The specific heat of liquid water is 4.184 j/g· ? c. calculate the energy required to heat 10.0 g of water from 26.5? c to 83.7? c. 1. 572 j 2. 837 j 3. 2.39 × 103 j 4. none of these 5. 239 j

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For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)