Questions by CarlForan91

0 votes

1 answer 72 views

How can we use liquid chromatography to determine the presence and concentration of specific components in a complex mixture, such as detecting the caffeine content in a sample of coffee beans?

asked Jan 30 in Analytical Chemistry

0 votes

1 answer 42 views

A chemistry student is asked to determine the concentration of copper ions in a 500 mL solution of copper sulfate. The student has access to a balance, a pipette, and standard solutions of sodium hydroxide and sulfuric acid. Using the mass balance calculations, what is the concentration of copper ions in the solution?

asked Jan 22 in Analytical Chemistry

0 votes

1 answer 25 views

Which group of species is defined as having moist skin without scales?

asked Jan 8 in Science

0 votes

1 answer 20 views

What is the acid that is released by the stomach that kills most pathogens that enter the stomach?

asked Jan 6 in Science

0 votes

1 answer 37 views

What happens when a sperm and an egg cell combine?

asked Jan 6 in Science

0 votes

1 answer 43 views

Colonial organisms were probably one of the first evolutionary steps towards which type of organisms?

asked Dec 30, 2024 in Science

...