If you add 8g of benzoic acid to 92g of an ointment base, what is final concentration (w/w) the product? _______________
8/(92+8) = 8/100 = 8%w/w.
To find the final concentration (w/w) of the product, we need to calculate the ratio of the mass of benzoic acid to the total mass of the ointment base and benzoic acid.
Final Concentration (w/w) = (mass of benzoic acid / total mass of the product) * 100
In this case, the mass of benzoic acid is given as 8g, and the total mass of the product is the sum of benzoic acid (8g) and the ointment base (92g), which is 100g.
Plugging these values into the formula:
Final Concentration (w/w) = (8g / 100g) * 100
Final Concentration (w/w) = 8%
Therefore, the final concentration (w/w) of the product is 8%.
To calculate the final concentration (w/w) of the product, you need to divide the mass of the benzoic acid by the total mass of the ointment base and benzoic acid, and then multiply the result by 100%.
Mass of benzoic acid = 8g
Total mass of ointment base and benzoic acid = 8g + 92g = 100g
Final concentration (w/w) = (Mass of benzoic acid / Total mass of ointment base and benzoic acid) * 100%
Final concentration (w/w) = (8g / 100g) * 100%
Final concentration (w/w) = 8%
The final concentration of the product is 8% (w/w).