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a solution of aqueous ammonia was titrated with HCL using phenolphthalein as the indicator a) is phenolphthalein an appropriate indicator for this titration? why or why not? b) choose another indicator for thetitration of nh3 by hcl
what volume of liquid benzene must be vaporized to give that average concentration in a room
How can you tell the difference between a joule of energy and a calorie of energy by looking at bars
Calculate the energy in kJ/mol of a mol of photons in the gamma ray region of the electromagnetic spectrum that has a wavelength of 4.13 pm. Express answer in scientific notation.
Explain (using chemical equations) why NaOCl (bleach) is not terribly effective at killing bacteria in pools or tubs where the water has become acidic over time.
A solution contains some or all of the ions Cu^{2+}, Al^{3+}, K^+, Ca^{2+}, Ba^{2+}, Pb^{2+}, and {NH_4}^+. The following tests were performed, in order, on the solution
Determine what would the pressure be if the volume of this sample gas is decreased to 5.38 Litre also state that which law of gas is used in this process?
A 0.2254 g sample of naphthalene (C8H10, 128.16 g/mol) was burned in a bomb calorimeter with a heat capacity of 2.18 kJ/K, and the temperature increased by 4.16°C. What is the molar enthalpy of combustion for this compound
Which salt is most soluble in water? chromium (III) nitrate, silver iodide, barium phosphate, or calcium carbonate.
In an insulated container, a hot piece of iron (cp =0.4513 J/g-C) at 1490. C was added to 200. g of water (cp =4.184 J/g-C) at 20. C. The temperature of the resulting mixture became 90. C. What mass of iron was present?
Esters and amides can be most easily and conveniently prepared by nucleophilic acyl substitution reaction on
Explain why p-nitrophenol is a stronger acid than phenol itself. P-methoxyphenol and acidity
calculate the solubility (in mol/liter) of Al(OH)3 in a solution
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