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
stiv31 [10]
3 years ago
6

A patient arrives in the emergency with a burn caused by steam. Calculate the heat that released when 17.7 g of steam

Chemistry
1 answer:
MaRussiya [10]3 years ago
3 0

The steam releases 39.9 kJ when it condenses..

The steam condenses and transfers its energy to the skin.

<em>q = m</em>Δ<em>H</em>_cond = 17.7 g × (-2257 J/1 g) = -39 900 kJ = -39.9 kJ

The negative sign shows that the steam is releasing energy

You might be interested in
What is the concentration of a 0.750 l solution that contains 52.0 g of glucose (c6h12o6)?
vodka [1.7K]
Concentration of Solutions is oftenly expressed in Molarity. Molarity is the number of moles of solute dissolved per volume of solution.

                             Molarity  =  Moles / Volume
As,
      Moles  =  Mass / M.mass
So,
                             Molarity  =  Mass / M.mass × Volume   ---- (1)

Data Given;
                   Volume  =  0.750 L

                   Mass  =  52 g

                   M.mass  =  180 g/mol

Putting Values in eq.1,

                     Molarity  =  52 g ÷ (180 g.mol⁻¹ × 0.750 L)

                     Molarity  =  0.385 mol.L⁻¹
7 0
3 years ago
What is point group of allene?​
Fantom [35]

Allene (1,2-propadiene) has point group D2d, itself is achiral because it has two planes of symmetry. ... An allene with substituents on one terminal carbon atom are unlike and substituent on other terminal carbon atoms are same, allene will be achiral. It will have one symmetry plane.

Hope this helped :)

4 0
3 years ago
Read 2 more answers
In 25 words or fewer, what do you think a scientist would want to explain about this soda?
Gnesinka [82]

Answer:

This soda is brown, sweet, has high carbonation, and is about 200 calories when consumed.

Explanation:

:)

8 0
2 years ago
Calculate the mass in grams for a single molecule of carbon monoxide​
Oxana [17]

Answer:

7.307 x 10^-23

Explanation:

mass of one molecule = mr/ avogadros number

= 44/6.022 x 10^23

= 7.307x 10^-23

4 0
3 years ago
Which of the following is the main function of the Circulatory System?
kolbaska11 [484]

Answer:

B: The transport oxygen and nutrients around your body and help to get rid of wastes

Explanation:

The circulatory system carries oxygen and nutrients to the body, but it can also help get rid of waste (though that isn't a huge function of it).

8 0
3 years ago
Other questions:
  • If a mass that weighs 8 kg is held at a height of 10 m, what is its potential energy?
    14·1 answer
  • Enter your answer in the provided box. To draw a Lewis structure, first add the number of outer (valence) electrons contributed
    10·1 answer
  • How is weed bad to smoke? And do you smoke?
    10·2 answers
  • When an atom loses one or more electrons, this atom becomes a
    9·2 answers
  • Please do it correctly!
    7·2 answers
  • The -OH group cannot exhibit inductive effect? true/false, and reason for ur choice​
    11·1 answer
  • A chemist wants to extract copper metal from copper chloride solution. The chemist places 0.50 grams of aluminum foil in a solut
    14·2 answers
  • Based on the balanced equation: 2 K + Cl2 --&gt; 2KCl what is the mole ratio of K to KCl
    15·1 answer
  • Please help!
    12·1 answer
  • What would happen to the oxygen atoms in ozone if the ozone layer were completely destroyed by ultraviolet radiation?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!