PLEASE HELP ME OUT WITH CHEMISTRY LAB CONCEPT!!! Weigh out some salt (sodium chl

Question

PLEASE HELP ME OUT WITH CHEMISTRY LAB CONCEPT!!!
Weigh out some salt (sodium chloride) following the two methods described below.

Method 1:
a.) zero the balance.
b.) Weigh and record the mass of a 50-mL beaker.
c.) Remove the beaker from the balance and transfer two small scoops of salt to it.
d.) Re-zero the balance.
e.)Weigh and record the mass of the beaker and salt.
f.) Determine the mass of salt in the beaker.

Method 2:
a.) place a 100-mL beaker on the balance and zero the balance using the tare (zero) function.
b.) Remove the beaker from the balance. Do not re-zero the balance.
c.) transfer two small scoops of salt to it.
d.) Place the beaker back on the balance and record the mass of salt in the beaker.

Questions:
1.) Which weighing method is more efficient – has fewer operational and arithmetical steps?
2.) Why is a container (such as beaker) used to weigh salt?

Explanation / Answer

1) method 1 is more efficient

2) because salt present in bottle will not expose to environment so cant interact with any environmental gases. ant to avoid the fallen down in balance as well as outside to get more accurate.

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