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There are some solutions that are given as a. CH4 ,,b. Ca(OH)2 ,c. NaOH , d. CO2 , e. CH3NH2 find out which solution is with pH > 7, but is not an Arrhenius base in the strict sense?
You are given a CaCl2 stock solution of 20M. For your test you require to make use of only 0.2M of the stock. Determine what would you use to prepare 10 ml of 0.2M CaCl2 from the 20M stock solution?
How many grams of MgCl2 would be needed to prepare 2.000 L of a solution that is 197 ppm in Mg2+ ions. Note: there is one Mg2+ ion in every MgCl2.
Introduced into a 1.70 L flask is 0.120 mol of PCl5 ; the flask is held at a temperature of 227 C until equilibrium is established. PCl5(g) PCl3(g) + Cl2(g) What is the total pressure of the gases in the flask at this point
Fully explain hemoglobin's function in the bicarabonate buffer system including how oxygen binding affinity changes in this process.
After a 5% HCl extraction of an ether solution, that initially contains dissolved carboxylic acid and amide, what component(s) would be found in the aqueous layer
A certain first-order reaction has a half life of 20.0 minutes. The time (in minutes) required for this reaction to be 87.5% complete is: A) 60 B) 65 C) 70 D) 75
Provide simple instructions for preparing 1.00 L of a solution having pH = 7.00 at 298 K. Your instructions should include the volumes of the solutions required.
Hexane has a density of 0.659g/mL to the third at 20 degrees C. How many mL are needed to have 30.0g of liquid.
A 30.5 g sample of an alloy at 91.8°C is placed into 50.5 g water at 22.1°C in an insulated coffee cup. The heat capacity of the coffee cup (without the water) is 9.2 J/K.
at 75 degrees celsius, a gas has a volume of 3.22 dm^2. What volume will it occupy at 75 k?
What is the final dilution obtained after each dilution series shown below
A gas measures 180.0 mL at 87.0°C and 800.0 mm. Find its volume at standard temperature and 800.0 mm of pressure.
The volume of a sample of ethane, C2H6, is 2.66 L at 447 torr and 30 °C. What volume will it occupy at standard temperature and pressure (STP)
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