following equation spontaneous or non spontaneous? Al(s) + Ca2+(aq) > Al3+(aq) + Ca(s)

Chemistry Problem Quantum Mechanics. Help???

Galvanic cell potential ??

Calculate the equilibrium constant for Zn + HgO > ZnO + Hg (Eo cell = +1.35 V) assuming standard conditions?

Calculate the ΔH reaction?

How many moles of NaOH are present in 26,5 mL of 0.190 M NaOH?

What is the Keq ? ?

What is the concentration of #OH^# ions in pure water at 20 degrees Celsius?

Calculate pH and pOH of 1.0*10^7 HCl solution?
(hint;use quadratic equation)

Chemistry Question : Solving for the molarity of an acid with the base's molarity already given. Help please?

What is the solubility (in mol/L) of iron (III) in a solution of pH=8.1? The Ksp for this salt is 1.0E36.

Exactly 17.0 mL of a H2SO4 solution was required to neutralize 45.0 mL of 0.235 M NaOH. What was the concentration of the H2SO4 solution?
Given: H2SO4 (aq) + 2NaOH (aq) → 2H2O (l) + Na2SO4 (aq)

Calculate the mass of sodium acetate that must be added to 200.0 ml of a 0.20 M solution of acetic acid to prepare a buffer with a pH value of 4.75? The addition of sodium acetate does not change the overall volume of the solution. (Ka= 1.8 x 10^5)

Can somebody help me out to solve this as well,it is an iodimetric method.?

At time t =0, the current to the dc motor is reversed,
resulting in an angular displacement of the motor shaft
given by θ = (198 rad/s)t – (24 rad/s 2 )t 2 – (2 rad/s 3 )t 3 (15
marks)
a. At what time is the angular velocity of
the motor shaft zero?
b. Ca

Calculate the mass of aluminium produced when a
6.80 A current is applied to AlCl3 (l) for 1.50 hours.,?

How much of water must be added to 300 mL of 0.2 M solution of #"CH"_3"COOH"# for the degree of dissociation of the acid to be doubled? [#"K"_"a"# for acetic acid is #1.8 × 10^5#]

How is chromium(II) oxide oxidized to #Cr_2O_3#?

What will Cr2(SO4)3(aq)+(NH4)2CO3(aq) produce?

A charge of 2 μC is located 48 cm above the origin. A second charge of 8 μC is located 48 cm below the origin. What is the magnitude and direction of the net electric field 20cm to the right of the origin?

How many grams of #\text{NH}_4\text{OH}# do I need to make #400\ \text{mL}# of a #0.45\ \text{M}# solution of #\text{NH}_4\text{OH}#...?

A certain quantity of electric charge produces 5.0g of silver from an aqueous solution of silver nitrate. When the same amount of charge is passed through an aqueous solution containing the #X^n+# ions , 3.02g of X is produced.,What is the value of n?

Adding a solution of KSCN to a solution of #Fe^{3+}# salt , forms a bloodred complex.
What is that complex
#K_3[Fe(SCN)_6] \ or \ Fe[Fe(SCN)_6]# ?

In the presence of sodium fluoride, #25cm^3# of 0.4moldm3 aqueous iron(‖)sulphate requires #25cm^3# of 0.10moldm3 aqueous potassium manganate(Ⅶ)for complete reaction.What is the final oxidation state of manganese?

Phenylacetic acid (HC8H7O2) is one of the substances that accumulates in the blood of persons with phenylketonuria, an inherited disorder that can cause mental retardation and even death. A 0.033 M solution of HC8H7O2 is found to have a pH of 2.9.
?

The OH conc. In 10^7N NaOH Solution?

The scenario: The time is well into a zombie apocalypse, the internet is no longer a thing, and all the vitamin shops have been scavenged. How can one obtain Potassium Iodide? Is it possible to extract it from plants?

What is the final mass of lead electorde?

A reaction has a standard freeenergy change of 15.50 kJ mol^1 (3.705 kcal mol^1). how is the equilibrium constant calculated when the reaction is at 25 degrees celsius?

How do you solve this chemistry question?
Consider the following reaction at 298 K.

Consider three charges, #q_1=q_2=q_3=q#, at the vertices of an equilateral triangle of side #l#. What is the force on a charge #Q# (with the same sign as #q#) placed at the centroid of the triangle? Solve using parallelogram law of vectors.

If electrode potential of 0.01M Cu^2+/Cu is 0.32V then what will be its E°_RP?

#"Fe"+"O"_2+"H"_2"O"="Fe"_2"O"_3 or "Fe(OH)"_3# Explain. What is the right answer?

Hi!Could someone help me?

HOAc
Ka = 1.8 * 10–5 H2CO3 Ka1 = 4.3 * 10–7 Ka2 = 5.6 * 10–11 Which of the following 0.01 M solutions has the highest pH?

Consider the cell Cu/Cu^+2Ag^+/Ag.If the concentration of Cu^+2 and Ag^+ ions becomes ten times, the emf of the cell is?

