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Alex Ar [27]
3 years ago
15

Which of the following best describes acid anhydrides?

Chemistry
1 answer:
Nutka1998 [239]3 years ago
8 0
When carbon dioxide (CO2) is dissolved in water, carbonic acid (H2CO3) is formed. The carbonic acid acts as an acid by giving off hydrogen ions to water best describes acid anhydrides. <span>

To add, </span><span>an </span>acid anhydride <span>is a compound that has two acyl groups bonded to the same oxygen atom.</span>
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Suppose you used 0.5 M NaOH to titrate your vinegar sample instead of 0.1 M. What effect does the concentration of base added ha
laiz [17]

Answer: the reliability will be worse

Explanation:

Suppose we used 0.5 M NaOH to titrate our vinegar sample instead of 0.1 M.

Now by using 0.5M instead of 0.1M we are increasing the concentration of NaOH,

We know that  the moles used = Volume x concnetration.

so for the same no of moles, if the concentration increases, the volume decreases.

Hence it will consume less NaOH.

now Since the volume decreases, the titration volume of less number will increase the % error.

Therefore the reliability will be worse.      

4 0
2 years ago
Chose the element pairings that are likely to react with each other<br> Na and K or Na and Br
kaheart [24]

Answer:

Na k

Explanation:

because na is a metal and potassium is also a metal and both are active metal so is less likely to react as no bond is formed between them

7 0
3 years ago
when you put a book on a table the table pushes on the book is that newton's 1st,2nd,or 3rd law of motion ? 
ohaa [14]
The table pushes the book and the book pushes the table
It's 3rd law
8 0
2 years ago
Consider the decomposition of a metal oxide to its elements, where M represents a generic metal. M 3 O 4 ( s ) − ⇀ ↽ − 3 M ( s )
Citrus2011 [14]

Answer:

a) ΔGrxn = 6.7 kJ/mol

b) K = 0.066

c) PO2 = 0.16 atm

Explanation:

a) The reaction is:

M₂O₃ = 2M + 3/2O₂

The expression for Gibbs energy is:

ΔGrxn = ∑Gproducts - ∑Greactants

Where

M₂O₃ = -6.7 kJ/mol

M = 0

O₂ = 0

deltaG_{rxn} =((2*0)+(3/2*0))-(1*(-6.7))=6.7kJ/mol

b) To calculate the constant we have the following expression:

lnK=-\frac{deltaG_{rxn} }{RT}

Where

ΔGrxn = 6.7 kJ/mol = 6700 J/mol

T = 298 K

R = 8.314 J/mol K

lnK=-\frac{6700}{8.314*298} =-2.704\\K=0.066

c) The equilibrium pressure of O₂ over M is:

K=P_{O2} ^{3/2} \\P_{O2}=K^{2/3} =0.066^{2/3} =0.16atm

3 0
3 years ago
The word root for a group of microorganisms living together is a. steriliz. b. prodrom. c. coloniza. d. nosocomi.
UkoKoshka [18]

The answer is C) Coloniza.

7 0
3 years ago
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