Photosynthesis allows plants to turn light energy into chemical energy by forming glucose from carbon dioxide and water: 6co2(g) + 6h2o(l) → c6h12o6(g) + o2(g) δhrxn = 2802.8 kj the glucose is then used to form complex carbohydrates that the plant needs to survive. a 1.70 lb sweet potato is approximately 73% water by mass. if the remaining mass is made up of carbohydrates derived from glucose (mw = 180.156 g/mol), how much carbon dioxide (mw = 44.01 g/mol) was needed to grow this sweet potato? g how much light energy does it take to grow the 1.70 lb. sweet potato if the efficiency of photosynthesis is 0.86%? kj

In this reaction n2o4(g)→2no2(g) what changes in color would you expect as pressure is increased at a constant temperature

Embryos of different species look very similar, which shows that the organisms share a ancestor.

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.