La capsaicina es el componente activo de los pimientos picantes responsables de la irritación y la sensación de ardor en la boca. Su fórmula molecular es C18H27NO3 y su masa molar es 305.41 g/mol. ¿Cuántos mmoles de de capsaicina hay en 83 mg de esta sustancia?

This element exists in adundance in the sun.explain how you would go about capturing sunlight.would this captured sunlight contain any of the element?

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.

8. what happens to matter during a chemical reaction