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Write net ionic equations for each combination in which a precipitate formed or another reaction occurred. State the unknown anion and give the reasoning you used to arrive at this conclusion
A sample of hydrated Barium Chloride, BCl2 x H2O weighed 428.3mg before and 356.2mg after heating as BaCl2. What is the average number of water of hydration per molecules of BaCl2?(what is the X in BaCl2 X H20?
What would be the best indicator for the titration of 0.20 M CH3COOH titrated with 0.2 M NaOH? (Ka for acetic acid = 1.8 X 10-5) The pH ranges for the color change of some common acid base indicators are given below
How many atoms of iron would be needed to react completely with 36 molecules of oxygen. How many molecules of oxygen would be needed to react completely 16 atoms of iron
What is the concentration of F- in the solution when the reaction is complete?
What is the theoretical yield of aspirin if 190 kg of salicylic acid is allowed to react with 128 kg of acetic anhydride?
Define what is the pressure in a 1.00 L container that contains 0.240 mol of N2 and 0.360 mol of O2 at a temperature of 27°C
Assume an indicator works best when the equivalence point of a titration comes in the middle of the indicator range. Which indicator would be best for the following titration? 0.100 M hydrazine (Kb = 3.0 × 10-6) + 0.100 M HCl
1. A balloon holds 29.1 kg of helium. What is the volume of the balloon if the pressure is 1.23 atm and the temperature is 22 °C?2. A 1.71 mol sample of nitrogen gas occupies a volume of ______ L at STP.
What are the potential advantages of a multienzyme complex compared to individual, non-complexed enzymes carrying out the same function
(a) What neutral noble-gas atom has the same electron configuration? (b) What is the monatomic ion with a 1- charge that has this configuration?
Write the molecular equation, total ionic equation, and net ionic equation for the combination of Cu(NO3)2 and NaOH solution.
The enthalpy of vaporization of ethanol is 38.56 kJ/mol. It has a boiling point of 351.44 K. What is the difference in entropy between ethanol's liquid and gaseous states at 351.44 K? What I'm asking is what is the size of the "jump" on the Sm ver..
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