Final answer:
The value of the expression 337/217 calculated by a calculator is 1.5529953917. However, it must be reported with the correct number of significant figures based on the precision of the data used. In calculations requiring significant figure consideration, the final answer might differ from the calculator's immediate output.
Step-by-step explanation:
The value of the expression calculated by a calculator when you input 337/217 would give you a numerical value. The exact value as per the information provided is 1.5529953917. However, it is important to report this value correctly with the necessary number of significant figures. When dealing with measurements, each number has a precision represented by these significant figures, and the final result should be represented with the same level of precision.
For example, if you calculate the answer for an expression involving two numbers, let's say 611 and 1027, and the calculator displays 2,001.06 as the result, the correct approach would be to limit the final answer to the ones position because that represents the farthest-right significant figure in 611 and 1027, giving us a final answer of 2001.
When calculating the concentration of hydronium ions, [H3O+], from a solution with a pH of 8.3, different calculators may require different input methods. Following the correct steps will yield the answer, which should be 5.0 × 10-9. Depending on the calculator, you may need to use the Shift or second function, type in a negative number, and then enter 8.3 to get the desired result.