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Calculate the volume (in mL) of 0.665 M HI needed to react completely with 6.75 g of MgCO3 in a gas-forming reaction?
The density of water = 1.000 g/mL. The liquid's final volume is not changed by adding the solid. The calorimeter loses only a negligible quantity of heat.
The balloon ascends to an altitude of 20 , where the pressure is 76.0 and the temperature is 50. . What is the new volume, , of the balloon in liters, assuming it doesn't break or leak
A chloride solution, prepared by dissolving 0.2789 g of an unknown sample in 250.00mL as well as taking a 10-mL aliquot of the resulting solution, requires 11.21mL of the same silver nitrate solution to reach the end point. Explain what percentage..
Which of the following acids (listed with pKa values) and their conjugate base would form a buffer with a pH of 8.10
The bonding in benzene differs from that of other unsaturated hydrocarbons in that each carbon atom participates in: a. one single bond and on delocalized bond
1. which hasthe higher boiling point hf or hcl? why?2. potassiummetal crystallizes in a body-centered cubic structure
calculate the molecular mass of the nonionic solutes 8.02 g of solute in 861 g of water lower the freezing point to
Explain what mass of NaCH3COO should be added to 1.0 L of a 0.920 M CH3COOH solution to produce a solution with a pH of 4.39 at 25 degrees Celsius given that the Kb of CH3COO- is 5.6x10^10 and the molar mass of NaCH3COO is 82.0 g/mol
A solution is made by dissolving 0.75 g of salt in 100.00 g of water. Calculate the % m/m for the solution. *0.74% m/m *0.75% m/m *7.5% m/m *7.4% m/m
Determine the energy change associated with these changes in state: a. 138g of steam condenses,b. 261mg of solid mercury melts,c. 8.36g of rubbing alcohol freezes d. 52g of liquid methane boils
what is the boiling point of radiator fluid that is 50 antifreeze by mass?ethylene glycol the primary ingredient in
Question- 1) What volume ratio of 0.110 M HCOONa to 0.125 M HCOOH would be needed to prepare a buffer with a pH of 4.00. 2) How many mL of each would be needed to prepare 50 mL of this buffer.
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