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What is the average current passing through a solution of NiSO4 if 1.25 g of Ni were deposited in 4.07 hours? i = A
The normal freezing point of water H2O is 0.00 oC and its Kf value is 1.86 oC/m. Assuming complete dissociation of the electrolyte,
Draw the Lewis Structure for a Nitrate Ion (NO3-1). Assign the formal charge for the central atom, Nitrogen. What is that formal charge
Suppose that microwave radiation has a wavelength of 11.2cm. How many protons are required to heat 245mL of Coffee from 25.0 C to 62.0C? Assume that the coffee has the same density,
Calculate thePH at the equivalence point in titrating 0.100 M solutions of each of the following with 9.0×10^ 2 M NaOH... calculate the ph for HCLO2
Write a balanced titration reaction. (b) Write two different half-reactions for the indicator electrode.
the solubility in water is 8.7 g per 100 mL at 20 degrees C and 34.2 g per 100 mL at 100 degrees C. Write the equation for the solubility equilibrium, including heat as a reactant or product. What is the sign of DeltaH of the solution
Why would a mixture of salts be more difficult to identify than a single salt? For example, copper sulfate, barium nitrate and nickel bromide versus only nickel bromide.
Calculate ?G at 25 ºC for a reaction in which Ca2+(aq) combines with CO32-(aq) to form a precipitate of CaCO3(s) if the concentrations of Ca2+(aq) and CO32-(aq) are 0.023 M and 0.13 M, respectively. (?Gº = -47.94 kJ)
When the nuetron to proton ratio in a raditoactive isotope is higher than that required for stability, it main gain greater stability by emitting
a) For a weak acid or base the degree of ionization increases with dilution. Explain. b) consider the solutions .01 M HNO3 / .10 M HCL / .01 MHNO2. which solution has the highest ph
0.60 g of hydrogen chloride HCl is dissolved in water to make 7.5 L of solution. What is the pH of the resulting hydrochloric acid solution.
A fellow student is having trouble understanding polar covalent bonds, non-polar covalent bonds, and ionic bonds. Describe how you would help your the fellow student
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