Question detail
If 10 g of sodium chloride (NaCl) is dissolved in 0.5 dm3 of solution, calculate the concentration in mol/dm3. (Mr of NaCl = 58.5 g/mol)
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Using concentrations of solutions in mol/dm3 (chemistry only) (HT only)
Question
If 10 g of sodium chloride (NaCl) is dissolved in 0.5 dm3 of solution, calculate the concentration in mol/dm3. (Mr of NaCl = 58.5 g/mol)
Answer
The answer is 0.34 g.
Explanation
This uses Concentration in g/dm3 because the objective is about (chemistry only) (HT only) Rearrange concentration equations. (MS 3b). The reasoning belongs to Concentrations in mol/dm3 and titration calculations within Using concentrations of solutions in mol/dm3 (chemistry only) (HT only), so it should not be confused with nearby quantitative ideas such as mass, moles, concentration, yield, atom economy, or gas volume unless those are named in the objective. Use the focus term chemistry only to keep the answer aligned with AQA GCSE Chemistry 8462 Unit 4.3.
Common mistake
Misunderstanding Rearrangement
Students often forget to isolate the variable they need when rearranging concentration equations, leading to incorrect formulas.
Practice isolating the variable step-by-step, ensuring to perform the same operation on both sides of the equation.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.