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Depending upon the conditions, potassium permanganate may form Mn(s), Mn^2+, or Mn^3+. Determine the number of electrons transferred and the equivalent mass of potassium permanganate for each condition.
a voltaic cell consists of mnmn2 and cdcd2 half-cells with the following initial concentrations mn2 0.090 m cd2 0.060
You are given trhat 0.01 m aqueous solutions of each of the given solution as, C6H12O6, K3PO4, CaCl2 , NaI you jutst need to place the given solutions in order of increasing change in the freezing point of the solution.
The density of a sodium sulfate solution is 1.07 g/cm3. The solution is 8.00% sodium sulfate by mass. How many cm3 of the solution are needed to supply 4.28 g of sodium sulfate?
when you heated the hydrated compound this process starts slowly at first find out the reason behind this?compute k for
If the Ka of a monoprotic weak acid is 1.4 × 10-6, what is the pH of a 0.33 M solution of this acid
A 0.1276g sample of a monoprotic acid (molar mass = 1.10 x 10^2) was dissolved in 25.0 ml of water and titrated with 0.0633 M NaOH. After 10.0 ml of base had been added
Proper equilibrium expression for the following reaction. 6CO2(g) + 6H2O(l) -> C6H12O6(s) + 6O2(g)
to obtain the same antifreeze protection requires 76g of propylene glycol to replace each 62g of ethylene glycol.
In an acid base titration a 25mL portion of a solution containing sulfuric acid (H2SO4) was titrated with a 0.200M NaOH(aq). write the chemical equation for this particular titration
Find the pH and volume (mL) of 0.447 M HNO3 needed to reach the equivalence point(s) in titrations of each of the following
What is the (a) molality, (b) freezing point, (c) boiling point of a solution containing 100.0 g of ethylene glycol (C6H6O2) in 150.0 g of water
If a mixture containing 1.0 moles of A, 4.0 moles of B and 6.0 moles of C is allowed to react according to the equation: 2A + 2B + 6C ? 4D + 3E
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