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What is a titration?

Titrations are used to make soluble salts (remember solubility rules) from an acid and an alkali. There are no solids involved in this reaction and the solutions made are colourless so there is no way of ...

Answered by Beatrix H. • Chemistry tutor

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What is the difference between a heterogeneous catalyst and a homogeneous catalyst?

Homogeneous catalyst - catalyst is in the same phase as the reactants. Heterogeneous catalyst - catalyst is in a different phase as the reactants. What ...

Answered by Katie W. • Chemistry tutor

5646 Views

Compare the advantages and disadvantages of using bioethanol over fossil fuels.

Bioethanol is a renewable fuel produced from plants, which photosynthesise to grow, taking in carbon dioxide and producing oxygen. This means there is no net increase in carbon dioxide, which is a greenho...

Answered by Michael I. • Chemistry tutor

3013 Views

What mass of calcium carbonate would you need to react with dilute hydrochloric acid to produce 10 g calcium chloride?

Equation: CaCO₃ + 2HCl --> CaCl₂ + CO₂ + H₂O [Ca_40.1 C₁₂ O₁₆ Cl_35.5]ANSWER: 9.1 g

Answered by Sam H. • Chemistry tutor

2301 Views

How would you check for halides within a compound and differentiate between them?

Add silver nitrate to the aqueous solution. If a precipitate forms then solution contains halide ions. Chloride: white. Bromide: cream. Iodide: pale yellow. Adding dilute ammonia will dissolve the chlori...

Answered by Artem N. • Chemistry tutor

1836 Views