answer.
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
NeX
3 months ago
13

Combustion analysis of an unknown compound containing only carbon and hydrogen produced 0.2845 g of co2 and 0.1451 g of h2o. wha

t is the empirical formula of the compound?
Chemistry
1 answer:
VMariaS [2.9K]3 months ago
7 0
CxHy + (x+0.25)O₂ → xCO₂ + 0.5yH₂O

m(CO₂)/{xM(CO₂)}=m(H₂O)/{0.5yM(H₂O)}

0.2845/{44.01x}=0.1451/{9.01y}

x/y=0.4=2:5

The empirical formula is C₂H₅.
You might be interested in
How can you tell if a sample contains baking soda and cornstarch or baking powder?
VMariaS [2998]
You can test it by combining it with vinegar. The acetic acid present in vinegar reacts with sodium bicarbonate (baking soda) to produce carbon dioxide, resulting in an intense bubbling reaction that is harmless. Baking powder, however, won’t produce this effect.
7 0
3 months ago
Read 2 more answers
When performing a flame test using the method described in the manual, you complete the flame test of KNO3 and find a yellow col
Tems11 [2777]

Answer:

The nichrome wire has contaminants.

The sample solution might be tainted.

Explanation:

If the nichrome wire is contaminated, sodium impurities could be causing the yellow flame. The wire is initially placed in the flame without the sample to check for such impurities.

The testing solution could also be contaminated, causing it to display a color different from the anticipated shade of the test ion.

7 0
4 months ago
A chemical reaction in which bonds are broken is usually associated with ________. a synthesis forming a larger molecule the rel
alisha [2963]
The response to this inquiry involves energy release. The bonds holding molecule atoms act as energy reserves. One method of energy release occurs when these bonds are severed, allowing energy to disperse outward. This breaking leads to smaller molecules rather than the creation of a larger one.
4 0
3 months ago
The first eighteen chemical elements on the periodic table are described below in a series of statements. The first 1S letters o
castortr0y [3046]
The question appears to be confusing. The periodic table consists of elements organized by increasing atomic number.
3 0
2 months ago
An unknown liquid has a mass of 4.25 × 108 mg and a volume of 0.250 m3. what is the density of the liquid in units of g/ml?
VMariaS [2998]
Density is calculated as mass divided by volume.
  Step one:
Convert m³ to ml.
1 m³ = 1,000,000 ml
0.250 m³ x 1,000,000 = 250,000 ml
  Step two: Convert mg to g.
1 mg = 0.001 g, hence 4.25 x 10^8 mg equals 0.459 g.
Consequently, the density comes out to be 0.459 g/250,000 = 1.836 x 10^-6 g/ml.
8 0
3 months ago
Read 2 more answers
Other questions:
  • How many grams of solute are dissolved in 125.0 mL of 5.00 M NaCl (MM = 58.45)?
    7·1 answer
  • NO2 can react with the NO in smog, forming a bond between the N atoms. Draw the structure of the resulting compound, including f
    7·1 answer
  • The charged particles in the beams that Thomson studied came from atoms. As these particles moved away from their original atoms
    14·1 answer
  • What functional feature(s) does the phosphate group contribute to the structure of a phospholipid? select all that apply. select
    13·1 answer
  • Use the tabulated values of ΔG∘f to calculate E∘cell for the fuel cell breathalyzer, which employs the reaction below. (ΔG∘f for
    5·1 answer
  • If you had a 5 gram sample of lawrencium how much would still remain in 30 minutes
    6·1 answer
  • Which statement about the spectrophotometric analysis of Red 40 dye is TRUE?
    8·1 answer
  • Convert the following:<br><br> 3.9 x 10-16 mL to ML
    6·1 answer
  • One way in which elements differ from each other is the structure of the electron cloud in each element’s atoms. In an electron
    5·2 answers
  • Three people bought copper items, and they each relied on different properties of copper. Bernie bought a set of dishes that inc
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!