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jonny [76]
3 years ago
8

Classify these compounds as acid, base, salt, or other.? 1. ch3oh 3. hno3 5. nabr

Chemistry
2 answers:
Nesterboy [21]3 years ago
7 0

Explanation:

Acids are the species which upon dissociation in water gives hydrogen ions (H^{+}).

For example, HNO_{3} is acidic in nature because upon dissociation it releases H^{+} ions as follows.

            HNO_{3} \rightarrow H^{+} + NO^{-}_{3}

Whereas bases are the species which upon dissociation in water gives hydroxide ions (OH^{-}).

For example, NaOH is basic in nature as it releases OH^{-} ions.

Salts are the substances formed by combination of two or more different oppositely charged ions.

For example, NaCl is a salt.

Therefore, we classify the given compounds as acid, base, salt, or other as follows.

  • CH_{3}OH - Other
  • HNO_{3} - Acid
  • NaBr - Salt

ELEN [110]3 years ago
5 0
<span> </span><span>1. Alcohol(other) 
3. Acid 
5. Salt 

</span>
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A compound is found to be 30.45% n and 69.55 % o by mass. if 1.63 g of this compound occupy 389 ml at 0.00°c and 775 mm hg, what
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1) mass composition

N: 30.45%
O: 69.55%
   -----------
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2) molar composition

Divide each element by its atomic mass

N: 30.45 / 14.00 = 2.175 mol

O: 69.55 / 16.00 = 4.346875

4) Find the smallest molar proportion

Divide both by the smaller number

N: 2.175 / 2.175 = 1

O: 4.346875 / 2.175 = 1.999 = 2

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6) mass of the empirical formula

14.00 + 2 * 16.00 = 46.00 g

7) Find the number of moles of the gas using the equation pV = nRT

=> n = pV / RT = (775/760) atm * 0.389 l / (0.0821 atm*l /K*mol * 273.15K)

=> n = 0.01769 moles

8) Find molar mass

molar mass = mass in grams / number of moles = 1.63 g / 0.01769 mol = 92.14 g / mol

9) Find how many times the mass of the empirical formula is contained in the molar mass

92.14 / 46.00 = 2.00

10) Multiply the subscripts of the empirical formula by the number found in the previous step

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Answer: N2O4
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3 years ago
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Answer:

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Crystals structures can also be seen when two elements combines together and the perfect example is Al₂O₃ which is given in the question above. Just like it is given in the question above, the kind of arrangement in the crystal structure for Al₂O₃ is called HCP which stands for Hexagonally Closed Pack.

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