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The crystal structure of an element X can be described as follows: X atoms form a face-centred cubic lattice with an edge length of 356.7 pm. In addition, there are X atoms occupying every other tetrahedral site in the face-centred cubic lattice. The density of the solid is found to be 3.52 g/cm3. What is the molar mass of the element, in g/mol?
Calculate the downward pressure in pascals due to gravity exerted by the bottom face of a 3.25kg cube of iron that is 7.50 cm
Determine the number of signals expected in the carbon 13 spectra for each of the following compounds. propyl benzene and 1,2,4 trimethyl benzene
A green leaf has surface area 2.05 cm^2. If solar radiation is 1190 W/(m^2) , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation.
In the synthesis of t-butyl chloride from t-butyl alcohol, what is the purpose of using concentrated HCl instead of dilute HCl
What is the major product produced from the reaction of 2-methyl-2-butene with 30% HBr?
A copper cube measuring 1.60 cm on edge and an aluminum cube measuring 1.61 cm on edge are both heated to 55.3 C and submerged in 100.0 mL of water at 22.1 C.
determine the evaporator temperature at which a single-stage R22 plant will cease to produce any refrigerating effect in delhi where the condenser temperature is 42 degree C
Under what circumstance is the rate law related directly to the balanced equation for a reaction
How much ice(in grams) would have to melt to lower the temperature 352ml of water from 25degrees celcus to 5 degrees celcus? ( assume the density of water is 1.0g/ml)
In the gravimetric determination of Zn^2+, 2.2024 g sample was dissolved and made up to volume in a 100.0 mL flask. A 10.0 mL aliquot were precipitated by adding a soluble pyrophosphate salt and heating the precipitate to a solid Zn2P2O7 (304.728 ..
If it takes 50.0 mL of 0.0250 M K2Cr2O7 to titrate 30.0 mL of a solution containing Fe2+, what is the molar concentration of Fe2+?
Draw the amine from the following: A Hofmann degradation of a primary amine forms an alkene that gives butanal
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