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
SashulF [63]
3 years ago
8

a student determined that it requires 106220 j of energy to vaporize 47g of water. is the student is right​

Chemistry
1 answer:
shusha [124]3 years ago
7 0
<h2>Answer:</h2>

He is right that the energy of vaporization of 47 g of water s 106222 j.

<h3>Explanation:</h3>

Enthalpy of vaporization or heat of vaporization is the amount of energy which is used to transform one mole of liquid into gas.

In case of water it is 40.65 KJ/mol. And 18 g of water is equal to one mole.

It means for vaporizing 18 g, 40.65 kJ energy is needed.

So for energy 47 g of water = 47/18 * 40.65 = 106.1 KJ

Hence the student is right about the energy of vaporization of 47 g of water.

You might be interested in
Calculate the number of moles of KOH in 6.70 mL of a 0.480 M KOH solution. (Enter your answer in scientific notation.)
andrew-mc [135]

Answer:

3.2×10^-3 mol

Explanation:

The equation for molarity is M= n/L. Where "M" is Molarity, "n" is the number of moles of solute, and "L" is the total liters in solution.

The question gives you the volume in mL, so to convert "mL" to "L" you need to divide by 1000. (6.70mL/ 1000L)= 0.0067L.

Now you can plug the numbers into the equation. 0.480M= n/ 0.0067L), multiply (0.480M×0.0067L)= 0.003216 mol. The scientific notation is 3.2×10^-3, 10^-3 because you move the decimal back three times and 3.2 because there are 2 sig figs.

5 0
3 years ago
A solution of HCl has a concentration of 1.20 x 10-2 M. What is the pH of this solution?
Westkost [7]
-log (1.2x10^-2) = 1.92 so C
3 0
3 years ago
Read 2 more answers
Please help i have untill tomrow 2SO2(g) + O2(g) ----&gt; 2SO3(g)
siniylev [52]

Answer:  mmmmmm asking for mrs.howard work I see lol good luck grace

Explanation:

8 0
3 years ago
A compound with a total of four carbons. A straight chain across the bottom of three carbons with all single bonds. There is a m
AleksandrR [38]
I know the answer. It is 2 straight chains. lLOL
6 0
4 years ago
Write ionic formulas for the following compounds:
lakkis [162]

You may find the chemical formulas for the ionic compounds below.

Explanation:

a. Calcium Bromide - CaBr₂

b. Potassium Phosphide  - K₃P

c. Iron (III) Oxide  - Fe₂O₃

d. Iron (II) Oxide  - FeO

e. Magnesium Hydroxide  - Mg(OH)₂

f. Nickel (III) Sulfate​ - Ni₂(SO₄)₃

Learn more about:

 chemical formulas of ionic compounds

brainly.com/question/11448164

brainly.com/question/12089352

brainly.com/question/7460355

#learnwithBrainly

6 0
3 years ago
Other questions:
  • Which of the following mixture types is characterized by the settling of particles
    5·2 answers
  • Which ion has the largest radius?<br>1) Br-<br>2) Cl-<br>3) F-<br>4) I-​
    12·1 answer
  • How are proteins, carbohydrates, and fats related to the discipline of chemistry?
    9·2 answers
  • Which of the following combinations represents an element with a net charge of +1 with a mass number of 75?a) 35 (o), 35 (+), 34
    6·1 answer
  • Given the law of conservation of energy, what happens when a 200°C iron bar is placed in thermal contact with a 30°C block of wo
    10·1 answer
  • Consider these phylogenetic trees. The first tree is based on physical characteristics. The second tree is based on structure, g
    9·2 answers
  • In which molecule is hydrogen bonding most important?
    13·1 answer
  • Which particle often described as having very little or no mass since the mass number does not change when you add more and more
    6·1 answer
  • Methane (CH4), is said to be the cleanest burning fossil fuel. When burned, it releases carbon dioxide gas and forms water. Usin
    13·1 answer
  • You produce 500 ml of a 0.001 m hclo4, which ionizes completely in water. What is the ph you should expect?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!