Chemistry, 30.01.2022 07:10 patricklcc07777
A) In an experiment, a student needed to use a 0.25 M NaOH solution as standard solution. He prepared 250 mL of the working solution from a stock solution labeled as 50% NaOH. Despite knowing the concentration of the stock and working solutions, the student still needs to standardize the working solution. Give one property of NaOH that explains why the student is still required to standardize the working solution despite knowing he was preparing 0.25 M NaOH solution from the stock solution. Justify your answer. (2 marks)
Answers: 1
Chemistry, 21.06.2019 22:50, ajaydonlee
Select the correct answer how does the heat content of the reaction change in the process of photosynthesis when a glucose molecule is formed? ca the value of is negative the value of qis positive the value of a remains constant the value of a decreases the value of equals zero e
Answers: 2
A) In an experiment, a student needed to use a 0.25 M NaOH solution as standard solution. He prepare...
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