Explanation:
Crude oil distillation is a complex and capital-intensive process in petroleum refining. The crude oil distillation unit comprises distillation columns, pump-around loops, side strip.pers and a heat recovery system, known as the preheat train.
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Answer:
5)A &D 6)B
Explanation:
Mass of Fe is 55.845 u
Mass of Cl is 35.453 u
And their sum is 91.298 u
A compound contains 25.94%N and 74.06% O by mass whats the empirical formula
Answer:
the answer is NO or nitric oxide.
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Explanation:
Empirical formula is the simplest whole number ration of elements in a compound. Molecular formula is n times the empirical formula, where n is integers 1,2,... Therefore, the empirical formula is NO[tex]_2[/tex].
What is Empirical formula?Empirical formula gives the proportion of the element that is present in a compound. It does not give information about the actual number or the arrangements of the atoms.
The relation between molecular formula and empirical formula can be given as
n= molecular formula÷ empirical formula
Number of gram atoms in compound and divide by smallest Number of gram atoms in compound
N=(25.94%)÷14=1.85/1.85=1
O=( 74.06% )÷16=4.62/1.85=2
The atomic ratio is 1:2
Whole number N:O is1:2
Empirical formula corresponding to this whole number is NO[tex]_2[/tex].
Therefore, the empirical formula is NO[tex]_2[/tex].
To know more about empirical formula, here:
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Which type of rock is formed when rocks are melted deep in the Earth and cool to form new rocks?
A. Igneous
B. Metamorphic
C. Sandstone
D. Sedimentary
Answer:
igneous
Explanation:
key word: melt, cool. igneous rocks are when lava is melted then cooled off, then becoming a igneous rock.