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Place the following elements in order of decreasing atomic size: silicon, nitrogen, helium, potassium, magnesium, and carbon.
How many milliliters of 4.21 M NaOH are needed to completely neutralize 76.9 mL of 0.340 M H3PO4? The reaction is 3NaOH(aq) + H3PO4(aq) → Na3PO4(aq) + 3H2O(l)
How many grams of solute are needed to make each of the following solutions? 417 mL of 0.225 M potassium sulfate
What mass of acrylonitrile can be prepared from 400.0 kg of propene, 100.0 kg of ammonia, and 650.0 kg of oxygen
2 mL of 1,2-dichlorobenzene was added to a 250 mL volumetric flask, then it was diluted to 250 mL with benzene. A capacitance cell was submerged into this solution, then the cell was attached to a frequency counter. The frequency response was meas..
Determine the mass of Cr 3 + in the original solution if The total mass of the precipitate = 49.6 .
If 0.80g of gas occupies 295 mL at 25 degrees celsius and 680 mm Hg of pressure, what is the molar mass of the gas?
Started with the following chemical Na2O3+H3PO4= NAPO4+H2o +Cr2, find the limiting reagent if you started with 450ml of 2.65 Na2O3 and 88 grams of H3PO4, what is the maximum amount of grams you can make of NaPO4? how many grams of other starting m..
what hydrogen ion concentration should be required to dissolve 0.10m mgf2 if the ksp for magnesium fluoride is 6.8x10-9
It's not until death that the percentage of carbon-14 will begin to diminish from decay. Because radioactive decay is a first-order process, the integrated rate law for a first-order reaction can be rewritten asfraction remaining
If densities were addititive, what should be the density of a 50-50 mixture of propylene glycol and distilled water at 20 degrees Celsius? Note: d^20 = 1.0361 g/mL propylene glycol and d^20 = 0.99821 g/mL distilled water.
What is the limiting reagent? What is the theoretical yield of acetanilide? What is the percent yield if 3.3g of acetanilide is obtained?
find the density of a rock is found to have a mass of 33.8 g. when placed in a graduated cylinder containing 40.0 ml of
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