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Bill's recipe for onion soup calls for 4.0 lb of thinly slicedonions. If an onion has an average massof 115 g, how many onions does Bill need?
A container of gas at 760 mmHg and 20 degrees C is heated to 40 degrees C. What is the new pressure in mmHg?
Therefore the formula is N2O4 Dinitrogen tetraoxide. Recognizing Incorrect Names and Formulas of Explain what is wrong with the name of formula in the second.
When maleic acid is heated to about 100C it forms maleic anhydride, however fumaric acid requires a much higher temperature (250-300C) before it dehydrates
What is the proper name of the intramolecular reactions that occur in amino acids to form Zwitterions?
The half-life of radon-222 is 3.8 days. How much of a 100 g sample is left after 15.2 days?
hydrazine derivatives are commonly used in rocket fuels. combustion of n2h4 produces n2g and h2og. when 1.00 g of n2h4
A solution is prepared by mixing 50.0 mL of 0.50 M Cu(NO3)2 with 50.0 mL of 0.50 M Co(NO3)2. Sodium hydroxide is added to the mixture. Which hydroxide precipitates first and what concentration of hydroxide ions present in solution will accomplish th..
The first-order decomposition of N2O5 at 338K has a rate constant of 2.70 x 10-3 s-1. If the initial concentration of N2O5 is 2.88M, what is the concentration of N2O5 after 75.0 minutes
We wish to lower the freezing point of the water in an automobile radiator to -40 C. The total mass of water present is 12.0kg. For which one for the following compounds would we have to use the greatest mass of solute to achieve this
NH4CO2NH2(s)->2NH3(g) +CO2(g) (at equilibrium) starting with only the solid it is found at 40C the total gas pressure is 0.363 atm calculate equilibrium constant Kp
buffer contains 0.50 mol NH4+ and 0.50 mol NH3 diluted with water to 1.0 L. How many moles of NaOH are required to increase the pH of the buffer to 10.00? pKa of NH4+ = 9.25.
how many grams of ammonium nirtate must have reacted if 3.75dm3 of nitrogen gas was collected over water at 26C and 97.8 kPa
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