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
Neko [114]
1 year ago
9

A piece of metal with a mass of 23.2 g at 120.1oC is placed in a styrofoam cup containing 35.0 g of water at 22.2oC. Once the sy

stem has reached equilibrium, the final temperature of the water is 34.0oC. What is the specific heat of the metal to four significant digits? The specific heat of water is 4.18 J/g-oC.
Chemistry
1 answer:
earnstyle [38]1 year ago
3 0

Answer:

0.8797 J/g oC

Explanation:

use mcAT=mcaT

You might be interested in
Climates are classified acording to which two major factors
Oxana [17]
Precipitation and temperature
4 0
3 years ago
A roller coaster starts down a hill at 10 m/s. Three seconds later, its speed is 32 m/s. What is the roller coaster’s accelerati
erica [24]
Final velocity(v) = 32 m/s
Initial velocity(u) = 10 m/s

Using kinematic equation v = u + at, 

32 = 10 + a(3)

32-10
---------  = a
    3

a = 22
      ----
       3

a = 7.3 m/s^2.

Hence acceleration of the roller coaster is 7.3 m/s^2.

Hope this helps!!
8 0
3 years ago
Given that a 12.00 g milk chocolate bar contains 8.000 g of sugar, calculate the percentage of sugar present in 12.00 g of milk
neonofarm [45]
So in order for us to know the percentage of sugar present in a 12.00 g of milk chocolate, what we are going to do is that, we just have to divide 8 by 12 and multiply in by 100 and we get 66.67. Therefore, the percentage of sugar present in 12.00 g of milk chocolate bar is 66.67%. Hope this answers your question. Have a great day!
5 0
3 years ago
Read 2 more answers
You have a 5-liter container with 1.30 x 1024 molecules of ammonia gas (NH3) at STP.
bogdanovich [222]

Answer:

3). 1.30 × 10^(24) molecules

Explanation:

From avogadro's law which state that equal volume of all gases at the same temperature and pressure contain the same number of molecules.

We can relate it to this question as;

V₁/n₁ = V₂/n₂

Where;

V₁ is initial volume

n₁ is initial number of molecules

V₂ is final volume

n₂ is final number of molecules

Thus at STP, we have V₁ = V₂ and as such Plugging in the relevant values gives;

5/(1.30 x 10^(24)) = 5/n₂

n₂ = 1.30 x 10^(24) molecules

6 0
2 years ago
Identify the catalyst in this reaction, explain how
telo118 [61]

Question:

Sulfuric acid was once produced through the reaction of sulfur trioxide with water. Sulfur trioxide can form through the reaction of sulfur dioxide and oxygen gas. When nitrogen monoxide gas is added to the system, the reaction speeds up significantly because it proceeds through the following steps:

equations

Identify the catalyst in this reaction, explain how you know it is the catalyst, and describe how it increases the rate of the reaction.

Answer:

NO

It is present but not consumed

NO Lowers the activation energy of the reaction

Explanation:

A catalyst is a substance that is present in a chemical reaction and enables the reaction to occur at a faster rte but does not take part n the reaction

Therefore, whereby NO is not consumed, it is the catalyst

It functions by lowering the activation energy

5 0
3 years ago
Other questions:
  • What is the hydronium ion concentration of a solution whose pH is 7.30
    12·1 answer
  • Nuclear waste is
    7·1 answer
  • ASAP!!!! ILL GIVE BRAINIEST
    14·2 answers
  • 2. Identify the following as human (H) or nonhuman (N) possible sources of error:
    14·1 answer
  • If coefficients of a balanced equation are doubled the enthalpy change for reaction is
    5·1 answer
  • How are the physical and chemical properties of atoms represented on the periodic table of elements
    8·1 answer
  • How many atoms of aluminum (Al) are in 6.4 mol of aluminum
    6·1 answer
  • Write the formulas for the reactants and products. Balance the chemical equation.
    8·1 answer
  • Which type of bond does this molecule show?
    6·1 answer
  • If during an experiment zinc was found to be more reactive than lead or copper, zinc would be considered the strongest _____.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!