用=0.95的医用酒精100ml,能配制=0.75的消毒酒精多少毫升?如何配制?0.95*100/0.75约为127答:能配制=0.75的消毒酒精为127ml;加水至为100ml。
根据酒精的量不变!设需要0.95的酒精xmL有0.75·1000=0.95·x 得出x=789.5mL·
设需要0.95酒精x(x*0.95)/0.75=100x=78.94ml所以,要取78.94ml的0.95的酒精,11.06ml的水混合震荡摇匀