Calculate the percentage of na3po4 in the original sample
An impure sample of Na3PO4 which is having 2.488g are dissolved in the water, and the PO43- ions are precipitated as Ca3(PO4)2, which is dried, filtered and found to weigh the 1.796 g. Calculate the percentage of Na3PO4 in the original sample?
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A study looking at breast cancer in women compared 100 cases with 100 non-cases. The researchers found that 75 cases did smoke and 25 of the non-cases did smoke. Compute the odds ratio of developing cancer.
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With a substantial stench the hydrogen sulfide gas is a poisonous gas like that of rotten eggs. It can be found in the natural gas like that used in the academic laboratories. The Hydrogen sulfide will burn in the oxygen as shown below.
An impure sample of Na3PO4 which is having 2.488g are dissolved in the water, and the PO43- ions are precipitated as Ca3(PO4)2, which is dried, filtered and found to weigh the 1.796 g. Calculate the percentage of Na3PO4 in the original sam
Assuming that the reaction SO2(g) + H2O(l)--> H2SO3(l)is quantitative, discuss how much sulfurous acid is produced when 100.0 g of sulfur dioxide are mixed with the 60.0 g of water?
Estimate the equilibrium concentration of N2? For the nitrogen fixation reaction 3H2 (g) + N2(g) 2NH3(g), Kc =6.0 × 10-2 at 500°C if 0.250 M H2 and 0.050 M NH3 are present at equilibrium.
Person averaged 52 mph on last part of trip because of traffic. Total time of trip was 5hrs and 45 minutes. Determine amount of time at each of 2 speeds.
Initially [SCl2] = 0.675 M and [C2H4] = 0.973 M, and after the reaction reaches equilibrium [S(CH2CH2Cl) 2] = 0.350. how can describe the equilibrium constant for this reaction?
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