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IceJOKER [234]
3 years ago
10

Ehem I have thirty levels in minecraft and a full enchantment room set up what should I put it on? My diamond axe (which is my w

eapon) or my diamond pickaxe?
Chemistry
2 answers:
loris [4]3 years ago
7 0
Probably the diamond pickaxe
Schach [20]3 years ago
7 0

Answer:

pickaxe

Explanation:

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Write one scientific question about the organism in the photo
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How has this bird adapted to it's environment throughout its existence?
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A neutron inside the nucleus of an atom breaks down into a _______ and an _____ which is emitted
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Proton and an electron .

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What is an element considered a pure substance?
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8 0
3 years ago
Calculate the feed ratio of adipic acid and hexamethylene diamine that should be employed to obtain a polyamide of approximately
artcher [175]

Answer:

r= 0.9949 (For 15,000)

r=0.995 (For 19,000)

Explanation:

We know that

Molecular weight of hexamethylene diamine = 116.21 g/mol

Molecular weight of adipic acid = 146.14 g/mol

Molecular weight of water = 18.016 g/mol

As we know that when  adipic acid  and hexamethylene diamine react then nylon 6, 6 comes out as the final product and release 2 molecule of water.

So

M_{repeat}=146.14+166.21-2\times 18.106\ g/mol

M_{repeat}=226.32\ g/mol

So

Mo= 226.32/2 =113.16 g/mol

M_n=X_nM_o

Given that

Mn= 15,000 g/mol

So

15,000 = Xn x 113.16

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Now by using Carothers equation we know that

X_n=\dfrac{1+r}{1+r-2rp}

132.55=\dfrac{1+r}{1+r-2\times 0.99r}

By calculating we get

r= 0.9949

For 19,000

19,000 = Xn x 113.16

Xn = 167.99

By calculating in same process given above we get

r=0.995

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