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weeeeeb [17]
3 years ago
7

Which element is oxidized in the reaction below? fe(co)5 (l) + 2hi (g) → fe(co)4i2 (s) + co (g) + h2 (g)

Chemistry
1 answer:
Hunter-Best [27]3 years ago
7 0
The element which is oxidized  in  the  reaction below 
that is

Fe(Co)5  (l) +  2 Hi (g)=  Fe (CO)4 i2(s) +Co (g)+H2 (g)  is

 Fe   this is because   fe in Fe(CO)5  compound move from oxidation state  of  Positive five (5^+)  to  oxidation  state  of  positive  six ( 6^+)  in Fe(CO)4i2  compound.   fe  is  oxidized  by Hi  while  Hi  itself is  reduced  by   Fe,therefore Fe  act as a  reducing agent
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Burette is a very accurate measuring instrument when adding solutions and has a measurement error of 0.05 mL. 
Small volumes of solutions can be transferred from the burette at a controllable rate. 
In this instance NaOH is in the burette.
Initial reading of NaOH is 0.20 mL 
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3 years ago
A stover-to-ethanol plant produces 40,000 tonne/yr of ethanol and contains 8functionalunits:feedstockhandling,pretreatment,simul
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Answer:

FCI=458000*8*40000^{0.3}\\FCI=880818398.52 M

FCI=88.0818 MM≅88 MM

Explanation:

Empirical correlation based on the work of Bridgwater and Mumford (1979):

For Liquid or solid phase Plants:

FCI=458000*N*F^{0.3}                       F<60,000 tonne/yr     Eq (1)

FCI=7000*N*F^{0.68}                         F≥60,000 tonnes/yr   Eq (2)

Where:

N is the number of functional units

F is the process throughput tonnes/yr

In our case F=40,000 tonne/yr <60,000 tonne/yr, We are going to use Eq (1)

FCI=458000*N*F^{0.3}                       F<60,000 tonne/yr

N=8, F=40,000 tonne/yr

FCI=458000*8*40000^{0.3}\\FCI=880818398.52 M

FCI=88.0818 MM≅88 MM

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3 years ago
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frosja888 [35]

Answer:

D. period is reciprocal of frequency.

Explanation:

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mass of ethanol needed = 46.07 × 0.3655 = 16.84 g

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Fluorine is the 24th most abundant element overall and the 13th most abundant on Earth. When added to metal ores to decrease their melting temperatures for smelting, fluorite, the main mineral source of fluorine that gave the element its name, was first recorded in 1529. The Latin word fluo, which means "flow," gave the mineral its name.

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