Molar absorptivities (ε, M-1cm-1) of compounds X and Y were measured in pure samples at two different λ and are given below:

λ, nm X Y

250 14,350 2,505

310 2, 708 6,502

A mixture if these two compounds was tested in a 1.0 cm cell. And following

absorbances (A) were obtained:

λ, nm A

250 0.910

310 0.575

Find concentrations of X and Y in the mixture.

Ahypothrticalax type of ceramic material is known to have a density of 2.10 g/cm3 and a unit cell of cubic symmetry with a cell edge length of 0.57 nm. the atomic weights of the a and x elements are 28.5and 30.0 g/mol, respectively. on the basis of this information, which of the following crystal structures is (are) possible for this material: sodium chloride, cesium chloride, or zinc blende

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?

Determine the empirical formula for succinic acid that is composed of 40.60% carbon, 5.18% hydrogen, and 54.22% oxygen.