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Problem- Identify ions when each salt placed in water and completely ionizes, also identify each salt solution as acidic neutral or basic.
1) LiCN,NH4Cl,KNO3,Na(c2H3O2), CaSO4,(CH3NH3)Br
Answer showing how to make each solution will get rated
Explain what volume in liters of 0.94 M KOH solution must be added to a 0.090 L solution containing 9.9 g of glutamic acid hydrochloride Glu, FW=183.59; pKa1=2.23, pKa2 =4.42, pKa3=9.95 to get to pH 9.80
calculate the concentration of a benzoic acid solution weakmonoprotic acid if the equivalence point of a titration on
Given stock solutions of glucose (1 M), asparagine (100 mM) and NaH2PO4 (50 mM), how much of each solution do you need to prepare 500 mL of a reagent that contains 0.05 M glucose, 10 mM asparagine, and 2 mM NaH2PO4?
If 26.96 mL of a standard 0.1650 M NaOH solution is required to neutralize 27.37 mL of H2SO4, what is the molarity of the acid solution
If 200g of Argon gas (Ar) expands from the initial temperature of 150 degrees celcius and in the process do 3.15 kJ of work and absorbs 1.52 kJ of heat what is the final tempurature of the gas
In the following experiment, a coffee-cup calorimeter containing 100. of is used. The initial temperature of the calorimeter is 23.0 . If 6.80 of is added to the calorimeter, what will be the final temperature of the solution in the calorimeter
A chemical is placed in a beaker containing 20g of soil and 500 ml water. at equilibrium, the chemical is found in the soil at a concentration of 100mg/kg of soil. the equilibrium concentration of this same chemical in the water is 250µg/L.
which will precipitate first BaF2 (ksp= 1.7*10^-6) or Baso4 (Ksp=1.08*10^-10)? if the Ba2+ concentration is adjusted to 0.05M, what are the molar concentrations of F1- and So4 2- remaining in the solution
A hot water bottle contains 960. g of water at 59 degree C. If the water cools to body temp (37 degree C), how many kilocalories of heat could be transferred to sore muscles
What is the silver ion concentration in a solution prepared by mixing 457 mL of 0.373 M silver nitrate with 475 mL of 0.442 M sodium phosphate?
The reaction A->B follows first-order kinetics with a half-life of 21.7 hours. If the concentration of A is 0.023 M after 48 hours, what is the initial concentration of A?
What is the area of the circuit element in ? Write your answer in scientific notation. Round your answer to significant digits.
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