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
eduard
3 years ago
14

Can someone help me with this question please? I don’t understand molarity

Chemistry
1 answer:
lozanna [386]3 years ago
8 0

Answer:

4.7L

Explanation:

You might be interested in
Calculate the number of grams of CO that can react with 0.400 kg of Fe2O3.
aleksandr82 [10.1K]

Answer:

mass of CO = 210.42 g

mass in three significant figures = 210. g

Explanation:

Given data:

mass of Fe2O3 = 0.400 Kg

mass of CO= ?

Solution:

chemical equation:

Fe2O3 + 3CO → 2Fe + 3CO2

Now we will calculate the molar mass of  Fe2O3 and CO.

Molar mass of  Fe2O3 = (55.845 × 2) + (16 × 3) = 159.69 g/mol

Molar mass of CO = 12+ 16 = 28 g/mol

now we will convert the kg of Fe2O3 in g.

mass of Fe2O3 = 0.400 kg × 1000 = 400 g

number of moles of Fe2O3  = 400 g/ 159.69 g/mol = 2.505 mol

mass of CO = moles of Fe2O3 × 3( molar mass of CO)

mass of CO = 2.505 mol × 84 g/mol

mass of CO = 210.42 g

mass in three significant figures = 210. g

5 0
3 years ago
Read 2 more answers
HELPP ME PLEASE!! What would be the density of a 40 g object that displaces 10 ml of water?
Snezhnost [94]

Answer:

<h2>The answer is 4.0 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question

mass = 40 g

volume = 10 mL

The density of the object is

density =  \frac{40}{10}  = 4 \\

We have the final answer as

<h3>4.0 g/mL</h3>

Hope this helps you

5 0
3 years ago
Aluminum reacts with a certain nonmetallic element to form a compound with the general formula AlX. Element X is a diatomic gas
Sergio039 [100]

Answer:

It's nitrogen

Explanation:

cuz it has valence 3 and  a diatomic gas at room temperature

5 0
2 years ago
SOMEONE HELP PLEASE 60 POINTS!!!!!!! IM TIMED TOO SO PLS
Sergeu [11.5K]

Explanation:

ooohhhh it's free points,,,thank you mwahhh hahahahahaha jokeee

sorry I don't have any ideas

4 0
3 years ago
Helpppppppppppppppppppppp
Bess [88]
The best description is A
3 0
3 years ago
Other questions:
  • Help ASAP! I'm kind of stuck on what you are supposed to put for theoretical / predicted yield and what is the actual yield for
    8·1 answer
  • Two compounds are mixed. Which statement is true if there is only a physical reaction? A. The color changes. B. Heat is release
    11·2 answers
  • Rank the following bonds in order of decreasing bond length, based on periodic trends, starting with the longest bond at the top
    14·1 answer
  • Ability to conduct electricity
    14·1 answer
  • Please a little help in this I will really appreciate it
    8·1 answer
  • Magbigay ng 3 halimbawa ng lipunang sibil. Paki sagot ng wasto plies &gt;_&lt;​
    8·1 answer
  • How many moles are in 297 g of NH3?
    12·1 answer
  • The form in which the chemical energy is stored in cells during photosynthesis
    9·1 answer
  • What quantity is the same among atoms of the same element?
    5·1 answer
  • What is the percent of aluminum found in Al2SO4
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!