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Anika [276]
3 years ago
5

a gas mixture containing hydrogen, oxygen, and nitrogen has a total pressure of 840 torr. if p hydrogen = 320 torr and p oxygen

= 485 torr, what is the partial pressure of nitrogen in the mixture? please help
Chemistry
1 answer:
katrin [286]3 years ago
8 0

Answer:

what?

Explanation:NAAAAAAAAAANNNIIIIIIIIIIIIIIIII

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How many molecules of Iron(II)oxide are present in 35.2*10^-23 g of Iron (II)oxide?
slava [35]

Answer:

R.F.M of Iron (II) oxide :

{ \tt{ = (56 \times 2) + (16 \times 3)}} \\  = 160 \: g

Moles :

{ \tt{ \frac{35.2 \times  {10}^{ - 23} }{160} }} \\  = 2.2 \times  {10}^{ - 24}  \: moles

Molecules :

{ \tt{ = 2.2 \times  {10}^{ - 24}  \times 6.02 \times  {10}^{23} }} \\  = 1.3244 \: molecules

4 0
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Which of the following does not correctly describe Sn2 reactions of alkyl halides? A) The mechanism consists of a single step wi
Rashid [163]

Answer:

The correct answer is B the tertiary halides reacts faster than primary halides.

Explanation:

During SN2 reaction the nucleophile attack the alkyl halide from the opposite side resulting in the formation of transition state in which a bond is not completely broken or a new bond is not completely formed.

   After a certain period of time the nucleophile attach with the substrate by substituting the existing nuclophile.

  An increase in the bulkiness in the alkyl halide the SN2 reaction rate of that alkyl halide decreases.This phenomenon is called steric hindrance.

  So from that point of view the that statement tertiary halides reacts faster that secondary halide is not correct.

7 0
3 years ago
Name two methods scientists use to obtain empirical evidence
adell [148]
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Answer:

HCI (aq) + NaOH (aq) --> H2O (l) + NaCl (aq)

Explanation:

A double displacement reaction is a type of reaction where two reactants exchange ions to form two new compounds. Here we can see that both the acid and the base exchanged an ion each to for salt and water, 2 new products.

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