Question detail
A student dissolves 10 g of sodium hydroxide (NaOH) in 100 cm³ of water. Calculate the concentration of the sodium hydroxide solution in g/dm³.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Exothermic and endothermic reactions
Question
A student dissolves 10 g of sodium hydroxide (NaOH) in 100 cm³ of water. Calculate the concentration of the sodium hydroxide solution in g/dm³.
Answer
100 g/dm³
Explanation
The calculation tests the student's ability to apply the concentration formula to find the concentration of a solution after dissolving a solid in a specific volume of water.
Common mistake
Measuring Temperature Changes
Students often forget to account for the initial temperature of the water before adding the reactants, leading to inaccurate measurements of temperature change.
Always record the initial temperature of the water before starting the reaction to ensure accurate calculations of temperature change.
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