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miss Akunina [59]
3 years ago
14

Ajhsggsgvsbnsnnsnwbwbsbsvsccsvsbsbnsbwvvvdsvbs​

Chemistry
2 answers:
Margarita [4]3 years ago
8 0

Explanation:

hope it is helpful to you

OverLord2011 [107]3 years ago
7 0

Answer:

thank uuuuuuu for freeeee pointssssss!!!!!..

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How many moles of bromine are needed to produce 5 moles of aluminum bromide
Verdich [7]

Answer:

7.5 mol

Step-by-step explanation:

2Al + 3Br₂ ⟶ 2AlBr₃

You want to convert moles of AlBr₃ to moles of Br₂.

The molar ratio is 3 mol Br₂:2 mol AlBr₃.

Moles of Br₂ = 5 × 3/2

Moles of Br₂ = 7.5 mol Br₂

You need 7.5 mol of Br₂ to produce 5 mol of AlBr₃.

4 0
4 years ago
Is black coffee slightly acidic
tatiyna
Answer:  "Yes".
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Ecstasy is one example of which of the following?
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Answer:

Narcotics

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The reaction of carboxylic acids with alcohol in the presence of an acid catalyst yields Select one: amides O esters O no reacti
kumpel [21]

Answer:

esters

Explanation:

The -OR group of the alcohol replaces the -OH of the carboxylic acid, forming an ester. See attachment for condensed mechanism.

4 0
3 years ago
when a 12.7 g chunk of zinc dissolves in 500. ml of 1.450 m hcl, what is the concentration of hydrogen ions remaining in the fin
Schach [20]

Concentration of hydrogen ions remaining in the final solution is .673 M

In original solution we have 1.450M of HCl

1.450 M means 1.450 moles of HCl in 1 liter of water

Therefore, number of moles of HCl in 500ml of water will be

                                                           =  1.450*0.5 moles

                                                           =  0.725 moles of HCl

Reaction between HCl and Zn happens when zinc is added -

         Zn(s)  +  2HCl     →      ZnCl_{2}  +  H_{2}

Therefore two moles of HCl is needed for 1 mole of zinc

Thus number of moles of HCl needed to react with 12.7g of Zinc will be

                                   =  (12.7/ 65.38   moles      of Zn )* (2moles of HCl/mole of Zn)

                                   = .388 Moles

So moles of HCl left  = 0.725 - .3888

                                  =  0.3365 moles

In 1 Mole of HCl there is 1 mole of H because

                                    HCl  →  H^{+}  +  Cl^{-}

Therefore in 0.3365 mole HCl there will be 0.3365 moles of H

Thus final concentration of H ions in final solution is =

                                      =  0.3365mole/0.5 L

                                      = 0.673M

To know more about concentration in solution

brainly.com/question/22837979

#SPJ4

8 0
2 years ago
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