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
worty [1.4K]
3 years ago
11

If you have 110.0 grams of an unknown compound that contains 12.3 grams of hydrogen, what is the percent by mass of hydrogen in

the compound
Chemistry
2 answers:
Vladimir [108]3 years ago
8 0
All you have to do is a simple division "parts over the whole"

12.3 grams H/ 110 grams compound x 100= 11.2%
tankabanditka [31]3 years ago
3 0

Answer : The percent by mass of hydrogen in the compound is, 11.18 %

Explanation : Given,

Mass of unknown compound = 110.0 g

Mass of hydrogen = 12.3 g

Now we have to calculate the percent by mass of hydrogen in the compound.

\text{Mass percent of hydrogen}=\frac{\text{Mass of hydrogen}}{\text{Total mass of unknown compound}}\times 100

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

\text{Mass percent of hydrogen}=\frac{12.3g}{110g}\times 100

\text{Mass percent of hydrogen}=11.18\%

Therefore, the percent by mass of hydrogen in the compound is, 11.18 %

You might be interested in
How does prairie grasses protect soil
jeyben [28]

Prarie Grass Protects soil ( And this is just what I think, so I am sorry if I am wrong)

But I think that the grass is there so that the dirt doesn't fly away.

4 0
3 years ago
Predict: In each "Climate type" box, Highlight the condition you think will lead to the fastest weathering for the given weather
yanalaym [24]

Answer:

Frost Wedging - Hot and dry

Clay Formation - Cold and Wet

Dissolving - Cold, and dry

Explanation:

The frost wedging happen when the climatic condition is hot and dry. The dry weather compensates the heat and the rock wedging happens quickly. For clay formation the weather has to be cold and wet. The cold weather will make the sand indulge with rock particles resulting in the clay formation.

6 0
3 years ago
What is the volume of 0.80 grams of O2 gas at STP? (5 points) Group of answer choices 0.59 liters 0.56 liters 0.50 liters 0.47 l
Anarel [89]

Answer:

0.56 liters

Explanation:

First we <u>convert 0.80 grams of O₂ into moles</u>, using its molar mass:

  • 0.80 g ÷ 32 g/mol = 0.025 mol

At STP, 1 mol of any given mass occupies 22.4 L. With that information in mind we <u>calculate the volume that 0.025 moles of O₂ gas would occupy</u>:

  • 0.025 mol * 22.4 L/mol = 0.56 L

Thus the answer is 0.56 liters.

3 0
3 years ago
CH3-CH2-CH=CH-CH=CH2
o-na [289]

Answer:

Hydration (of an alkene)

Mechanism : Electrophilic addition.

8 0
3 years ago
Please answer asap need it by Wednesday morning
yarga [219]
The answer to this problem is quite simple, it’s 9
4 0
3 years ago
Other questions:
  • If an electrostatically charged object is placed near other objects, which of the following will occur? Select all that apply. I
    11·2 answers
  • -, or stirring, of the solute in the solvent
    7·1 answer
  • Rank these systems in order of decreasing entropy. 1 = Greatest entropy and 7 = Least entropy. Group of answer choices 1 mol of
    9·1 answer
  • Consider a hexagonal close-packed unit cell as shown here.
    9·1 answer
  • In which of the following compounds is the octet expanded to include 12 electrons?
    5·1 answer
  • What would be the resulting molarity of a solution made by dissolving 17.8 grams of LiF in enough water to make a 915-milliliter
    5·1 answer
  • How to balance that equation
    15·1 answer
  • Which ion can be both an oxidizing agent and reducing agent?
    9·1 answer
  • What is matter?<br> 12 points..
    10·1 answer
  • What is the definition of the molar mass of an element or compound?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!