Astudent using this technique finds that when putting a hot piece of metal into a calorimeter which contains 35.070g of water, the water temperature increases from 22.4 c to 24.7 c. how much heat (q) was absorbed by the water (s. h of water = 4.184 j/g k)

If 34.2 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 299 kelvin and 1.21 atmospheres? 2 li (s) + 2 h2o (l) yields 2 lioh (aq) + h2 (g)

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

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