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
Vikki [24]
3 years ago
15

Osmium is one of the densest elements known, what is its density if 2.72 g has a volume of 0.121 cm3?

Chemistry
2 answers:
AnnZ [28]3 years ago
7 0
Mass / volume = density
2.72g/0.121mL = 22.5g/mL

1cm3 = 1mL
kramer3 years ago
3 0

Explanation:

The given data is as follows.

          mass = 2.72 g

          volume = 0.121 cm^{3}

As the density is mass divided by volume.

Mathematically,     Density = \frac{mass}{volume}

Hence, putting the given values into the above formula and calculate the density as follows.

              Density = \frac{mass}{volume}

                           = \frac{2.72 g}{0.121 cm^{3}}

                           = 22.47 g/cm^{3}

Thus, we can conclude that density of osmium is 22.47 g/cm^{3}.

You might be interested in
Which of these will reflect light with the highest frequency?
Ronch [10]

Answer:

the correct answer is an Orange baseball.

6 0
3 years ago
What does a bomb calorimeter do?
Sunny_sXe [5.5K]
It is a constant-volume type calorimeter that measures the heat of a particular reaction or measures the calorific value of the fuels. Bomb calorimeters are built in such a way that they can withstand the large pressure produced within the calorimeter due to the reaction or burning of fuel.
7 0
3 years ago
Read 2 more answers
Which gas has approximately the same density as c2h6 at stp no nh3 h20 so2?
zmey [24]
1 mole of any gas occupy 22.4 L at STP (standard temperature and pressure, 0°C and 1 atm).

Let given gases be 1 mole. So their volumes will be the same, 22.4 liters.

Density is the ratio of mass to volume.

By formula; density= mass/volume; d=m/V

To find out masses of gases, do the mole calculation.

By formula; mole= mass/molar mass; n= m/M; m= n*M

Molar masses are calculated as
1. C₂H₆ (ethane)                 = 2*12 g/mol + 6*1 g/mol= 30 g/mol
2. NO (nitrogen monoxide) = 1*14 g/mol + 1*16 g/mol= 30 g/mol
3. NH₃ (ammonia)              = 1*14 g/mol + 3*1 g/mol= 17 g/mol
4. H₂O (water)                    = 2*1 g/mol + 1*16 g/mol= 18 g/mol
5. SO₂ (sulfur dioxide)        = 1*32 g/mol + 2*16 g/mol= 64 g/mol
Use Periodic Table to get atomic mass of elements.

Since their volumes are equal, compounds having the same molar mass will have the same density. 
Recall the formula d= m/V.

Ethane and nitrogen monoxide have the same density.

The answer is C₂H₆ and NO.
6 0
3 years ago
starting with methane ,name all the steps and write the equations involved in tetrachlorination.Remember all arrows sharing move
anygoal [31]

Answer:

See Explanation and image attached

Explanation:

Methane is an alkane. The commonest chemical reaction that alkanes undergo is substitution. During a substitution reaction, one or more atoms of hydrogen is/are replaced in the alkane.

In methane, in the presence of sunlight and molecular chlorine gas, a homolytic fission of Cl2 occurs to yield chlorine radicals in an initiation step.

The propagation steps involve reaction of the methane with chlorine radicals. Certain intermediates continue to be formed along the way until the tetrachlorination product is finally obtained.

4 0
3 years ago
2c8h18(g 25o2(g→16co2(g 18h2o(g how many moles of water are produced in this reaction
AleksandrR [38]
18 moles of water are produced in the above reaction.
Hope this helps you!
3 0
3 years ago
Read 2 more answers
Other questions:
  • In a laboratory experiment, John uses a mesh to separate soil particles from water. Which technique of separation is he using? c
    8·2 answers
  • What forces create the bent triatomic shape of a water molecule
    6·1 answer
  • Which statement best describes the greenhouse effect? It is a process by which plants are able to grow well in a warm, enclosed
    12·2 answers
  • PLEASE HELP!! What is the percentage by mass of solution formed by dissolving 27.0 grams of HCl in 102.0 grams of water? 26.5% 2
    13·1 answer
  • Use "Folded Mountain" in a sentence? For science
    6·1 answer
  • Which part of a hypothesis should the student add to this that could also be tested in other experiments?
    6·2 answers
  • Checking my answers? please help
    6·1 answer
  • Basalt with half live of 10 million years and 1/8 is remaining, how old is rock?
    11·1 answer
  • Help ASAP!!!!’
    10·1 answer
  • How do matter and energy move through an ecosystem?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!