5C2O4 + 2MnO4 + 16H → 2Mn + 10CO2 + 8H2O
If 4 mL of 0.001 Μ KMnO4 solution is used to reactcompletely with 250 mL of saturated CaC2O4 solution
according to the above reaction, what will be the Ksp of CaC2O4 under the same conditions?

The radius of a sphere is increasing at the rate of 2 m/sec. find the rate of change of the volume with respect to time when radius is 4m?

How to find horizontal distance in projectile motion?

Why cant lead (ii) chloride be prepared by action of dilute hydrochloric acid on lead(ii) carbonate?

A stone is projected from the top tower at an angle of 30 degrees to the horizontal with a velocity of 40m/s. It reaches the ground in 5 seconds. What is the height of the tower and the range of the stone using?

An airplane is heading north at an airspeed of 700 km/hr, but there is a wind blowing from the northeast at 40 km/hr.
The plane will end up flying ______(?)degrees off course.
The plane's speed relative to the ground will be _____(?)km/hr.

How do I calculate the standard potential of a chemical reaction?

A plane is flying at an altitude of 8000 m at a speed of 250 m/s. At what horizontal distance ahead of its target must a water balloon be released to strike the target on the ground (neglecting air resistance)?

What initial speed must he throw so that it goes through the hoop without striking the backboard?

An electric field of 7.00×10^5 V/m is desired between two parallel plates, each of area 45.0 cm2 and separated by 2.45 mm of air. What charge must be on each plate?

How do you find the equations for the tangent to the curve in the point [1,2]?

How to solve Motion Question?

How amount of voltage should be supplieid to holfman voltameter in order to find the composition of water by volume and by mass?

What is an example of entropy from everyday life?

In lab you will be preparing five aqeous solutions of glycerine (C3H8O3), each a different predetermined %(m/m) and each to a total mass of 30 g. How many grams of deionized water should you measure to make your 20 %(m/m) solution for lab?

Question #5cc30

Ionic equation between copper carbonate and sulphuric acid question is that whether copper carbonate dissociates into its ions or not.According to me,it does not but
in some papers I have seen that it dissociated into CO^2 3.Explain?

Will Pu4+ (0.5 M) be reduced to Pu3+ (0.0005 M) by 0.25 M ascorbic acid under 1 M acid conditions
at 25 degrees C? (5/5)
Pu4+ + e ⇌ Pu3+ E° = 1.006 V
Dehydroascorbic acid + 2H+ + 2e ⇌ ascorbic acid + H2O E° = 0.390 V

Question #b8da5

An unknown Cu solution was prepared by dissolving 3.1373 g of the sample in a 200.0 mL flask. A 25.00 mL aliquot of this solution was titrated with 0.1084 M Na2S2O4, the titration required 15.93 mL to reach the end point. Calculate the % Cu in the sample?

Question #8ff5d

The pH of 0.010 M ocresol is 6.05. Find the pKa for this weak acid.?
Cresol: C6H4(OH)(CH3)

Question #6fb9d

You are launching a 2kg potato out of a potato cannon. The cannon is 1.5 m long and is aimed 30 degrees above the horizontal. It exerts a 50 N force on the potato. What is the kinetic energy of the potato as it leaves the muzzle of the potato cannon?

Ferrous ion was dissolved and diluted to250.0mL.25.00mL aliquot of the ferrous ion solution was titrated with0.01000M KMnO4 solution, and the mean of 3 acceptable, corrected titrations volumes was13.84mL.Calculate the mass of Fe in the250.0mL solution?

Question #7cc65

An aluminium foil with a surface area of 500cm2 was anodized. Gow many coulombs of electricity were required to increase the thickness of the layer by 1*10^3 cm (density of aluminium oxide=4.0g cm3)?

A voltaic cell consists of a Zn/Zn2+ halfcell and a Ni/Ni2+ halfcell at 25 ∘C. The initial concentrations of Ni2+ and Zn2+ are 1.60 M and 0.130 M , respectively.
What is [Ni2+] and [Zn2+] when the cell potential is 0.45V?

Question #d2528

Question #5c760

Question #b160b

How could #"zinc chloride"# be prepared?

A man standing on a wharf is hauling in a rope attached to a boat, at the rate of 4 ft/sec. if his hands are 9 ft. above the point of attachment, what is the rate at which the boat is approaching the wharf when it is 12 ft away?

Question #cd6e9

KMnO4 oxidises #X^n+# to #XO^(3)#, itself changing to Mn2+ in acidic medium.
2.68x10^3 mol of X^n+ require 1.61x10^3 mol of KmnO4. The value of n is?

Sketch and determine the turning points of the curve y=1212x+12x^2?

Question #5e670

Question #9b43a

A waxed paper capacitor has two parallel plates, each of effective area #800 cm^#2. If the capacitance of the capacitor is #4425 pF#, what is the effective thickness of the paper? The relative permittivity of the paper is 2.5.

Question #b2861

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