URGENT HELP NEEDED PLEASE ANSWER VERY SOON,
WILL MARK RIGHT ANSWER AS BRAINIEST!!!
10.0 g of a mixture of copper powder and magnesium powder was mixed with 100 cm3 of 1.00 mol dm'3 hydrochloric
acid. The copper does not react, but the magnesium does as shown:
Mg + 2 HCI ā* MgCI2 + H2
The resulting solution was ļ¬ltered to remove unreacted copper and then made up to 250 cm3 with water. 25.0 cm3 of
this solution was found to neutralise 36.8 cm3 of 0.200 mol dm'3 NaOH. Find the % by mass of the magnesium in the
metal powder mixture.
