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In the formula for sodium phosphate (Na3PO4) how many moles of sodium are represented? How many moles of phosphorus? how many moles of oxygen?
Draw the two possible products of the reaction between benzaldehyde and ethylpropylketone
Calculate the amount of solution (g or mL) that contains each of the following amounts of solute. Express your answer to 3 significant figures and include the appropriate units.
When a mixture of 10.0 g of C2H2 and 10.0 g of O2 is ignited, the resultant combustion reacion produces CO2 and H2O. How many grams of C2H2, O2, CO2
a proton in a linear accelerator has a de broglie wavelength of 117pm. what is the speed of the
An organic mixture weighing 2.416 grams contains inert materials and benzoic acid. The benzoic acid is extracted into 100.0 mL of 0.1513M NaOH. After extraction
A 14.0-g sample of CaCl2 is dissolved in 131 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C ..
sodium hypiodite is disolved in water to make 1.25L of solution. the solution pH is 11.32. What is the Kb value of the hypoiodite ion?
Eventually, the water cools to 25.0 degrees celsius while the temperature in the room remains unchanged. Calculate deltaS(sys), deltaS(surr), and deltaS(univ) for this process.
you have a mixture of oxygen and argon in a 2.50 L container. You know that the oxygen has a mass of 3.44 grams. The total pressure of the gases is 1.86 atm, and their temperature is 22 degrees C.
The numbers indicate the relative amounts present at equilibrium, compared to 1-butene as the standard. 1-Butene: 1.0 cis-2-Butene: 7.2 Trans-2-Butene: 85 Explain this trend qualitively.
Write the net-ionic equation that represents the reaction that occurs when the C2H5NH2 solution is mixed with the HCl solution.
Lead has a face-centered cubic lattice with all atoms at the lattice points and a unit-cell edge length of 495.0pm its atomic mass is 207.2 amu what is the density of lead?
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