41. Answer this question based on both of the following spectra. MS: The molecular ion is at 150 amu. The M 1 peak is 9% as tall as the molecular ion. IR: NMR: The correct structure is . The doublet at about 8.00 ppm is , the doublet at 6.95 ppm is , the singlet at 5.80 ppm is , the quartet at 2.95 ppm is , and the triplet at 1.15 ppm is .

How did planetesmals form planets? a. they broke apart into smaller chunks.b. they collided and stuck together.c. they cooled and pulled ice together.d. they began to rotate.

In which reaction is precipitation occurring?

Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide as shown below. caco3(s) cao(s) + co2(g) the kp for this reaction is 1.16 at 800°c. a 5.00 l vessel containing 10.0 g of caco3(s) was evacuated to remove the air, sealed, and then heated to 800°c. ignoring the volume occupied by the solid, what will be the mass of the solid in the vessel once equilibrium is reached?