Recent activity by ChiDunlop947

1 answer 35 views

How does changing the reaction stoichiometry affect the rate of a chemical reaction between hydrogen peroxide and potassium iodide?

answered 2 days ago in Chemical kinetics

1 answer 57 views

What is the percentage of nitrogen, carbon, and hydrogen in a sample of caffeine obtained from coffee beans? Use elemental analysis to determine the composition of the sample.

answered 4 days ago in Analytical Chemistry

1 answer 47 views

What is the expected acidity or basicity of an organic molecule containing both a carboxylic acid group and an amine group? Provide a detailed explanation for your answer.

answered 5 days ago in Chemical bonding

1 answer 61 views

How does the pH value of water bodies affected by acid rain change over time, and how does this impact the aquatic life inhabiting those water bodies?

asked 5 days ago in Environmental Chemistry

1 answer 49 views

Calculate the lattice energy of MgO if the charge on the magnesium ion is +2 and the charge on the oxide ion is -2. The ionic radius of Mg2+ is 0.072 nm and the ionic radius of O2- is 0.140 nm.

asked Jan 23 in Inorganic Chemistry

1 answer 53 views

A chemistry student needs to determine the percent by mass of magnesium (Mg) in a sample of limestone. The student has access to 5 grams of the sample and is provided with the following information: the sample is comprised of calcium carbonate (CaCO3) and magnesium carbonate (MgCO3); the atomic masses of the elements are: Ca = 40.08 g/mol, C = 12.01 g/mol, O = 16.00 g/mol, and Mg = 24.31 g/mol; and the sample contains a total of 3.06 grams of carbon (C). Calculate the percentage by mass of magnesium in the limestone sample using mass balance calculations.

asked Jan 22 in Analytical Chemistry

1 answer 26 views

According to Leader-Member Exchange Theory, how do in-group relationships differ from out-group relationships?

asked Jan 17 in Psychology

1 answer 5 views

What are some common fallacies in psychological research?

asked Jan 15 in Psychology

1 answer 23 views

What is the role of leadership in group dynamics?

asked Jan 14 in Psychology

1 answer 6 views

What is meant by 'behaviourism'?

answered Jan 13 in Psychology

1 answer 20 views

While light travels at different speeds in different kinds of matter, the speed of light is constant in what condition?

answered Jan 8 in Science

1 answer 9 views

Low levels of thyroid hormones in the blood cause the release of what by the hypothalamus and pituitary gland?

answered Dec 31, 2024 in Science

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