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When burned in oxygen, 10.0 g of phosphorus generated enough heat to raise the temperature of 2950 g of water from 18.0oC to 38.0oC. The heat of formation of P4O10 from P4(s) and O2(g) is:
suppose the condenser operates as a total condenser at 40 degrees, the production rate of the overhead product is 75kmol/h. The ratio of reflux and overhead product is 1.5:1.
Historically, the solid residue that is left after the Dichloromethane -or methylene chloride (CH2Cl2 )solution is evaporated has a lower melting point that its literature value, due to impurities.
How many grams of diphenyl (C 12H10) must be dissolved in 655 g of benzene to lower the freezing point by 3 .20ºC.
Chemistry - Other explained in this solution, If world energy consumption continues to rise at the present rate of 2.4%, how long will it take to double (expressed in years)?
3H2 (g) + N2 (g) 2NH3(g), Kc = 6.0 × 10-2 at 500°C for this nitrogen fixation reaction. What is the equilibrium concentration of N2 If 0.250 M H2 and 0.050 M NH3 are present at equilibrium?
A 97 gram solution of silver nitrate contains 14 grams of AgNO3. What is the percent by mass of silver nitrate in this solution?
What is the molarity of a solution in which 2.69 g of C12H22O11 (MM=342.29 g/m) is dissolved in enough water to make 225 mL of solution?
volumetric flask and this solution becomes quite warm, but after it is permitted to return to room temperature, H 2 O is combined to total 500 mili litres of solution. Compute the pH of the final solution. ?
Compute the mass of Trisodium phosphate required to remove all Ca^2+ ions from 2.50 Litres of the H 2 O sample?
Explain the Reaction, If you treat an aldehyde wiith HCN you produce a cyanohydrin. For example
2.00 moles of a gas occupies 62.2 L at a par- ticular temperature and pressure. Its density is 0.900 g/L. What is the molar mass?
Calculate the molar solubility of Mg(OII)_2 in a solution with a pH of 12.8 (K_op of Mg(OH)^2 is 1.2 * 10^-11
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