Recent activity by FlorentinaKe

1 answer 6 views

A student wants to analyze the composition of a sample of an unknown metal alloy. They dissolve a 0.500g sample of the alloy in hydrochloric acid to form a solution which is then titrated with sodium hydroxide (NaOH) to neutralize the acid. The volume of the NaOH solution required is 16.50 mL. Assuming the acid reacts with the metal in the alloy according to the formula: M + 2HCl → MCl₂ + H₂, what is the percent composition by mass of Metal M in the alloy?

asked Jan 22 in Analytical Chemistry

1 answer 47 views

What is the solubility of Calcium Nitrate in 100 mL of water at 25 °C?

answered Jan 21 in Inorganic Chemistry

1 answer 31 views

When can classical conditioning lead to phobias?

asked Jan 17 in Psychology

1 answer 5 views

When can self-actualisation be achieved, according to Maslow?

answered Jan 17 in Psychology

1 answer 16 views

When evaluating cognitive behavioural theories, what is the role of empirical evidence?

answered Jan 15 in Psychology

1 answer 57 views

What is a sample bias, and how can it impact study findings?

asked Jan 15 in Psychology

1 answer 22 views

Where does the opponent-process theory suggest addiction comes from?

asked Jan 15 in Psychology

1 answer 58 views

Which state of matter has an intermediate level of entropy between solid and gas?

asked Jan 8 in Science

1 answer 23 views

What organ system is different in men and women?

answered Jan 7 in Science

1 answer 24 views

What includes the bones and cartilage?

asked Jan 6 in Science

1 answer 32 views

What do you call the transfer of thermal energy?

answered Jan 6 in Science

1 answer 24 views

The only invertebrates than can fly belong to what broad group, which is highly successful?

asked Jan 2 in Science

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