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daebreonnakelly
03.12.2020 •
Chemistry
Explain how kingdoms and domains are different.
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Ответ:
A domain is a taxonomic category above the kingdom level. The three domains are: Bacteria, Archaea, and Eukarya, which are the major categories of life. Essentially, domains are superkingdoms. A kingdom is a taxonomic group that contains one or more phyla. The four traditional kingdoms of Eukarya include: Protista, Fungi, Plantae, and Animalia.
Explanation:
Ответ:
55.83 grams is the mass of Calcium Phosphate will be formed according to the reaction when 75.2 grams of Calcium Sulfate are reacted with an unlimited amount of Sodium Phosphate.
Explanation:
Data given:
mass of calcium sulphate reacted= 75.2 grams
atomic mass of calcium sulphate = 136.14 grams/mole
balanced chemical reaction equation:
3CaS
+2
(P
)
⇒
(P
)
+ 3
S![O_{4}](/tpl/images/0596/4413/d0c90.png)
number of moles of calcium phosphate given will be calculated as:
number of moles =![\frac{mass}{atomic mass of 1 mole}](/tpl/images/0596/4413/3343d.png)
putting the values in the above formula, we get
number of moles =![\frac{75.2}{136.4}](/tpl/images/0596/4413/4f8aa.png)
= 0.55 moles of CaS
is given
From the balanced equation:
3 moles of CaS
reacts to give 1 mole of calcium phosphate
so, 0.55 moles of CaS
will react to form x moles of calcium phosphate
3x = 0.55
x = 0.18 moles of calcium phosphate is formed
mass = number of moles x atomic mass of calcium phosphate
(atomic mass of
(P
)
=310.18 grams/mole)
putting the values in the formula:
mass = 0.18 x 310.18
= 55.83 grams of calcium phosphate is formed.