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What is the theoretical yield of MgO if0.5870grams of Mg react in excess O2gas?
Using the Henderson-Hasselbach equation, calculate the volume of 0.10 M Na2HPO4 and 0.10 M NaH2PO4 that would be required to make 100.0 mL of a 0.10 M (total phosphate concentration i.e. HPO4 + H2PO4) buffer with a pH of 6.91.
An element crystallizes in a body-centered cubic lattice. The edge of the unit cell is 3.06 , and the density of the crystal is 7.01. Calculate the molar mass (in g/mol) of the element.
The air pollutant NO is produced in automobile engines because of the high-temperature reaction below. If the initial concentrations of N2 and O2 at 1000 K are both 1 M
How many liters of softened water, containing a sodium concentration of 4.0×10-2% sodium by mass, have to be consumed to exceed the FDA recommendation
determine the mass of lithium hydroxide produced when 0.38 g of lithium nitride reacts with water to make ammonia nh3
What volume of 0.150 mol /L Ba(OH)2 is needed to neutralise 476 mL of 0.178 mol/L HCl?
Explain the reaction between ethyl iodide and hydroxide ion in ethanol (C2H5OH) solution, given below, has an activation energy of 86.8 kJ/mol as well as a frequency factor of 2.10 1011 M-1s-1.
What is the hybridization of phosphorus in the phosphonium ion (PH4+)? If someone can tell me how to figure this out I would really appreciate it. Any shortcuts or hints on how to solve it?
Given the following data table, use the method of initial rates to determinet the rate law for the following reaction: A + B = C + D + E run: ro(M/s): [A]o: [B]o: [C]o: [D]o: [E]o:
An unknown Chromium solution was mixed with aliquots of a standard solution of Chromium for atomic absorption spectroscopy. The standard solution contained 1000 ppm of Chromium (this is [s]i)
Before the reaction, the volume of hte system was 6.60L. After the reaction, the volume of the system was 2.00L. Calculate the total internal energy change, Delta U, in kilojoules
How many joules of energy are necessary to heat the steam from 100.0C to 114.0C if the specific heat of steam is 2.02 J/ g C
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