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Leno4ka [110]
3 years ago
14

Given that hclo4 is a strong acid, how would you classify the basicity of clo−4?

Chemistry
1 answer:
Mandarinka [93]3 years ago
8 0
As a conjugate base of a strong acid,ClO4-would be classified as having a negligible basicity. The basicity of a chemical species is normally expressed by the acidity of the conjugate acid. The basicity of an acid is the number of hydrogen ions, which can be produced by one molecule of the acid. 
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A materials scientist has created an alloy containing aluminum, copper, and zinc, and wants to determine the percent composition
liubo4ka [24]

Answer:

0.8749 grams of hydrogen gas was formed from the reaction.

Explanation:

P = Pressure of hydrogen gad= 744 Torr = 0.98 atm

(1 atm = 760 Torr)

V = Volume of hydrogen gas= 11 L

n = number of moles of hydrogen gas= ?

R = Gas constant = 0.0821 L.atm/mol.K

T = Temperature of vapor = 27.0 °C = 300.15 K

Putting values in above equation, we get:

Using an ideal gas equation:

PV=nRT

n=\frac{PV}{RT}=\frac{0.98 atm\times 11 L}{0.0821 L atm/mol K\times 300.15 K}

n = 0.4374 moles

Mass of 0.4374 moles of hydrogen gas:

0.4374 mol × 2 g/mol = 0.8749 g

0.8749 grams of hydrogen gas was formed from the reaction.

7 0
3 years ago
Please help! This is for a test and I want to have a good grade. Have a great day! :)
elena-s [515]

Answer:

genetic engineering !! :)

Explanation:

also, i love the pfp <3

6 0
3 years ago
What property can be used to determine if a sample is a pure substance or a mixture?
Yuliya22 [10]

Answer:

Melting point

Explanation:

Pure substances have sharp melting and boiling points while impurities lower the melting point and raise the boiling point

7 0
2 years ago
What is the molarity of 1 mole of HCl in 5 liters of solution?
kicyunya [14]
Molarity = moles of solute(HCl)
                  ------------------------------------
                   volume of the solution
               
                =   1
                    ------
                     5 
               
                =  0.2M.

Hence option B is correct.
Hope this helps!!
5 0
3 years ago
Read 2 more answers
A ___________ ion is made of 2 or more atoms of different elements
Elena L [17]

Answer: polyatomic

Explanation:hope you find helpful

7 0
2 years ago
Read 2 more answers
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