An old 0. 500 l lecture bottle of triethylamine (n(ch₂ch₃)₃) was found in a lab and needed for a synthesis reaction. A pressure regulator indicated a pressure of 25. 0 psi, and the lab was at room temperature (25. 0°c). What mass of vaporized triethylamine in grams was left in the lecture bottle?.

Nathan is an ecologist. he’s studying the effect of secondary consumers on primary consumers. his current research focuses on a population of blue jays and crows. they eat caterpillars and mice. if the number of blue jays increases, what are the likely effects on other populations? 1the number of crows will increase. 2the number of mice will decrease. 3the number of mice will remain the same. 4the number of caterpillars will decrease.

Compared with the cost of tuition, fees, and books for a traditional college course, the cost of a clep exam is:

Based on calculations, students should have 10.4 grams of powder after conducting an experiment. the students get these results: 10.2 grams, 10.4 grams, 10.3 grams, 10.4 grams, and 10.5 grams. which words best describe this data? check all that apply. a- accurate b- falsified c-invalid d-precise e-redundant