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
stira [4]
3 years ago
11

The enthalpy change for converting 10.0 g of ice at -25.0 °C to water at 90.0 °C is __________ kJ. The specific heats of ice, wa

ter, and steam are 2.09 J/g-K, 4.18 J/g-K, and 1.84 J/g-K, respectively. For H2O, = 6.01 kJ/mol, and = 40.67 kJ/mol.
Chemistry
1 answer:
Nina [5.8K]3 years ago
6 0
AH1 = m * c1 * AT1 calculate this for ice (-25C to 0C) AH2 = AHfus(1 mole)=6.01 kJ = 6010 J AH3 = m *c3 * AT3 calculat this for water (0C to 100C) AH4 = AHvap(1mole)=40.67 kJ = 40670 J AH5= m * c5 * AT5 calculate this for steam (100C to 125C) 
Sum ---- AH1+AH2+AH3+AH4+AH5 
Data m=18g (1mole water) 
c1=specific heat ice= 2.09 J/g K c3=specific heat water= 4.18 J/g K c5=specific heat steam= 1.84 J/g K 
AT = (Tend - Tinitial) as this is a difference between temperatures it doesn't matter the units Celsius or Kelvin. Kelvin (K)=Celsius (C)+273.15 
AT1 = 0C - (-25C)= 25C= 273.15K - 248.15K= 25K AT3= 100C - 0C = 100C= 100K AT5= 125C - 100C= 25C=25K
You might be interested in
What type of energy travels through space as waves?
RideAnS [48]
Shhdhdhdbdbrjfidjdnfnfbfbxuxfnmfmfksixjnfnfntjficjfjfj
7 0
3 years ago
Read 2 more answers
Choose all the answers that apply.
Rashid [163]
B:Creates energy through fusion reactions
7 0
3 years ago
Read 2 more answers
Solid carbon tetrachloride, CCl4(s), is represented by the diagram above. The attractions between the CCl4 molecules that hold t
Ne4ueva [31]

Hi, you've asked an incomplete question. Here's the diagram that completes the question.

Answer:

<u>(B) nonpolar covalent bonds</u>

Explanation:

This structure in the diagram rightly fits the description of a non-covalent bond because there is an equal sharing of electrons of Carbon (C) and Chlorine (Cl).

<em>Remember</em> too that these elements are in their solid-state, hence the CCl4 (carbon tetrachloride) molecules are held strongly together.

7 0
2 years ago
Explain, in terms of energy, why the temperature of the reaction mixture increases
Dima020 [189]

Answer:

Magnesium reacts with dilute hydrochloric acid in a conical flask which is connected to an inverted measuring cylinder in a trough of water. The volume of hydrogen gas produced is measured over a few minutes, and the results are used to plot a graph........

8 0
2 years ago
An atom has a mass number of 43 and an<br> atomic number of 23. How many protons<br> does it have?
Airida [17]

Answer:

23

Explanation:

8 0
3 years ago
Other questions:
  • Balance the equation by inserting coefficients as needed. equation: ZnS + HBr -&gt; ZnBr_{2} + H_{2}S ZnS + HBr ⟶ ZnBr 2 + H 2 S
    5·1 answer
  • Compare and contrast mutualism and commnsalism. For both relationships, explain who does or does not benefit and who is or is no
    5·1 answer
  • What is the oxidation state of cl in hclo4?
    12·2 answers
  • A) How many grams of water are produced when 2.50 g of aluminum
    14·1 answer
  • URGENT PLEASE HELP
    10·1 answer
  • ILL MARK BRAINIEST WHOEVER ANSWERS CORRECTLY
    12·1 answer
  • Why does it matter if atoms are divisible ???
    10·1 answer
  • Write each formula to solve for density, volume and mass.
    5·1 answer
  • If you have an altitude of 55 mi. (miles), which layer of the atmosphere are you in?
    11·1 answer
  • Identify the classification of whipped cream. group of answer choices aerosol solid aerosol foam emulsion solid emulsion
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!