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What size sample would be necessary to find, with 95% confidence, the true population proportion, p, to within 2.5% if you had no idea what the true proportion was?
The best design for rockets is one in which both fuel materials run out at the same time to minimize excess mass. If the total mass of both components in a decaborane/oxygen rocket must be 1.951E+6g, what mass of liquid oxygen should be used
Calculate the boiling point (in degrees C) of a solution made by dissolving 3.20 g of naphthalene {C10H8} in 81.1 g of cyclohexane. The Kbp of the solvent is 2.79 K/m and the normal boiling point is 80.7 degrees C.
how many milliliters of hydrogen would be collected at a pressure of 754 torr and 22 C in a reaction between 0.315 grams of Al and an excess of HCl
Problem- (a) Use the emf series (Appendix D) to arrange the following species in order of decreasing strength as oxidizing agents: Br2, F2, Ag+
If the density of ocean water at a depth of 10,000 m is 1.071 g/ml and if 29 g of water at that depth contains 184 mg of potassium chloride, what is the molarity of potassium chloride in the sample
If 22 mL of 5.6 Molarity was spilled, what is the minimum mass of that must be added to the spill to neutralize the acid?
Propane (C3H8) is widely used in liquid form as a fuel for barbecue grills and camp stoves. For 67.7 g of propane, determine the following.
A 0.10-mol sample of a diprotic acid, H2A, is dissolved in 250 mL of water. The Ka1 of this acid is 1.0 x 10-5 and Ka2 is 1.0 x 10-10. Calculate the concentration of A2- in this solution.
Explain is there a relationship between the presence or absence of solution color as well as the ionic radius of the metal ion
Ammonia is made industrially by reacting nitrogen and hydrogen under pressure, at high temperature, and in the presence of a catalyst. The equation is N2(g)+3H2(g)---->2NH3(g). If 4.0mol of H2 react, how many moles of NH3 will be produced.
However, if you treat formaldehyde (CH2O) with potassium cyanide in water, you will not produce the cyanohydrin. You may even produce C3H6O3 (i.e., dihydroxyacetone and glyceraldehyde). Explain this either in words or reactions.
A sample of Nitrogen gas expands in volume fro 1.6 L to 5.4 L at constant temperature. Calculate the work done (in joules) if the gas expands
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