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
Rasek [7]
3 years ago
11

The heat of vaporization for liquid zinc is 1.76 kj/g. How much heat is needed to boil 11.2 g of liquid zinc already at its boil

ing point?
Chemistry
1 answer:
sladkih [1.3K]3 years ago
6 0
<h3>Answer:</h3>

= 19.712 kJoules

<h3>Explanation:</h3>
  • Heat of vaporization refers to the amount of heat required to change a unit mass of a substance from liquid to gaseous state without change in temperature.

To calculate the amount of heat, we use,

Amount of heat = Mass × Heat of vaporization

Q = m×Lv

Given;

Mass of liquid Zinc = 11.2 g

Lv of liquid Zinc = 1.76 kJ/g

Therefore;

Q = 11.2 g × 1.76 kJ/g

  = 19.712 kJ

Thus, the amount of heat needed to boil 11.2 g of zinc is 19.712 kilo-joules.

You might be interested in
Which reaction has the highest atom economy for the production of C02?​
In-s [12.5K]

The highest atom economy

2CO + O₂ ⇒ 2CO₂

<h3>Further explanation</h3>

Given

The reaction for the production of CO₂

Required

The highest atom economy

Solution

In reactions, there are sometimes unwanted products that can be said to be a by-product or a waste product. Meanwhile, the desired product can be said to be a useful product, which can be shown as the atom economy

of the reaction

the higher the atomic economy value of a reaction, the smaller the waste/ byproducts produced, so that less energy is wasted

The general formula:

Atom economy = (mass of useful product : mass of all reactants/products) x 100

<em>or </em>

Atom economy = (total formula masses of useful product : total formula masses of all reactants/products) x 100

So a reaction that only produces one product will have the highest atomic value, namely the reaction in option C

4 0
3 years ago
The arrangement of things in the order that they occurred.
RoseWind [281]
The answer is B: chronological order
4 0
3 years ago
Read 2 more answers
Please help! Asap! :)
timama [110]

The first one is true.

The second one is false.

4 0
3 years ago
Read 2 more answers
To balance a chemical equation, it may be necessary to adjust the
lana66690 [7]

Answer:

A. Coefficients

Explanation:

that's the number in front of the molecules

7 0
3 years ago
Which is the larger atom As or P
sashaice [31]

Answer:

I think that As is larger

6 0
3 years ago
Other questions:
  • Which of the following elements has properties different than the rest?
    11·1 answer
  • How is chemical energy useful? Give three examples.
    5·1 answer
  • Duncan takes a break from studying and goes to the gym to swim laps. If swimming burns 705 calcal per hour, how many kilojoules
    12·1 answer
  • A student knows that hydrogen (H) atoms and oxygen (O) atoms combine to form water (H2O). The student correctly predicts that hy
    5·1 answer
  • Explain how the rock cycle works.
    10·1 answer
  • If 61.5 moles of an ideal gas occupies 97.5 liters at 473 K, what is the pressure of the gas, in mmHg?
    15·1 answer
  • Which of the following is NOT an example of proxy data?
    11·1 answer
  • Gas occupies 100.0 mL at a pressure of 780 mm Hg. What is the volume of the gas
    9·1 answer
  • What are the names of the elements symbolized by Ba , Na , and Fe , respectively? Spelling counts!
    7·1 answer
  • “Kids and grown-ups love it so, the happy world of HARIBO!” Who does not like the dark brown liquorice and its lovely taste?! Ta
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!