Question

1- a laboratory procedure calls for heating 50 milliliters of a liquid sugar solution to 60°c. which piece of laboratory equipment will not be needed? a) protective eyewear b) thermometer c) graduated cylinder d) ruler

Explanation:

Protective eyewear is for safety, thermometer is to measure temperature, graduated cylinder is to measure 50 - milliliters of liquid. A ruler is used for measuring length and is not relevant for heating a liquid sugar solution to a certain temperature and measuring its volume.

Answer:

D. ruler