The density of a gaseous compound of phosphorous is 0.943 g/L at 438 K when its pressure is 710 Torr. What is the molar mass of the compound

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2