A student performs a titration and calculates the concentration of a solution to be $0.1234567$ M. The burette used has a precision of $\pm 0.02$ mL, and the volumetric flask used to prepare the solution has a precision of $\pm 0.1$ mL. Which is the most accurate way to report the concentration, considering significant figures and uncertainty?

In the context of accuracy of measurement and significant figures in expressing results of experiment, which of the following is/are correct

(1) Out of the two measurements 50.14 cm and 0.00025 ampere, the first one has greater accuracy

(2) If one travels 478 km by rail and 397 m by road, the total distance travelled is 478 km

The mass of a sample is measured as 23.647 g. If the instrument used has a precision of 0.01 g, what is the correctly rounded mass?

The length, breadth and thickness of a metal block is given by $l = 90 cm$, b=8 cm, t=2.45 cm. The volume of the block is

If the value of the resistance is 10.845Ω and the value of the current is 3.23 A, then the potential difference is 35.02935 V. its value in correct significant figures would be

A student measures two lengths as $2.99$ m and $0.0099$ m. What is the sum of these lengths, taking into account significant figures?

A chemist measures the volume of a solution as 25.34 mL using a burette with a precision of ±0.02 mL. They then dilute this solution to a final volume of 250.0 mL using a volumetric flask with a precision of ±0.1 mL. What is the absolute uncertainty in the final concentration of the diluted solution?

The value of Avogadro's number is $6.02214076 imes 10^{23}$ $mol^{-1}$. A student experimentally determines Avogadro's number to be $6.022141 imes 10^{23}$ $mol^{-1}$. When reporting this value with the correct number of significant figures reflecting the precision of the experimental result, the student should report:

A student has measured the length of a wire equal to 0.04580 m. This value of length has the number of significant figures equal to

A student calculates the volume of a sphere to be $4.1887902047863905 imes 10^3 cm^3$. If the radius measurement used in the calculation has only two significant figures, what is the correctly rounded volume?

A current of 2..34 A flows in a resistance of 11.111111${\rm{\Omega }}$. The potential difference across the given resistance with due regard for significant figure is