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Calculate the pH for the following reaction: NaOH + HCO2H ----> H20 + HCO2- + Na+ If you mix 2 grams of NaOH with 50ml of .5M HCO2H, what will the final pH be? How many grams of NaOH would it have taken to reach a pH of 11? What would the pH have been at the equivalence point?
Pure substances include: choose one below: elements only elements and compounds compounds and mixtures elements and mixtures all matter
What is the molar mass (g/mol) of unknown carbonate number in the titration of Hcl & Naoh Average titre of Naoh (1.023M) is 22.5 ml.
How much alcohol must be burned to generate enough heat to warm 279kJ from 60 degrees fahrenheit to 180 degrees fahrenheit? Express answer in grams. Show entire process
If this is a sn2 reaction, why isn't the stereochemistry inverted? Why isn't the answer B? My professor chose A as the correct answer. Thanks
compute the volume of the tank if this tank has 115 moles ofnbsp neon gas and has a pressure of 57 atm at a temperature
What is the latent heat of vaporization Tsat in kJ/mol? (Answers are 1366 kW and 28.4 kJ/mol) Please show work for good rating.
The hydrogen produced in a reaction is collected over water as well as occupies 425mL at 18 ºC and 742torr. (a) Explain the volume of the dry hydrogen gas at STP
A gaseous compound containing carbon as well as hydrogen was analyzed and found to consist of 83.65% carbon by mass. At 139C and 1.00 atm, the density of this compound is 2.55g/L. Define what is the molar mass
The total volume of hydrogen needed to fill the Hindenberg was 2.0x10^8 L at 1.00 atm and 25 C. How many kilojoules of energy were evolved when it burned?
The largest estimate for the amount of water on the moon is currently 1000parts per million (i.e 1000g water per 1000000g of salt). if the moon is made primarily of a pyroxene mineral with formula Fe2Si2O6 what is the "formula" of the hydrate with..
Ice has the unusual property of a melting point that is lowered by increasing pressure. if this is the reason we can skate on ice, would a 75-kg skater whose skates contact the ice with an area of 0.1cm^2 be able to skate at -3C
Calculate the pH and pOH of a solution of HI made by dissolving 3 x 10 ^-5 moles of HI (a strong acid) in 570 mL of water.
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