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2 years ago

How many miles of Fe are in 11.8 g of Fe

Chemistry

2 answers:

kenny6666 [7]2 years ago

8 0

The answer is 32 hope this helped

e-lub [12.9K]2 years ago

7 0

Answer:

Explanation:

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Convert the following temperatures to degrees Celsius or Fahrenheit: (a) 95Â°F, the temperature on a hot summer day; (b) 12Â°F,

Elis [28]

Answer:

a) 35°C, the temperature on a hot summer day

b) -11.11°C, the temperature on a cold winter day

c) a 38.88°C fever

d) a furnace operating at 1011.11°C

e) 523.67°F ( theoretically the lowest attainable temperature )

Explanation:

°C = ( °F - 32 ) / 1.8
°F = ( 1.8 * °C ) +32

a) 95°F ⇒ °C = ( 95 - 32 ) / 1.8 = 35°C

b) 12°F ⇒ °C = ( 12 - 32 ) / 1.8 = -11.11°C

c) 102°F ⇒ °C = ( 102 -32 ) / 1.8 = 38.88°C

d) 1852°F ⇒ °C = ( 1852 -32 ) / 1.8 = 1011.11°C

e) 273.15°C ⇒ °F = ( 1.8 * 273.15 ) + 32 = 523.67°F

4 0

2 years ago

Earthquakes , volcanoes mountains and oceans trenches are most closely associated with which plate boundary?

masya89 [10]

Answer:

continental plate boundary

8 0

2 years ago

Consider the reaction 2CO(g) + O2(g)2CO2(g) Using standard thermodynamic data at 298K, calculate the entropy change for the surr

Marizza181 [45]

Answer: The value of $\Delta S^o$ for the surrounding when given amount of CO is reacted is 432.52 J/K

Explanation:

Entropy change is defined as the difference in entropy of all the product and the reactants each multiplied with their respective number of moles.

The equation used to calculate entropy change is of a reaction is:

$\Delta S^o_{rxn}=\sum [n\times \Delta S^o_{(product)}]-\sum [n\times \Delta S^o_{(reactant)}]$

For the given chemical reaction:

$2CO(g)+O_2(g)\rightarrow 2CO_2(g)$

The equation for the entropy change of the above reaction is:

$\Delta S^o_{rxn}=[(2\times \Delta S^o_{(CO_2(g))})]-[(1\times \Delta S^o_{(O_2(g))})+(2\times \Delta S^o_{(CO(g))})]$

We are given:

$\Delta S^o_{(CO_2(g))}=213.74J/K.mol\\\Delta S^o_{(O_2)}=205.14J/K.mol\\\Delta S^o_{(CO)}=197.674J/K.mol$

Putting values in above equation, we get:

$\Delta S^o_{rxn}=[(2\times (213.74))]-[(1\times (205.14))+(2\times (197.674))]\\\\\Delta S^o_{rxn}=-173.008J/K$

Entropy change of the surrounding = - (Entropy change of the system) = -(-173.008) J/K = 173.008 J/K

We are given:

Moles of CO gas reacted = 2.25 moles

By Stoichiometry of the reaction:

When 2 moles of CO is reacted, the entropy change of the surrounding will be 173.008 J/K

So, when 2.25 moles of CO is reacted, the entropy change of the surrounding will be = $\frac{173.008}{1}\times 2.25=432.52J/K$

Hence, the value of $\Delta S^o$ for the surrounding when given amount of CO is reacted is 432.52 J/K

3 0

2 years ago

The range in size of most atomic radii is approximately _____.

Mashutka [201]

The range in size of most atomic radii is approximately 5 × 10−21 m to 2 × 10−20 m. The rest of the choices do not answer the question above.

8 0

2 years ago

Read 2 more answers

Which of the following sets are isoelectronic (i.e., have the same number of electrons)? i. Br-, Kr, Sr2+ ii. C, N-, O2- iii. Mg

il63 [147K]

Answer:

ii. $C,\ N^-,\ O^{2-}$

Explanation:

Isoelectric species are the species which have same number of electrons.

From the given options:-

$C,\ N^-,\ O^{2-}$ are the isoelectric species.

All the three species have same number of electrons which is equal to 6.

Carbon has 6 electrons.

$N^-$ has 6 electrons.

$O^{2-}$ has 6 electrons.

8 0

2 years ago