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A solution of ammonia and water contains 3.30×1025water molecules and 6.90×1024 ammonia molecules.How many total hydrogen atoms are in this solution?
A glass bulb of volume 0.136 L contains 0.7031 g of a gas at 759 Torr and 99.5 degrees C. What is the molar mass of the gas
Explain the effect of the following experimental errors on your results: a) You add hexane to the reaction flask instead of 1-hexene b) You use 3% hydrogen peroxide instead of 30% c) You forget to add potassium carbonate in the seperation step.
Calculate the molarity and the molality of an NH3 solution made up of 36.5 g of NH3 in 70.0 g of water. The density of the solution is 0.982 g/mL.
Potassium chlorate can be decomposed to o2 and potassium chloride. Calculate the mass of potassium chlorate that must react to procedure 187.1 ml of dry 02 at STP.
Calcutate the number of grams of drug to be wieghted for this solution
separate Pyridine Pka of conjugate acid:5.30 and phenol pka :10 using reverse phase HPLC, you and your lab partner are both eligible for the same promotion
Calculate the pH of a solution resulting from the titration of 50mL of 0.078M HCl with 25 mL of 0.083M NaOH. Give your answer to two decimal places.
A reaction has an activation energy of 32 kj/mol. If the temperature of the reaction doubles from 45 to 90 degrees by what factor will the ratio of the rate constants, k2/k1,change
Need two of the methods for polycyclic aromatic hydrocarbons degradation. One of the method is Photocatalysis but how it works
The reaction X(s) ? X(g) is known at 25oC to have standard enthalpy, free energy, and entropy changes of 146.8 kJ, kJ, and 175.4 J/K. At what temperature (oC) does X(s) sublime?
find the gram formula mass of each compound.a. li2sb. fecl3c.
Calculate the pH after 4.00g of NaOH is added to 1.00L of the above buffered solution. Assume that there is no change in the volume of the solution upon addition of NaOH.
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