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In the nuclear industry, detailed records are kept of the quantity of plutonium received, transported, or used. Each shipment of plutonium pellets received is carefully analyzed to check that the purity and hence the total quantity is as the supplier claims. A particular shipment is analyzed with the following results: 99.93, 99.87, 99.91, 99.86%. The listed purity as received from the supplier is 99.95%. Is the shipment is not rejected at 95% confiedence level?
A small solid crystal is added to a clear liquid. Immeadiately after that, many other crystals begin to precipitate throughout the clear liquid. This indicates that the clear liquid was actually a solution.
59.0 ml of a solution of 1.70 m is diluted to a volume of 288 ml. determine the final concentration if a 144-ml portion
How is 18-electrone rule helpful in determining the number of metal-metal bonds in Fe3(co)12 and Co4(Co)12 ? explain with example that 18-electrone rule is not useful in distinguishing between bridging carbonyl group and terminal carbonyl group?
How many grams of hydrogen gas are formed when 399.5 mL of 8.37 M HCl is used in the following reaction: Mg(s) + 2 HCl(aq) ? MgCl2(aq) + H2(g)
A solution is prepared by disolving 0.60 g of nicotine (a nonelectrolyte) in water to make 12 ml of solution. The osmotic pressure of the solution is 7.55 atm at 25 celcius. The molecular weight of nicotine is HOW MANY g/mol
calculate the N12+ concentration of a solution made by mixing .020 mols of Ni(NO3)2 into 1.0 L .22 M NH3
When a solution of MgCl2 is mixed with a solution of AgNO3, the net ionic equation is- Mg2+(aq) + 2Cl-(aq) + 2Ag+(aq) + 2NO3-(aq) --> Mg2+(aq) + 2NO3-(aq) + 2AgCl(s)
A 40.0 mL sample of 0.150 M Ba(OH)2 is titrated with 0.400 M HNO3. Calculate the pH after the addition of the following volumes of acid, and plot the pH versus milliliters of HNO3added.
The composition and amount of each phase present at 726°C, and (e) the composition and amount of each micro constituent present at 726°C.
What effect on the calorimeter constant calculated would be observed if the calorimeter cup were made of a conducting material(such as metal)rather than plastic foam
Calculate the value of Ka for the acid, Enter it in the space provided below as a number in scientific notation with 3 significant figures, Ex: 1.82E-5
Could you please explain why two 2pz or two 2px orbitals form a sigma bond whereas two 2py orbitals form a pi bond?
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