Se colocan 0,400 moles de O2 ( g ) y 30,0 g de CO2 ( g ) en un recipiente rígido. La presión es de 0,352 atm y la temperatura 5,00 ºC. Calcular el volumen del recipiente. Datos: R = 0,082 dm3 . atm . mol-1 . K-1 ; Mr ( CO2 ) = 44,0

Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with ph. if the solubility does change, pick the ph at which you'd expect the highest solubility. you'll find ksp data in the aleks data tab. compounds does solubility change with ph