Zadanie 2c
Explain how the calibration curve is then used to determine the concentration of KMnO4 in a reaction mixture of unknown concentration.
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Explain how the calibration curve is then used to determine the concentration of KMnO4 in a reaction mixture of unknown concentration.
The kinetic molecular theory describes matter as particles in constant motion. State and explain two physical properties of a gas using this model.
Which diagram shows the electron configuration of an oxygen atom in its ground state? A. Diagram A B. Diagram B C. Diagram C D. Diagram D
Draw a line of best fit on the graph, extrapolating it beyond the range of the data.
State, in mathematical terms, how the absorbance of these solutions depends on their concentration.
Deduce the equation that relates absorbance to concentration for these solutions, including the numerical value of the constant.
Estimate the absorbance of a 0.400 mol dm−3 solution of nickel(II) sulfate.
Write an equation for the reaction, including state symbols.
Deduce which reactant is limiting. Use sections 1, 4 and 7 of the data booklet.
Calculate the volume, in dm3 at STP, of the gas produced. Use section 2 of the data booklet.