Final answer:
The percent strength of Juice A and Juice B in Step 6 is 30.2% and 69.8%, respectively. In Step 11, the percent strength of Juice A is 49.1% in the mixture. The mass in grams of Juice A cannot be determined without knowing its density.
Step-by-step explanation:
To calculate the percent strength of Juice A and Juice B, we need to divide the volume of each juice by the total volume and multiply by 100. For Juice A: (29 mL / 96 mL) * 100 = 30.2%. For Juice B: (67 mL / 96 mL) * 100 = 69.8%.
To find the percent strength and grams of Juice A in the mixture from Step 11, we can use the same calculation. The total volume is 55 mL (27 mL + 28 mL). Juice A accounts for 27 mL of the mixture, so the percent strength is (27 mL / 55 mL) * 100 = 49.1%.
To calculate the grams of Juice A, we need to know the density of Juice A. Without that information, we cannot determine the mass in grams.