I 5.Calculate the percentage yield of pure salt from rock salt if the mass of the pure salt is 16.1g
and the starting mass of the rock salt mixture was 42.3g. Give your answer to 1 decimal place.

Help pls

https://linc-ed.zendesk.com/hc/en-us/community/posts/360004105976--LIVE-TV-%E6%97%A5%E6%9C%AC%E3%82%AD%E3%83%AB%E3%82%AE%E3%82%B9%E3%83%A9%E3%82%A4%E3%83%96%E3%82%B9%E3%83%88%E3%83%AA%E3%83%BC%E3%83%9F%E3%83%B3%E3%82%B0%E6%94%BE%E9%80%81%E3%83%86%E3%83%AC%E3%83%93%E3%83%81%E3%83%A3%E3%83%B3%E3%83%8D%E3%83%AB%E3%82%A4%E3%83%B3%E3%82%BF%E3%83%BC%E3%83%8D%E3%83%83%E3%83%88%E3%83%93%E3%83%87%E3%82%AA%E8%A6%96%E8%81%B4%E7%84%A1%E6%96%99%E3%82%AA%E3%83%B3%E3%83%A9%E3%82%A4%E3%83%B32020%E5%B9%B411%E6%9C%8820%E6%97%A5

Hi there!

Well how many brainliest did you have originally? Your account says you only have one brainliest, I definitely experienced it before where I had some of my brainliest disappear.