Final answer:
All digits in the measurement 750ml are significant, which includes the nonzero digits 7 and 5, and the zero, which is considered significant because it follows a significant digit and is to the right of the decimal point.
Step-by-step explanation:
In answering the question regarding whether all of the digits in the measurement of 750ml are significant, it is important to understand the rules of significant figures. In this case, the correct answer is a) Yes, all digits are significant. This is because rule 1 dictates that all nonzero digits in a measurement are significant. Therefore, since 7 and 5 are non-zero digits, they are significant, and because the zero follows a significant digit and is to the right of the decimal point, it is also significant in this context.
It's also worth noting that in the measurement of 750ml, there is an implied decimal point after the zero, suggesting that the measurement is accurate to the nearest milliliter, and thus, the zero is a measured value. This adds to the certainty that all digits presented are indeed significant in the measurement.