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
Lemur [1.5K]
3 years ago
9

Thermal energy lab report

Chemistry
1 answer:
Aleonysh [2.5K]3 years ago
4 0
Uhh add a picture so I can help
You might be interested in
Assume the recommended single dose of an antihistamine for a child weighing between 18-23 lbs is 0.75 teaspoons (tsp). if 1.00 t
blagie [28]

We are given that 1 teaspoon is equivalent to 5 mL, therefore 0.75 teaspoon is:

0.75 teaspoon * (5 mL / 1 teaspoon) = 3.75 mL

 

So the mass is density times volume:

mass = (12.5 mg/5 ml) * 3.75 mL

<span>mass = 9.375 mg</span>

7 0
3 years ago
Read 2 more answers
The reaction C 4 H 8 ( g ) ⟶ 2 C 2 H 4 ( g ) C4H8(g)⟶2C2H4(g) has an activation energy of 262 kJ / mol. 262 kJ/mol. At 600.0 K,
ludmilkaskok [199]

Answer: 4.3\times 10^{-13}s^{-1}

Explanation:

According to the Arrhenius equation,

K=A\times e^{\frac{-Ea}{RT}}

or,

\log (\frac{K_2}{K_1})=\frac{Ea}{2.303\times R}[\frac{1}{T_1}-\frac{1}{T_2}]

where,

K_1 = rate constant at 600.0K = 6.1\times 10^{-8}s^{-1}

K_2 = rate constant at 775.0 = ?

Ea = activation energy for the reaction = 262 kJ/mol = 262000J/mol

R = gas constant = 8.314 J/mole.K

T_1 = initial temperature = 600.0K

T_2 = final temperature = 775.0K

Now put all the given values in this formula, we get

\log (\frac{6.1\times 10^{-8}}{K_2})=\frac{262000}{2.303\times 8.314J/mole.K}[\frac{1}{600.0K}-\frac{1}{775.0K}]

\log (\frac{6.1\times 10^{-8}s^}{K_2})=5.150

(\frac{6.1\times 10^{-8}}{K_2})=141253.8

Therefore, the value of the rate constant at 775.0 K is 4.3\times 10^{-13}s^{-1}

5 0
3 years ago
Explosive volcanic eruptions will hurl: hot cinders volcanic bombs lava pebbles large rocks all of the above
andreev551 [17]
The answer is all of the above
8 0
3 years ago
Read 2 more answers
What are covalently bonded compounds that contain carbon called?
kogti [31]
They are called hydrocarbons
3 0
3 years ago
What is the empirical mass of SO2?<br> Answer using four significant figures.
timofeeve [1]
The atomic mass is 64.07
3 0
3 years ago
Read 2 more answers
Other questions:
  • What are 7 facts about Conduction?
    8·2 answers
  • Suppose a container holds 1000 hydrogen molecules (H2) and 1000 oxygen molecules (O2) that react to form water. How many water m
    8·1 answer
  • Determine the mass in grams of each of the following:
    8·1 answer
  • How do you perform calculations relating to isotopes. describe please
    7·1 answer
  • 50.0 mL of an HNo3 solution were titrated with 36.90 mL of a 0.100 M LiOH solution to reach the equivalence point. What is the m
    14·1 answer
  • What does phenolphthalein turn pink?
    15·1 answer
  • Convert each of the potentials. The silver–silver chloride and calomel reference electrodes are saturated with KCl,KCl, resultin
    9·1 answer
  • A home is heated by a system that uses sunlight to warm water in pipes. Which statement best describes this system?
    5·2 answers
  • If a piece of cadmium with a mass of 37.60 g and a temperature of 100.0 oC is dropped into 25.00 cc of water at 23.0 oC, what wi
    7·1 answer
  • A gas starts at a volume of 23 L and a pressure of 1.23 atm. What is the new pressure if you
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!