2 C3H6 + 2 NH3 + 3 O2 = 2 C3H3N + 6 H2O If 15.0g of C3H6, 10.0g O2, & 5.00g of NH3 are reacted, what mass of C3H3N can be produced assuming 100% yield?

22. a flask containing 450 ml of 0.50 m h2so4 was accidentally knocked to the floor. how many grams of nahco, do you need to put on the spill to neutralize the acid according to the following equation: h2so4(aq)+2 nahcos(aq) na,so(aq) +2 h20()+2 co2(g) d) 38 g a) 2.3 g b) 9.5 g c) 19 g

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.