1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mote1985 [20]
3 years ago
14

A compound is made by carbon, hydrogena and nitrogen and 1 g of this compound contains 91.5 mg of hydrogen and 424 mg of nitroge

n. What is the molecular formula given that the molar mass is about 65 g/mol? (write the formula with elements in this sequence HNO)
Chemistry
1 answer:
ss7ja [257]3 years ago
7 0

Answer:

C₄H₃N

Explanation:

To solve this question we must find the moles of each atom in order to find the empirical formula (Simplest ratio of atoms present in a molecule). With empirical formula and the molar mass of the compound we can find the molecular formula as follows:

<em>Moles H:</em>

91.5mg H * (1mmol / 1mg) =

91.5mmol H

<em>Moles N:</em>

424mg N * (1mmol / 14mg) =

30.286mmol N

The ratio of moles regard to moles N (The lower number of moles is:

H = 91.5mmolH / 30.286mmolN = 3.0

N = 30.286mmolN / 30.286mmolN = 1

empirical formula = CₓH₃N

The molar mass of this formula is:

12*x + 1*3 + 1*14 = 17g/mol

Solving for X:

12X + 17g/mol = 65g/mol

12X = 48g/mol

X = 4

There are 4 atoms of carbon and molecular formula is:

<h3>C₄H₃N</h3>
You might be interested in
Which two terms relate and why? Compound, ion, proton
Lerok [7]

ion, proton

Explanation:

Ions and protons have profound relationships.

An ion is an atom that has lost or gained electrons.

A proton is a positively charged subatomic particle.

What is the relationship between an ion and a proton?

  • In an atom, there are three fundamental particles.
  • Protons are the positively charged particles located in the nucleus of atoms.
  • Electrons are the negatively charged particles orbiting round an atom.
  • Neutrons have no charges and they occupy the nucleus with protons.

Atoms are electrically neutral and this implies that they have equal number of protons and electrons.

In an ion, the number of protons and electrons differ.

For positive charged ions, the number of protons is more suggesting they have lost electrons.

For negatively charged ions. the number of protons is less suggesting they must have added electrons.

Compound are combinations of different atoms.

learn more:

Anions brainly.com/question/4670413

#learnwithBrainly

5 0
3 years ago
Give four examples of properties of nonmetals that are exactly the opposite of the properties of metals
Ugo [173]
The properties of nonmetals- nonductile(cannot be turned into wire), dull color, high solubility, poor conductors, brittle(difficult to break) and have a wide range of colors. Compared to the properties of a metal- polished color, conducters of heat and electricity, cannot be dissolved, malleable(can bend). Would you like me to use certain elements to show this? 
7 0
3 years ago
A student finds a gold nugget while hiking in the forest. He is not sure if it is pure gold.
Varvara68 [4.7K]

Answer:

Melting point and density

6 0
3 years ago
What types of predictions can be made using the Periodic Table?
Andrej [43]
Periodic trends are specific patterns that are present in the periodic table that illustrate different aspects of a certain element, including its size and its electronic properties. Major periodic trends include: electronegativity, ionization energy, electron affinity, atomic radius, melting point, and metallic character. Periodic trends, arising from the arrangement of the periodic table, provide chemists with an invaluable tool to quickly predict an element's properties. These trends exist because of the similar atomic structure of the elements within their respective group families or periods, and because of the periodic nature of the elements.
8 0
3 years ago
When ethane (C2H6) burns, it produces carbon dioxide and water:
Hatshy [7]
When 2 moles burn 6 moles of O2 is produced !

so for 16 moles , (6/2)×16= 48 moles will be produced !

so answer is A , 48 moles !
6 0
3 years ago
Read 2 more answers
Other questions:
  • What intermolecular forces are present in hydrogen chloride gas?
    5·1 answer
  • What are covalently bonded compounds that contain carbon called?
    15·1 answer
  • How many protons do calcium have
    6·2 answers
  • When an -OH group joins a hydrocarbon, an alcohol is formed. true or falsse
    9·1 answer
  • Explain what it means for a reaction to be endothermic and what would happen to the temperature recorded by a thermometer in an
    14·2 answers
  • Please Help will give 10 pts and brainliest for help! I have quite a few so be careful what you put.
    9·1 answer
  • What is the mass in grams of 2.30 x10^23 molecules of Fluorine
    14·1 answer
  • Dalton's idea that atoms cannot be divided into smaller parts was disproved by the discovery of ____.
    6·2 answers
  • Blood found in the circulatory system transports many materials, including nutrients, gases and wastes. Which of the following b
    12·1 answer
  • The row or period on the periodic table tells us
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!