2) Reacting 1.52 mol of SiO2 with excess carbon yields 43.7 g of SiC according to the reaction: SiO2 + 3C SiC + 2CO. a. What is the theoretical yield of SiC (how many grams of SiC can be made)? b. What is the percentage yield? c. What is the percentage error?

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

What is a metal replacement reaction

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.