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
azamat
3 years ago
11

How much ice in grams would have to melt to lower the temperature of 360 mL of water from 45 ∘C to 0 ∘C? (Assume that the densit

y of water is 1.0 g/mL.) Express your answer using two significant figures.
Chemistry
1 answer:
Marysya12 [62]3 years ago
3 0

Answer

203.7g

Explanation:

Heat gained= - heat lost

From the question

Mass of water = 360g

Heat capacity of water= 4.2Jg-1

Latent heat of ice= 334Jg-1

ml= -mcθ

m×334= -(360×4.2×(0-45))

334m= 68040

m= 68040/334

=203.7g

You might be interested in
How many protons, neutrons, and electrons are in a silver atom, with a mass number of 108?
sukhopar [10]
Protons=47
nuetrons=61
electrons=47
7 0
3 years ago
File:
givi [52]

Ummm I just need to answer questions sorry!!!

8 0
4 years ago
Help!!
anyanavicka [17]

I believe this a PV = nRT question whereas

you re write the formula and solve for volume

V = nRT/ P

then you input the values

P= pressure constant

V= x

n = moles = 0.2540

R = gas constant should be 8.314J mol

T = C degrees + 273.15 = K

solve for voume

make sure all units match

and use sig figs!!!!

7 0
3 years ago
Approximately what percentage of a human's DNA is used for coding Information for the synthesis of proteins?
skelet666 [1.2K]
I’m pretty sure it is 25 % :))
4 0
3 years ago
The mixing of which pair of reactants will result in a precipitation reaction?
Maru [420]

Answer:

K2SO4(aq) + Ba(NO3)2(aq)

Explanation:

K2SO4(aq) + Ba(NO3)2(aq)= 2KNO3(aq) + BaSO4(s)

The reaction produces BaSO4

Which precipitates as the insoluble product and Soluble KNO3 solution

8 0
3 years ago
Other questions:
  • A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains of water at . During the react
    10·1 answer
  • (a) How much negative charge is on each oxygen of the carbonate ion?
    5·1 answer
  • .
    12·2 answers
  • An element's atomic number is 45. how many electrons would an atom of this element have?
    9·1 answer
  • • Can you explain what a scientific theory is and what a scientific law is
    5·2 answers
  • What speeds up a chemical reaction
    9·1 answer
  • How many Joules are present in 7401 kJ?
    5·1 answer
  • The definition of a chemical change is when two or more substances (molecules) combine to form a new substance (or new molecules
    9·2 answers
  • Mr. Summers observed that kids with hot dogs are happy. This observation led to a hypothesis that hot dogs must make kids happy.
    9·1 answer
  • Which describes a characteristic of water that is responsible for frost wedging? (1 point) O Water expands as it freezes O Water
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!