Questions by RefugiaGoffa

0 votes

1 answer 5 views

How can capillary electrophoresis be used to determine the composition of a sample containing multiple ions and molecules? What are the factors that need to be considered while selecting the running buffer and other parameters for the analysis? How does the choice of detector affect the accuracy and sensitivity of the analysis? Moreover, how can the obtained information be used to identify and quantify the various species present in the sample?

asked Jan 29 in Analytical Chemistry

0 votes

1 answer 55 views

Calculate the heat of mixing when 25 grams of ethanol is added to 75 grams of water at 25°C. The heat of mixing of ethanol in water is -4.4 kJ/mol. Assume the densities of ethanol and water to be 0.789 g/mL and 1 g/mL, respectively, and the specific heat of the mixture to be 4.184 J/g°C.

asked Jan 23 in ThermoChemistry

0 votes

1 answer 17 views

What are null and alternative hypotheses?

asked Jan 16 in Psychology

0 votes

1 answer 5 views

According to the cognitive-behavioural theory, what is the relationship between our thoughts, feelings, and behaviours?

asked Jan 15 in Psychology

0 votes

1 answer 26 views

What is the 'Authoritarian Personality Theory'?

asked Jan 15 in Psychology

0 votes

1 answer 19 views

What is a double-blind study?

asked Jan 14 in Psychology

0 votes

1 answer 20 views

What are the implications of learned helplessness for personal growth?

asked Jan 14 in Psychology

0 votes

1 answer 8 views

What is the 'Social Shaping of Technology'?

asked Jan 14 in Psychology

0 votes

1 answer 21 views

What is the impact of divorce on adolescent development?

asked Jan 13 in Psychology

0 votes

1 answer 32 views

Who is known for their psychoanalytic theory?

asked Jan 10 in Psychology

0 votes

1 answer 27 views

Water droplets form when the air reaches 100-percent what?

asked Jan 2 in Science

0 votes

1 answer 28 views

The hardest natural substance, diamond is a form of what element?

asked Jan 2 in Science

0 votes

1 answer 50 views

The distance that light can travel in a year is known as what?

asked Dec 31, 2024 in Science

0 votes

1 answer 30 views

Most radioactive emissions that people are exposed to are on the order of a few dozen what?

asked Dec 31, 2024 in Science

0 votes

1 answer 21 views

What always has the same elements in the same ratio?

asked Dec 28, 2024 in Science

0 votes

1 answer 8 views

An electrical signal along a nerve cell triggers the secretion of what?

asked Dec 27, 2024 in Science

...