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jekas [21]
3 years ago
13

URGENT What is the total volume of a lead can if it has a mass of 800g.

Chemistry
1 answer:
Sonja [21]3 years ago
5 0

Answer:

750

Explanation:

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If 1.00 g of a hydrocarbon is combusted and found to produce 3.14 g of co2, what is the empirical formula of the hydrocarbon?
photoshop1234 [79]
The combustion reaction is as expressed,

                CxHy + O2 --> CO2 + H2O

The mass fraction of carbon in CO2 is 3/11. Hence,
       mass of C in CO2 = (3.14 g)(3/11) = 0.86 g C.

Given that we have 1 g of the hydrocarbon, the mass of H is equal to 0.14 g. 

     moles of C = 0.86 g C / 12 g = 0.0713
     moles of H = 0.14 g H / 1 g  = 0.14

The empirical formula for the hydrocarbon is therefore, CH₂.
7 0
3 years ago
Will soapy water evaporate faster than water
love history [14]
The rate of evaporation would decrease because of
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4 0
3 years ago
How many grams of Chlorine are there in 1000 g of Iron(III) chloride?
Daniel [21]
Approx.
15
⋅
g
of metal.
Explanation:
Moles of iron oxide,
F
e
2
O
3

=

21.6
⋅
g
159.69
⋅
g
⋅
m
o
l
=

0.135
⋅
m
o
l
with respect to the oxide.
But by the composition of the oxide, there are thus
2
×
0.135
⋅
m
o
l
×
55.8
⋅
g
⋅
m
o
l
−
1

iron metal

=

?
?
g
.
An extraordinary percentage of our budgets goes into rust prevention;
iron(III) oxide
is only part of the redox chemistry. Once you put up a bridge or a skyscraper, which is inevitably steel-based structure, it will begin to corrode.
3 0
4 years ago
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Which statement is true if the (triangle here)Hrxn of a reaction is positive?
jek_recluse [69]
The reaction is endothermic.
5 0
3 years ago
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WW
SVETLANKA909090 [29]
11 is the answer hope that helps
4 0
3 years ago
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