Questions by Johnson21A65

0 votes

1 answer 57 views

What is the composition of a sample solution of caffeine and aspirin using high-performance liquid chromatography (HPLC) with a C18 column and a mobile phase of acetonitrile and water containing 0.1% trifluoroacetic acid at a flow rate of 1 mL/min?

asked 6 days ago in Analytical Chemistry

0 votes

1 answer 68 views

Identify the major product(s) of the following nucleophilic substitution reaction:CH3Br + NH2OH → ?

asked Jan 21 in Organic Chemistry

0 votes

1 answer 50 views

What is the pH of a 0.1 M solution of acetic acid (CH3COOH) and its corresponding acetate ion (CH3COO-) when the dissociation constant (Ka) of acetic acid is 1.8 x 10^-5 at 25°C?

asked Jan 21 in Organic Chemistry

0 votes

1 answer 28 views

Who proposed the multimodal approach?

asked Jan 15 in Psychology

0 votes

1 answer 7 views

According to James Marcia, what is the identity status where adolescents have committed to a set of beliefs and values?

asked Jan 15 in Psychology

0 votes

1 answer 26 views

Who is Carl Rogers and what was his contribution to psychology?

asked Jan 13 in Psychology

0 votes

1 answer 21 views

Which theory states that the characteristics of living things are controlled by genes?

asked Jan 8 in Science

0 votes

1 answer 46 views

What are needed to oxidize the noble gases to form compounds in positive oxidation states?

asked Jan 3 in Science

0 votes

1 answer 22 views

The stoichiometric coefficients indicate the relative amounts of what?

asked Jan 2 in Science

...