Chemistry, 23.02.2022 15:30, brookebeatrice8

Place an empty 250 mL beaker on the balance and record its mass. Add your unknown rubber stopper to the beaker and record the mass again. Subtract these two values (with correct Sig. Fig.) to calculate the mass of the rubber stopper. (This technique is known as weighing by difference) b) Mass of an empty 250 mL Beaker (g) 155.625 g c) Mass of the 250 mL Beaker and Rubber Stopper (g) 180.825 g d) Mass of the unknown Rubber Stopper (g)

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Place an empty 250 mL beaker on the balance and record its mass. Add your unknown rubber stopper to...