B. a mixture contained 0.8 grams of salt, 1.3g of sio2, and 2.5g of nh4cl. what is the percent composition of the mixture? (10 pts)

Total mixture weight equals the weight of all the components added together: 0.8g salt + 1.3g SIO2 + 2.5g NH4Cl = 4.6g total To find the percent composition of the mixture, divide the weight of each component in the mixture by the total weight of the mixture and multiply by 100. For salt: 0.8g / 4.6g = 0.1739 * 100 = 17.39% salt For SIO2: 1.3g / 4.6g = 0.2826 * 100 = 28.26% SIO2 For NH4Cl: 2.5g / 4.6g = 0.5435 * 100 = 54.35% NH4Cl