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
Wittaler [7]
4 years ago
10

A hot cup of coffee (treat it like water) rests on a windowsill. If it cools off from 90 C

Chemistry
2 answers:
zavuch27 [327]4 years ago
6 0

Answer:

823.84~mL

Explanation:

We have to use the <u>heat equation</u> for this problem:

Q~=~m*Cp~*ΔT

Where:

Q=heat=103310 J

m = mass = <u>Unknow</u>

Cp=specific heat (of water)=4.18 \frac{J}{g^{\circ}C}

ΔT= 30 ºC

Now, we have to <u>solve for "m"</u>:

m=\frac{Q}{Cp*deltaT}=\frac{103310~J}{4.18\frac{J}{g^{\circ}C}*30^{\circ}C}=823.84~g

Finally, we have to <u>convert</u> from grams to mL using the <u>density</u> value 1~\frac{g}{mL}.

823.84~g~\frac{1~mL}{1~g}=823.84~mL

kakasveta [241]4 years ago
5 0

Answer:

1721.8ml

Explanation:

90-30=60

103,310÷60=1721.83333333

1721.83333333= 1721.8

You might be interested in
A phase diagram for elemental carbon is shown below.
olga55 [171]

Answer:

C.) lowering the pressure

Explanation:

As you can see, the liquid and gas phases are stacked right on top of each other. Since temperature is on the x-axis, this means that these phases exist at the same temperature (disregarding any other variables). This means that changing the temperature would not change the liquid phase to the gas phase.

If we want to get the sample into the gas phase, we need to manipulate the sample based on the y-axis. To lower the sample into the gas phase, we need to lower the pressure, which is the variable on the y-axis. This will work because pressure decreases as you go down the y-axis.

4 0
2 years ago
Places the following layers in sequence from the outermost layer to the innermost layer ?
Elena L [17]
Crust, Mantle, Outer core, Inner Core
8 0
3 years ago
Read 2 more answers
Sonar stands for “sound navigation and ranging.” What assumption was proved wrong after the invention of sonar?
Vesna [10]

Answer:

B. The ocean floor is featureless.

Explanation:

4 0
3 years ago
What weight (in grams) of h2so4 would be needed to make 750.0 ml of 2.00 m solution?
frosja888 [35]

Answer:

I think the answer should be 147

Explanation:

8 0
2 years ago
When oxygen reacts with hydrogen, it has the capacity to release 29 kilojoules of energy. Inside a fuel cell, oxygen reacts with
Vanyuwa [196]

Answer:

79

Explanation:

7 0
3 years ago
Other questions:
  • Which of the following explains how electricity flows? Protons flow from the positive end of a source towards the negative end.E
    5·1 answer
  • How is the half-life of a radioactive material useful for radioactive dating?
    5·1 answer
  • Which season will the northern hemisphere experience if the axis of Earth is tilted away from the sun?
    7·1 answer
  • Q4: The average heat evolved by the oxidation of food in an average adult per hour per kilogram of body weight is 7.20 ୩୎ ୩୥ ୦୰.
    7·1 answer
  • Which of the following provides the best description of the function of genes?
    9·1 answer
  • An organism had 1,000 grams of carbon-14 (a radioactive form of carbon) in it when it died. How much remains after five half-liv
    13·1 answer
  • A student heats up a metal and finds that its mass increases. The students says “this is because heat has been added.” Explain w
    7·1 answer
  • Can someone help me please. This is the last day
    10·2 answers
  • What is the ability to do work defined as?
    7·1 answer
  • Which of the following is one way to prevent air pollution ill give brainiest if you don't copy the answers from the first perso
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!