3. Calculate and record the moles of benzoic acid in the solvent. Remember to convert your mass of lauric acid to kilograms (1,000 grams per kilogram). moles of benzoic acid = m × kg of lauric acid Mass of Benzoic Acid- .4g Mass of Lauric Acid- 3g PLEASE HELP

What is the ph of a solution with a concentration of 5.2 × 10–8 m h3o+?

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.

An atom's configuration based on its number of electrons ends at 3p4. another atom has seven more electrons. starting at 3p, what is the remaining configuration? 3p63d34s2 3p43d54s2 3p64s23d3 3p44s23d