Amixture of bases can sometimes be the active ingredient in antacid tablets. if 0.4889 g of a mixture of al(oh)3 and mg(oh)2 is neutralized with 17.21 ml of 1.000 m hno3, what is the mass % of al(oh)3 in the mixture?

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.

Draw any one of the skeletal structures of a 2° alkyl bromide having the molecular formula of c6h13br and two stereogenic centers. indicate chirality by using wedge and hashed wedge notation. lone pairs do not need to be shown.