How many moles are there in 15.0 grams of SiO2
2 answers:
You might be interested in
The structural formula of <span>s-allylcysteine is shown in the picture (top figure). To create its Lewis structure, draw all its bonds between elements. Each single bond contains two electrons. There is an octet rule that must be obeyed by most elements. Each element should be surrounded with 8 electrons. The hydrogen is exempted of this rule. So, there are 4 lone pairs for the S atom, 1 lone pair for the N atom, and 2 lone pairs each for the 2 O atoms.</span>
Explanation:
According to the law of dilution,
The given data is as follows.
= 0.4782,
= ?
= 0.025
,
= 250 mL
Hence, we will calculate the value of as follows.
=
= 13.07
Thus, we can conclude that we need 13.07 mL 0.4782 M sodium thiosulfate solution using pipette.