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
xenn [34]
3 years ago
15

The density of liquid mercury is 13.69 g/cm 3 . how many atoms of mercury are in a 17 ml sample? use "e" for "×10" and report th

e answer to at least 4 significant figures.
Chemistry
1 answer:
aivan3 [116]3 years ago
3 0
         step  one;  calculate  mass
Mass=density   x volume
    1ml=1cm^3
   13.69g/cm^3  x  17  cm^3=232.73g

  step  2;  calculate  the   number of  moles  of   mercury
(232.73g/200.59g/mol)(molar  mass  of mercury=  1.1602moles
  
by  use   of  avogdros  law
1moles =6.023E23  atoms
what about  1.1602moles
=1.1602 x 6.023E23=  6.988E23atoms



You might be interested in
How do calculate the molar mass
Katena32 [7]

Answer:

To calculate the molar mass of a compound with multiple atoms, sum all the atomic mass of the constituent atoms molar mass can also be calculated by multiplying the atomic mass in amu by the molar mass constant (1 g/mol).

7 0
3 years ago
The sculpted pinnacles in Bryce Canyon National Park are the result of _____. A. differential weathering B. frost wedging C. exf
KonstantinChe [14]

Answer:

B. frost wedging Hope i helped!

Explanation:

5 0
3 years ago
Read 2 more answers
how many moles of sodium phosphate are required to make 7.5 moles of sodium nitrate in 2Na3PO4+3Be(NO3)=6NanO3+Be3(PO4)2
KIM [24]

Answer:

<em>2.5</em> moles of sodium phosphate

Explanation:

3 Pb(NO3)2 + 2 Na3PO4 → Pb3(PO4)2 + 6 NaNO3

6 (moles in the reaction)- 7.5(moles  in the task)

2 (moles in the reaction)- x (moles in answer) ⇒6x = 2*7.5 ⇒ x = 15/6=2.5 (moles)

8 0
3 years ago
I heat 100. grams of water from a temperature of 10.0°C to a temperature of 50.0°C. The specific heat capacity of water is 4.18
mezya [45]

Answer:

=100×4,18×40

=16'720Joules

5 0
3 years ago
The exploration of the mid-cayman rise is intended to discover _______. a. what life may have been like before the evolution of
Soloha48 [4]

The exploration of the mid-cayman rise is intended to discover that what life may have been like before the evolution of photosynthesis.

<h3>What is mid - cayman rise?</h3>

Mid - cayman rise is an area or era where only some amount of light is coming but still existence of life is present there.

As we know that plants make their own food by the process called photosynthesis in the presence of light, but this is not the scenario for all the time. Before the discovery of photosynthesis plants also prepared their own food.

Hence, option (a) is correct.

To know more about photosynthesis, visit the below link:

brainly.com/question/4341036

4 0
2 years ago
Other questions:
  • I'm trying to do question number 2.56
    9·1 answer
  • Silver sulfadiazine burn-treating cream creates a barrier against bacterial invasion and releases antimicrobial agents directly
    14·1 answer
  • what is the freezing point of a 0.195m aqueous solution of K2S? (Report amount to three decimal points)
    5·1 answer
  • The measurement of how much mass is contained in a given volume is called what?
    13·1 answer
  • TRUE OR FALSE :Normal cells will not divide unless the nutrients they require are already presen True False
    12·1 answer
  • 1 Volume of certain amount of a gas at 25°C and
    11·1 answer
  • Acid-base neutralization means having a pH of 7. true or false ?
    5·2 answers
  • Na2O + H2O =&gt; NaOH *<br> Your answer<br> Balancing equations only the coefficient ratios
    9·1 answer
  • Scoring Scheme: 3-3-2-1 Part II. You considered the properties of two acid-base indicators, phenolphthalein and methyl orange. M
    7·1 answer
  • Molecular formula of sulphur trioxide by criss cross method ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!