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
Tracy observes an organism that lives in a lake by her house. The organism has an internal skeleton, scales, fins, and gills. Th
andrey2020 [161]
I'd say B. Its most likely a fish.
8 0
2 years ago
Read 2 more answers
Which substance can be broken down by chemical means?
zepelin [54]
Methanol is the substance that can be broken down by chemical means, the remaining ones are elements.
4 0
3 years ago
Read 2 more answers
Rounded to the nearest whole number, how many neutrons, on average, are in an atom of osmium? 76 114 190 266
Sonja [21]
Osmium has 114 neutrons on average
5 0
3 years ago
Read 2 more answers
Use the definition of molarity to calculate the concentration of 12.34 g of CaSO4 completely dissolved in water, with a solution
Ede4ka [16]

Answer:

[CaSO₄] = 36.26×10⁻² mol/L

Explanation:

Molarity (M) → mol/L → moles of solute in 1L of solution

Let's convert the volume from mL to L

250 mL . 1L/1000 mL = 0.250L

We need to determine the moles of solute. (mass / molar mass)

12.34 g / 136.13 g/mol = 0.0906 mol

M → 0.0906 mol / 0.250L = 36.26×10⁻² mol/L

8 0
3 years ago
A hot air ballon will rise in air because:
solmaris [256]

Answer: C

Explanation:

Hot air is a lot less dense for a few reasons. Hot air essentially means the particles have more kinetic energy, and move around a lot more. Cold air is dense because the particles move a lot less, have less energy, and are closer together.

7 0
2 years ago
Read 2 more answers
Other questions:
  • A gas has a volume of 4.54 L at 1.65 atm and 75.0°C. At what pressure would the volume of the gas be increased to 5.33 L if the
    14·1 answer
  • How many grams of dry nh4cl need to be added to 2.00 l of a 0.600 m solution of ammonia, nh3, to prepare a buffer solution that
    15·1 answer
  • Nitrogen gas reacts with hydrogen gas to form nitrogen trihydride?
    15·1 answer
  • Which of the following has the shortest half life?
    15·1 answer
  • Explain why baking soda, nahco3, is commonly used as an emergency safety remedy for lab spills that are acids or bases. support
    10·2 answers
  • calculate the number of grams of magnesium in 50g of magnesium sulfide. Use percentage composition and gravimetric factor.
    8·1 answer
  • I need help with the true or false
    8·2 answers
  • What is this please helpme
    14·2 answers
  • What is the name of Br6F10 ?
    10·1 answer
  • Help me!<br>I need some quick answers pls​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!