Questions LLC
Login
or
Sign Up
Ask a New Question
Science
Chemistry
A sample if liquid water (30g)heats up from an initial temperature of 20C to 78C. How much energy did it take in?
1 answer
q = mass water x specific heat water x delta T.
You can
ask a new question
or
answer this question
.
Similar Questions
A 50 g sample of an unknown metal is heated to 90.0C. It is placed in a perfectly insulated container along with 100 g of water
Top answer:
The sum is 0.64
Read more.
A 50 g sample of an unknown metal is heated to 90.0C. It is placed in a perfectly insulated container along with 100 g of water
Top answer:
see other post.
Read more.
1050 calories of heat from soybean oil was applied to a 250 gram sample of liquid water with an initial temperature of 25
Top answer:
To determine the final temperature of the water and the change in temperature, we can use the
Read more.
A sample of water is heated from 35 C to 45 C with 1600 joules. What is the mass of the sample?
A 15-gram sample of water has an
Top answer:
You can work all of these with one of two or three formulas. 1. q = mass sample x specific heat
Read more.
the initial temperature of a 1l sample of gas is 20c. The pressure is decreased from 720mmhg to 36mmhg and the volume increases
Top answer:
To find the final temperature of the gas, we can use the combined gas law equation, which relates
Read more.
Charles was given an unknown sample to place inside a coffee cup calorimeter. He measured the initial temperature of the water,
Top answer:
A. The reaction caused energy to be released into the surrounding water. B. The reaction absorbed
Read more.
When 112 g of water at a temperature of 22.5°C is mixed with 65.1 g of water at an unknown temperature, the final temperature
Top answer:
loss heat hot water + gain of heat by cold water = 0 [Mass1H2O x specific heat x (Tfinal-Tinitial)]
Read more.
A container of hot liquid is placed in a freezer that is kept at a constant temperature of 10°F. The initial temperature of the
Top answer:
Have you learned about Newton's Law of Cooling?
Read more.
A container of hot liquid is placed in a freezer that is kept at a constant temperature of 10°F. The initial temperature of the
Top answer:
T = Ts + (To-Ts)e^-(kt) Ts = T surrounding = 10 To = initial T = 160 60 = 10 +(150)e^-(5k) e^-(5k) =
Read more.
A student is given a sample of an unknown liquid to test in the laboratory. The student thinks that the liquid is water. Which
Top answer:
what do you think and why?
Read more.
Related Questions
If the temperature of a 500.0-g sample of liquid water is raised 2.00c how much heat is absorbed by the water?The specific heat
You take 326 g of a solid (melting point = 57.6oC, enthalpy of fusion = 346 J/g) and let it melt in 757
g of water, and the water
in a calorimeter can(water equivalent=40g)are 200g of water and 50g of ice,all at 0 degreea celcius.into these poured 30g of
KCl(s) → K+(aq) + Cl‾ (aq)
Solid KCl dissolves as shown in the above equation. A 6.60 g sample of KCl was dissolved in 42.3 g
Questions
How does the heat capacity of water contribute to the changes in temperature of coastal areas? Water cools down rapidly
Sample Temperature (°C)
1 98.2 2 46.0 3 100.6 4 31.4 A student records the temperature of several water samples as shown in the
A column of liquid is found to expand linearly on heating. Assume the column rises 5.25 cm for a 10.0 oF rise in temperature. If
The vapor pressure of liquid chloroform, CHCl3, is 100. mm Hg at 283 K. A 0.198 g sample of liquid CHCl3 is placed in a closed,
How does the heat capacity of water contribute to the changes in temperature of coastal areas?(1 point)
Responses Water cools
A 50 gram sample of liquid water at 25 degrees C is mixed with 29 grams of water at 45 degrees C. The final temperature of the