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
Inessa [10]
4 years ago
12

A compound containing the elements C, H, N, & O is analyzed. When a 1.2359 g sample is burned in excess oxygen, 2.241 g of C

O2(g) is formed. The combustion Analysis also showed that the sample contained 0.0648 g of H.
(i) Determine the mass, in grams, of C in the 1.2359 g sample
(ii) When the compound is analyzed for N content only, the mass percent of N is found to be 28.84%.
(iii) Determine the mass, in grams, of O in the original 1.2359 g sample of the compound.
(iv) Determine the empirical formula of the compound.
Chemistry
1 answer:
REY [17]4 years ago
4 0
I believe the answer is number three
You might be interested in
What is the mass of 0.572 moles of Al?
kozerog [31]
Answer: 15.433704

Use the periodic table to check the atomic mass, this is the number of grams per mole → 1 mole of Aluminum is 26.982 g
5 0
3 years ago
During the nuclear fission of plutonium-244, barium-144 produced, along with an unknown nucleus and three neutrons. What must be
Marta_Voda [28]

Answer:

Explanation: In the previous section we listed four characteristics of radioactivity and nuclear decay that form the basis for the use of radioisotopes in the health and biological sciences. A fifth characteristic of nuclear reactions is that they release enormous amounts of energy. The first nuclear reactor to achieve controlled nuclear disintegration was built in the early 1940s by Enrico Fermi and his colleagues at the University of Chicago. Since that time, a great deal of effort and expense has gone into developing nuclear reactors as a source of energy. The nuclear reactions presently used or studied by the nuclear power industry fall into two categories: fission reactions and fusion reactions

6 0
2 years ago
Which of the following are held together by nonpolar convalent bonds?
Olin [163]

A. Atoms of chlorine (Cl)

Explanation:

The atoms of chlorine are held together by non-polar covalent bonds.

  • Covalent bonds are formed between two or more atoms having zero or very small electronegativity difference.
  • For homonuclear molecules where the two bonding atom are of the same kind, the electronegativity difference is zero.
  • This covalent bond type is called non-polar covalent bond.
  • In this bond type, there is equal sharing of the electron pair between the atoms and there is no electrostatic charge on the molecule.

Learn more:

Covalent bond brainly.com/question/5258547

#learnwithBrainly

6 0
3 years ago
Please answer this question​
vova2212 [387]

Answer:

Yes

Explanation:

Natural gas is colorless and odorless, and explosive, so a sulfur-smell (similar to rotten eggs) is usually added for early detection of leaks. ... Natural gas is a fossil fuel. Natural gas is a non-renewable hydrocarbon used as a source of energy for heating, cooking, and electricity generation.

5 0
3 years ago
The Law of Multiple Proportions states that ____.
harkovskaia [24]

Answer: when two elements combine, A and B, the ratio of the weight of B combining with A is always a whole number

Explanation:

5 0
3 years ago
Other questions:
  • The light reactions synthesize ATP, NADPH, and O2 using which of the the following process(es):
    10·2 answers
  • 3. Under certain conditions, oxygen gas (O2) has a density of 0.00134 g/mL. Find the volume occupied by 250.0 g of O2 under the
    5·2 answers
  • In a water molecule, two hydrogen atoms bind to one oxygen atom. How many lone pairs of electrons will be shown around each hydr
    9·2 answers
  • PLEASE HELP!!!!!!!!!
    10·1 answer
  • Miranda gets a small cut on her thumb after she breaks a beaker, and she begins to look around for the lab first aid kit. What i
    11·2 answers
  • A sample of ink is put in the center of filter paper . Several drops of ethanol are then put on the ink mark. Two concentric rin
    5·1 answer
  • When you turn off lights in empty rooms, what are you practising?
    8·1 answer
  • The structural formula of 2-methyl-propane<br>-2-ol​
    12·1 answer
  • When carbon-containing compounds are burned in a limited amount of air, some CO(g) as well as CO₂(g) is produced. A gaseous prod
    15·1 answer
  • A teacher carried out a class demonstration on
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!