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What mass of MgNH4PO4 precipitated when 200.0ml of a 1.000% (w/v) solution of MgCl2 were treated with 40.0ml of 0.1753 Na2PO4 and an excess reagent of NH4+?
The activation energy for a particular reaction is Ea = 14.20 kJ. What percentage of the molecules are at or above the activation energy at 500.0 K
Reductive amination can be used to form primary, secondary, and tertiary amines. Secondary amines are more basic than primary amines due to extra electron donation by the alkyl groups.
caclculate the number of grams of Fe formed when 0.300kg of Fe2O3 reacts.
Which of the following ideal aqueous solutions would be predicted to have the highest boiling point
a positive ion ESI mass spectrum of a protein showed a peak at m/z = 1001 resulting from the adition of 10 protons. what is the actual mass of the uncharged protein?
Hydroxyl radical (OH) is produced from the photolysis of H2O or through reaction with excited oxygen, H2O + hν --> H + OH or O* + H2O---> 2OH
Sodium lauryl sulfate can be prepared by replacing chlorosulfonic acid with another reagent. What could be used? Show the equations.
According to the Bohr model, the allowed energies of the hydrogen atom are given by the equation: E = (-21.7 x 10-19)/n2 J. Which of the following energy levels is not possible in the Bohr hydrogen atom
Given that the solubility of a compound X is 0.60 g/100 mL in ether and 0.12 g/100 mL in water. (a) What is the amount of X in mg that is extracted from a solution containing 60 mg of X in 60 mL of water
what effect does the presence of sodium sulfite group on methy orange have on the solubility of methyl orange in water. If this group were absent, would you expect the solubility of the resulting molecule to be more or less soluble in hexane than ..
A reaction mixture initially containing 0.520 M H2S and 0.520 M SO2 was found to contain 1.0 x 10 -3. A second reaction mixture at the same temperature initially contains 0.245 and 0.335. calculate the equilibrium concentration of H2O in the secon..
Write the possible polymeric structure formed between sebacoyl chloride and butane-1,4-diamine, what is the appropriate name for this polymer?
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