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Anon25 [30]
3 years ago
15

Use the following equation to answer the questions below.

Chemistry
1 answer:
sertanlavr [38]3 years ago
4 0

Answer:

Explanation:

Here is ur answer what you wanna do first is calculate the first and second numbers and letters this should be ur answer = -394 + 2 x (-242) - (-75) + 2 x 0 = -803 kJ/mol

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Click the "draw structure" button to launch the drawing utility. Propane (CH3CH2CH3) has both 1° and 2° hydrogens. Draw the carb
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Answer:

a) find attached image 1

b) find attached image 2

Explanation :

The more stable radical is formed by a reaction with smaller bond dissociation energy.

since the bond dissociation for cleavage of the bond to form primary free radical is higher, more energy must be added to form it. This makes primary free radical higher in energy and therefore less stable than secondary free radical.

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An alcohol that contains only one -oh group can be classified as a
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Alkanol [having only one oh group]
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What is the principal difference between a strong and weak acid?
jekas [21]

a strong acid fully dissociates in water to form H+ ions in water while a weak acid only partially dissociates to form H+ ions in water

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4 years ago
Click on the alignment to view it at a larger size. Scan along the aligned sequences, letter by letter, noting any positions whe
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Answer:

8 amino acids

Explanation:

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3 0
4 years ago
How many moles are in a 275g sample of K2CrO3
Marrrta [24]

Answer:

There are approximately 1.54 moles  in a 275 g sample of K_2CrO_3.

Explanation:

To find out number of moles, fistly we have to calculate molecular mass of K_2CrO_3.

There are 2 atoms of Potassium 1 atom of Chromium and 3 atoms of oxygen in the given compound.

For molecular mass we have to add the value of mass of 2 atoms of Potassium with mass of 1 atom of Chromium and with mass of 3 atoms of oxygen.

Atomic mass of Potassium = 39

Atomic mass of Chromium = 52

Atomic mass of Oxygen = 16

Now,

Molecular mass of K_2CrO_3 = 2\times 39+52+3\times 16=78+52+48=178\ gm

The molecular mass of a compound is the mass of compound in one mole.

To find out the number of moles, we have to divide given mass of compound by its molecular mass.

Number\ of\ moles=\frac{given\ mass}{molecular\ mass}

Number\ of\ moles=\frac{275}{178}= 1.54

Hence the number of moles in 275 gm of K_2CrO_3 is 1.54.

8 0
3 years ago
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