Question 1086675
In words:
[ ml / student ] x [ students / class ] x [ number of classes ] = [ total ml ]
and then,
[ total ml ] x [ liters / ml ] = [ total liters ]
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{{{ 95*23*5 = 10925 }}} ml
and
{{{ 10925*( 1/1000 ) = 10.925 }}} liters
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If the acid comes in 1L bottles, then 11 bottles are needed