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Calculate the [H3O+] of the following polyprotic acid solution: 0.340M H3PO4 . and calculate the ph 2) Calculate the [H3O+] and pH of the following polyprotic acid solution: 0.360M H2C2O4 and calculate the pH
Gastric juice is made up of substances secreted from parietal cells, chief cells, and mucous-secretig cells. The cells secrete HCl, proteolytic enzyme zymogens, mucin, and intrinsic factor. The pH of gastric juice is acidic, between 1-3.
A 3.00-l flask is filled with gaseous ammonia, . The gas pressure measured at 18.0 C is 1.55 atm . Assuming ideal gas behavior, how many grams of ammonia are in the flask?
The Henry's law constant for O2 in water at 25 Celsius is given in Table 14.2. Which of the following is a reasonable constant when the temperature is 50 Celsius? Explain the reason for your choice.
A perfect gas has a constant volume molar heat capacity of CV,m = 1.5× R, and a constant pressure molar heat capacity of Cp,m = 2.5× R. For the process of heating 4.50 mol of this gas with a 12 W heater for 400 seconds, calculate
Consider the halide ions as nucleophiles. Briefly explain why F-, the strongest base among the halide ions, is the best nucleophile in polar aprotic solvents while iodide the weakest base is the best in protic solvents.
Mg +2HCl-> MgCl2 + H2 what volume of Hydrogen at STP is produced from the reaction of 50.0g and the equivalent of 75 g of HCl? Also, How much of the excess reagent is left over?
Calculate the volumetric size of a water molecule in vapor, assuming 1 mole of the vapor occupies 22.4 L, as if the vapor were an ideal gas
Given that Iron(III) oxide or ferric oxide (molar mass = 159.7 g/mol) reacts with Carbon monoxide (molar mass = 28.0 g/mol).
If 5.20mL of 0.1000 M NaOH solution is needed to just neutralize excess acid after 20.00 mL of 0.1000 M HCl was added to 1.00 g of an antacid, how many moles of acid can the antacid counteract per gram?
Assuming the structures above gave molecular ion abundances of 12, 70, and 23(dexchlorpheniramine, 9-aminoacridine and pilocarpine, respectively), what abundances would you expect for the M+1 and the M+2 peaks for each structure?
Because the potential of pH electrodes can vary, it is necessary to CALIBRATE a pH electrode before use. For many uses, a two-point calibration procedure is appropriate.
Putting together titration lab to determine concentrations of calcium phosphate, citric & ascorbic acid
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