<P> The amount of solution added in or drained out needed to be read correctly by observing at eye level straight to the bottom of `` Meniscus '' for most solutions . Before reading the data , the bubbles must all been removed from the Burette otherwise the data will be inaccurately measured . Also , reading the data at the eye level means looking straight at the bottom of the meniscus . The initial and final volumes collected will be calculated for the difference in volume which equal to the total volume of solution drained out of the Burette . The difference in volume can be calculated by taking the difference of final volume and initial volume Using the Burette with a colorless solution is sometimes difficult to observe the bottom of the meniscus so Black Strip Technique can help to accurately observe and measure the number on the scale . Moreover , the number should be reported in two decimal places , which can be done more easily by using the Black strip Technique . The black strip can be written with pen on the normal white paper or it can be printed it out . However , it is necessary to use white color paper as the background , in order to make the scale readable . </P>
<P> The amount of solution added in or drained out needed to be read correctly by observing at eye level straight to the bottom of `` Meniscus '' for most solutions . Before reading the data , the bubbles must all been removed from the Burette otherwise the data will be inaccurately measured . Also , reading the data at the eye level means looking straight at the bottom of the meniscus . The initial and final volumes collected will be calculated for the difference in volume which equal to the total volume of solution drained out of the Burette . The difference in volume can be calculated by taking the difference of final volume and initial volume Using the Burette with a colorless solution is sometimes difficult to observe the bottom of the meniscus so Black Strip Technique can help to accurately observe and measure the number on the scale . Moreover , the number should be reported in two decimal places , which can be done more easily by using the Black strip Technique . The black strip can be written with pen on the normal white paper or it can be printed it out . However , it is necessary to use white color paper as the background , in order to make the scale readable . </P>
to how many decimal places should the volume of a liquid in a burette be recorded
to how many decimal places should the volume of a liquid in a burette be recorded
two
two