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klively
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How do you work these problem? I need each step Please.
1. The concentration of the present dye is 95%, and the concentration of the new dye is 76%. How many grams of the new dye are needed to make a 100 ml of 0.3% solution with the same staining intensity as what was obtained with the old dye?
2. The concentration of the present dye is 82%, and the concentration of the new dye is 96%. How many grams of new dye are needed to make up 250 ml of 0.5% solution with the same staining intensity as what was obtained with the old dye?
3. The concentration of the present dye is 76%, and the new dye is 95%. How many grams of the new dye are needed to make 50 ml of 5% solution with the same staining intensity as what was obtained with the old dye?
Thanks in advance!
klively
1. The concentration of the present dye is 95%, and the concentration of the new dye is 76%. How many grams of the new dye are needed to make a 100 ml of 0.3% solution with the same staining intensity as what was obtained with the old dye?
2. The concentration of the present dye is 82%, and the concentration of the new dye is 96%. How many grams of new dye are needed to make up 250 ml of 0.5% solution with the same staining intensity as what was obtained with the old dye?
3. The concentration of the present dye is 76%, and the new dye is 95%. How many grams of the new dye are needed to make 50 ml of 5% solution with the same staining intensity as what was obtained with the old dye?
Thanks in advance!
klively