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Simora [160]
3 years ago
9

A sample of a compound that contains only the elements C, H, and N is completely burned in O2 to produce 44.0 g of CO2, 45.0 g o

f H2O, and some NO2 . A possible empirical formula of the compound is
Chemistry
1 answer:
PolarNik [594]3 years ago
3 0

Explanation:

what you have to do is to multiply the given grams with the ratio of grams of that certain element in it's full compound in order to isolate the compound and get the element.

because the question did not specify how many grams of NO2 is formed, we can assume that the mass is neglegible, thus 1 mole was assigned to Nitrogen.

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determine whether the aqueous solutions of each of the following salts will be acidic, basic, or neutral
eduard

KCl is neutral because KOH is a strong base and HCl is a strong acid

To determine if the salt is neutral, acidic or basic, determine how the salt was made, or from which acid and base it was derived. Once we have determined how the salt was made, determine if the acid and base are both strong, weak or one of each.  If both are strong (e.g. NaOH + HCl), then the salt (NaCl) is NEUTRAL.  If the base is strong and the acid is weak (KOH + HCN), then the salt (KCN) is BASIC.  IF the base is weak and the acid is strong (NH3 + HCl), then the salt (NH4Cl) is ACIDIC.  If both the base and the acid are weak (NH3 + CH3COOH), then then salt (CH3COONH4) will have a pH determined by which is stronger (the acid or the base) and this will depend on the Ka of the weak acid compared to the Kb of the weak base.

KCl is neutral because KOH is a strong base and HCl is a strong acid NaCN is generally basic because NaOH is a strong base and HCN is a very week acid. NH4NO3 is usually acid because HNO3 is a strong acid and NH4OH is a week base

CH3COONH4 is exactly neutral because both NH4OH ad CH3COOH are respectively week base and week acid. Moreover, the Ka of acetic acid is exactly equal to the Kb of NH4OH

To know about strong base.

brainly.com/question/16749233

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6 0
1 year ago
Why has diamond has a high melting point
expeople1 [14]
Well since covalent bonds are strong and diamonds contains a lot of covalent bonds, it makes the diamond's melting point and boiling point very high.

6 0
3 years ago
Help asap, testining
gayaneshka [121]

Answer:

The answer is 10 degrees celsius

Explanation:

4 0
3 years ago
1.
Dahasolnce [82]

Answer:

22.5moles

Explanation:

using mole ratio,n(CO2)/n(o)=1/2

n(CO2)=1/2n(02)

n(CO2)=1/2×45

moles of carbon dioxide produced is 22.5moles

8 0
2 years ago
Question 3 (1 point)
irina1246 [14]

false

Explanation:

i took the test

4 0
2 years ago
Read 2 more answers
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