You have 1.145 g of NaCl. You need more, so you weigh out an additional 1.20 g of Naci. How much NaCl do you have?
A.) 2.345 g
B.) 2.35 g
C.) 2.34 g
D.) 2.3 g
E.) 2 g

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

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.)

Which statement best describes isomers? a. isomers are alcohols that have the same functional group. b. isomers have at least one carbon-carbon double bond. c. isomers have the same molecular formula but different structural properties.