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
White raven [17]
3 years ago
10

What is the percent composition of hydrogen (H) in benzene (C6H6)?

Chemistry
2 answers:
Scorpion4ik [409]3 years ago
8 0

Answer : The percent composition of hydrogen in benzene is, 7.69 %

Explanation: Given,

Molar mass of C = 12 g/mole

Molar mass of H = 1 g/mole

First we have to calculate the molar mass of benzene.

Molar mass of benzene(C_6H_6) = 6(12)+6(1)=78g/mole

Now we have to calculate the percent composition of hydrogen in benzene.

As we now that there are 6 number of carbon atoms and 6 number of hydrogen atoms.

The mass of hydrogen = 6\times 1=6g

Formula used :

\%\text{ Composition of hydrogen}=\frac{\text{Mass of hydrogen}}{\text{Molar mass of hydrogen}}\times 100

Now put all the given values in this formula, we get the percent composition of hydrogen in benzene.

\%\text{ Composition of hydrogen}=\frac{6}{78}\times 100=7.69\%

Therefore, the percent composition of hydrogen in benzene is, 7.69 %

PtichkaEL [24]3 years ago
6 0
That's the answer on that picture

You might be interested in
If a particular ore contains 58.5% calcium phosphate, what minimum mass of the ore must be processed to obtain 1.00 kg of phosph
alina1380 [7]
Calcium Phospate formula: Ca3(PO4)2

Atomic weight:
Ca = 40  ; P = 31 ; O = 16

Ca3  = 40 * 3 = 120
P = 31
O4 = 16 * 4 = 64
(PO4)2 = (31 + 64) * 2 = 95 * 2 = 190

Ca3(PO4)2 = 120 + 190 = 310 g/mol

31/310 = 10% P in the calcium phospate

1.00kg * 1000 g/kg = 1000 g of phosphorus.

1000 g / 10% = 10,000 g of calcium phosphate

10,000 g / 58.5% = 17,094 grams of ore.

The minimum mass of the ore should be 17,094 grams or 17.094 kg.
5 0
3 years ago
Read 2 more answers
True or false reactants are located on the right side of a chemical equation?
poizon [28]

Answer:

False

Explanation:

Reactants are starting materials and are hence located at the left hand side of the equation while products are located at the right hand side.

4 0
4 years ago
In an experiment to determine the effect of different brands of fertilizer on the rate of plant growth, what are 4 variables tha
kherson [118]

The variables to control in an experiment to determine the effect of different fertilizers on the rate of plant growth include soil composition, temperature, water, and light.

<h3>What are controlled variables?</h3>

The expression controlled variables makes reference to experimental conditions that must be equal or constant between experimental groups in order to obtain better comparisons when collecting results.

In conclusion, The variables to control in an experiment to determine the effect of different fertilizers on the rate of plant growth include soil composition, temperature, water, and light.

Learn more about controlled variables here:

brainly.com/question/17328868

#SPJ1

5 0
2 years ago
How many ML of 0.44 M HCl are needed to dissolve 9.83 g of BaCO3
Tanzania [10]

Answer:

nBACO3=m/M=9,83/197=0,05(mol)  ->nHCl=0,05.2/1=0,1(mol) =>VHCl=n/CM=0,1/0,44=0,227(lít)

Explanation:

6 0
3 years ago
Scientists saw how well people responded to animals and imagined ___________ that these interactions might be helpful in some ty
sukhopar [10]

For most of the last 50 years, technology knew its place. We all spent a lot of time with technology—we drove to work, flew on airplanes, used telephones and computers, and cooked with microwaves. But even five years ago, technology seemed external, a servant. These days, what’s so striking is not only technology’s ubiquity but also its intimacy.

On the Internet, people create imaginary identities in virtual worlds and spend hours playing out parallel lives. Children bond with artificial pets that ask for their care and affection. A new generation contemplates a life of wearable computing, finding it natural to think of their eyeglasses as screen monitors, their bodies as elements of cyborg selves. Filmmakers reflect our anxieties about these developments, present and imminent. In Wim Wenders’s Until the End of the World, human beings become addicted to a technology that shows video images of their dreams. In The Matrix, the Wachowski brothers paint a future in which people are plugged into a virtual reality game. In Steven Spielberg’s AI: Artificial Intelligence, a woman struggles with her feelings for David, a robot child who has been programmed to love her.

Today, we are not yet faced with humanoid robots that demand our affection or with parallel universes as developed as the Matrix. Yet we’re increasingly preoccupied with the virtual realities we now experience. People in chat rooms blur the boundaries between their on-line and off-line lives, and there is every indication that the future will include robots that seem to express feelings and moods. What will it mean to people when their primary daily companion is a robotic dog? Or to a hospital patient when her health care attendant is built in the form of a robot nurse? Both as consumers and as businesspeople, we need to take a closer look at the psychological effects of the technologies we’re using today and of the innovations just around the corner.

Indeed, the smartest people in the field of technology are already doing just that. MIT and Cal Tech, providers of much of the intellectual capital for today’s high-tech business, have been turning to research that examines what technology does to us as well as what it does for us. To probe these questions further, HBR senior editor Diane L. Coutu met with Sherry Turkle, the Abby Rockefeller Mauzé Professor in the Program in Science, Technology, and Society at MIT. Turkle is widely considered one of the most distinguished scholars in the area of how technology influences human identity.

Few people are as well qualified as Turkle to understand what happens when mind meets machine. Trained as a sociologist and psychologist, she has spent more than 20 years closely observing how people interact with and relate to computers and other high-tech products. The author of two groundbreaking books on people’s relationship to computers—The Second Self: Computers and the Human Spirit and Life on the Screen: Identity in the Age of the Internet—Turkle is currently working on the third book, with the working title Intimate Machines, in what she calls her “computational trilogy.” At her home in Boston, she spoke with Coutu about the psychological dynamics between people and technology in an age when technology is increasingly redefining what it means to be human.

You’re at the frontier of research being done on computers and their effects on society. What has changed in the past few decades?

To be in computing in 1980, you had to be a computer scientist. But if you’re an architect now, you’re in computing. Physicians are in computing. Businesspeople are certainly in computing. In a way, we’re all in computing; that’s just inevitable. And this means that the power of the computer—with its gifts of simulation and visualization—to change our habits of thought extends across the culture.



5 0
4 years ago
Read 2 more answers
Other questions:
  • How much salt is in 300 g of a 3.5 % solution of salt water?
    15·1 answer
  • For the reaction
    8·1 answer
  • What is necessary for the transport of oxygen by an erythrocyte?
    9·1 answer
  • Tissue engineering is beneficial for which of the following reasons?
    8·1 answer
  • Which has the smallest enthalpy of fusion? a. HCl b.Li2O c. MgO d. H2O Which has the highest normal boiling point? a.CH4 b. NH3
    14·1 answer
  • Is it worth it? In other words, will the benefits we receive from an action be worth the costs? The process of weighing these de
    13·1 answer
  • Which of the following is a physical change? A. corrosion B. explosion C. evaporation D. food spoilage
    6·2 answers
  • Mallory combines two chemicals and notices that each chemical retains its original properties. What did Mallory form?
    13·1 answer
  • 6CO2, 6H2O, and energy are the result of aerobic respiration.
    13·2 answers
  • How many molecules of ammonia are produced from the reaction of
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!