Question

Multiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits109.0g / 70.132 mL = 1.55 g/mL I want to know if my answer of 1.55 is correct and rounded correctly

Answer 1

Calculations :

109.0g /70.132ml = 1.554212057

• In order to find the significant digit for this number (1.554212057 ); we need to consider each of the digits of a number that were used to get to the answer .

• In this instance 109.0 = 4 significant digits, and 70.132 = ,5 ,significant digit . meaning our maximun numbers of significant digit should be equal to ,5 .

,

• So ,1.554212057 will be rounded off to 5 significant numbers

The most numbers of significant digits will be 109.0g /70.132ml = 109.0g /70.132ml = 1.55422The least number of digits = 4 , therefore final answer will be 109.0g /70.132ml = 1.554