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
11111nata11111 [884]
3 years ago
9

"46.7 g of water at 80.6 oC is added to a calorimeter that contains 45.33 g of water at 40.6 oC. If the final temperature of the

system is 59.4 oC, what is the calorimeter constant (C calorimeter)
Chemistry
1 answer:
soldier1979 [14.2K]3 years ago
6 0

<u>Answer:</u> The specific heat of calorimeter is 30.68 J/g°C

<u>Explanation:</u>

When hot water is added to the calorimeter, the amount of heat released by the hot water will be equal to the amount of heat absorbed by cold water and calorimeter.

Heat_{\text{absorbed}}=Heat_{\text{released}}

The equation used to calculate heat released or absorbed follows:

Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})

m_1\times c_1\times (T_{final}-T_1)=-[(m_2\times c_2)+c_3](T_{final}-T_2)       ......(1)

where,

q = heat absorbed or released

m_1 = mass of hot water = 46.7 g

m_2 = mass of cold water = 45.33 g

T_{final} = final temperature = 59.4°C

T_1 = initial temperature of hot water = 80.6°C

T_2 = initial temperature of cold water = 40.6°C

c_1 = specific heat of hot water = 4.184 J/g°C

c_2 = specific heat of cold water = 4.184 J/g°C

c_3 = specific heat of calorimeter = ? J/g°C

Putting values in equation 1, we get:

46.7\times 4.184\times (59.4-80.6)=-[(45.33\times 4.184)+c_3](59.4-40.6)

c_3=30.68J/g^oC

Hence, the specific heat of calorimeter is 30.68 J/g°C

You might be interested in
How many centimeters are in 5 miles? Hint: 1 miles = 5280 feet
KatRina [158]
804,672 centimeters ❤️‍
7 0
2 years ago
Most earthquakes occur along fractures in the Earth's crust called faults. Most faults occur along the edges of A) continents. B
Ahat [919]
Hey there!

The answer is C. Tectonic plates, with the most famous of earthquakes being a plate called the "Ring of Fire"  


Hopes this Helps u :D
6 0
4 years ago
Read 2 more answers
Calculate the freezing point of a solution made from 220g of octane (C Hua), molar mass = 114,0 gmol dissolved in 1480 g of benz
stiv31 [10]

Answer: Freezing point of a solution will be -1.16^0C

Explanation:

Depression in freezing point is given by:

\Delta T_f=i\times K_f\times m

\Delta T_f=T_f^0-T_f=(5.50-T_f)^0C = Depression in freezing point

i= vant hoff factor = 1 (for non electrolyte)

K_f = freezing point constant = 5.12^0C/m

m= molality

\Delta T_f=i\times K_f\times \frac{\text{mass of solute}}{\text{molar mass of solute}\times \text{weight of solvent in kg}}

Weight of solvent (benzene)= 1480 g =1.48 kg

Molar mass of solute (octane) = 114.0 g/mol

Mass of solute (octane) = 220 g

(5.50-T_f)^0C=1\times 5.12\times \frac{220g}{114.0 g/mol\times 1.48kg}

(5.50-T_f)^0C=6.68

T_f=-1.16^0C

Thus the freezing point of a solution will be -1.16^0C

3 0
3 years ago
Please help i'll mark the brainlest
asambeis [7]

Answer:

3

Explanation:

3 because it's the most scientific and specific, and it shows the independent and dependant variables

6 0
3 years ago
Read 2 more answers
During photosynthesis, what gas do plants release
ELEN [110]
During photosynthesis, what gas do plants release - oxygen
5 0
2 years ago
Other questions:
  • How many moles in 6.92 L of SO2 gas at STP?
    8·1 answer
  • Given that the vapor pressure of water is 17.54 torr at 20 °c, calculate the vapor-pressure lowering of aqueous solutions that a
    6·1 answer
  • The elements least likely to form a bond are found in group
    5·2 answers
  • A dark grey rock has a mass of 80 grams. When dropped in water, it makes the water level rise from 70 mL to 90 mL. What is the d
    6·2 answers
  • What is the total anion concentration (in meq/l) of a solution that contains 6.0 meq/lna+ , 11.0 meq/lca2+ , and 3.0 meq/lli+ ?
    15·2 answers
  • The melting points for the second series transition elements increase from 1526˚C for yttrium to 2623˚C for molybdenum and then
    12·1 answer
  • The force resulting from oppositely charged poles is ...
    14·1 answer
  • Please help , I don't know about big bang I'm sorry
    10·1 answer
  • Using the solubility curves, approximately how many grams of NaNO3 can be dissolved in 100. grams of water at 80 °C?
    6·2 answers
  • Look at the map and follow the paths of the Colorado, Gila, and Salt Rivers. Then, answer the following questions
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!