Question: A coin is made from silver and copper. The mass of the coin is 4.2 g. You can use this formula to work out the

A coin is made from silver and copper.

The mass of the coin is 4.2 g.

You can use this formula to work out the mass of silver in the coin:

mass of silver = 0.775 × mass of coin a Work out an estimate of the mass of the silver in this coin.

b Calculate the accurate mass of the silver in this coin.

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