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
Zanzabum
2 years ago
5

How many grams of O2 are needed to combust 20.0 g of C3Hg?

Chemistry
1 answer:
xxMikexx [17]2 years ago
6 0
Need tge points love u tho gud luck
You might be interested in
When you walk, you push against the floor, and _________.
Taya2010 [7]
When you walk, you push against the floor, and t<span>he floor pushes back against you.

Answer: B. The floor pushes back agaisnt you. 

Good luck with your studies, I hope this helps~!
</span>
7 0
2 years ago
The Bantu were experts in this form of metallurgy. gold steel iron copper
son4ous [18]
they're experts in iron metallurgy

The bantu was originated from the southern part of Africa ( round republic of Congo) , and has been the expert of utilizing iron among the ancient tribe

Mostly they use it for their Agricultural  system ( such as their Irrigation system, for their agricultural tools, etc)
<span />
4 0
2 years ago
Read 2 more answers
What is the molar mass in g/mol for In2S3?
valentinak56 [21]

Answer:

325.82 g/mol

Explanation:

3 0
3 years ago
If 1.02 g of nickel reacted with 750. mL of 0.112 M hydrobromic acid, how much of each will be present at the end of the reactio
kati45 [8]

Answer:

35.1% is percent yield

Explanation:

<em>Full question: Assume no volume change.  If you formed 0.0910 atm of gas, what is the percent yield?</em>

<em />

The reaction that is occurring is:

Ni + 3HBr → NiBr₃ + 3/2H₂(g)

First, we will determine moles of Ni and HBr to determine limiting reactant and theoretical yield

Using ideal gas law, we can determine the moles of hydrogen formed. Thus, we can find percent yield:

<em>Moles Ni (Molar mass: 58.69g/mol):</em>

1.02g * (1mol / 58.69g) = 0.01738moles Ni

<em>Moles HBr:</em>

0.750L * (0.112mol/L) = 0.084 moles of HBr.

For a complete reaction of the 0.084 moles of HBr you need:

0.084mol HBr * (1 mole Ni / 3 moles HBr) = 0.028 moles of Ni.

As there are just 0.01738 moles of Ni, the Ni is limiting reactant. Assuming a theoretical yield, moles of H₂ produced are:

0.01738moles Ni * (3/2 H₂ / 1 mol Ni) = 0.02607 moles H₂

Now, moles of H₂ produced are:

PV = nRT

PV/RT = n

<em>Where P is pressure (0.0910atm)</em>

<em>V is volume (2.50L)</em>

<em>R is gas constant (0.082atmL/molK)</em>

<em>T is absolute temperature in Kelvin (30°C + 273.15 = 303.15K)</em>

<em>And n are moles</em>

PV/RT = n

0.0910atm*2.50L/0.082atmL/molK*303.15K = n

0.00915 moles = n

<em />

And percent yield (Produced moles / Theoretical moles * 100) is:

0.00915 moles / 0.02607moles =

<h3>35.1% is percent yield</h3>
8 0
2 years ago
In at least three sentences, explain three disadvantages associated with hydrogen fuel use.
Dmitry_Shevchenko [17]

Here are some disadvantages, is that nitrogen dioxide is a toxic gas and it can still be harmful when ingested by human, also critics of hydrogen fuel cells argue that although these cells do not emit carbon after burning, they give out nitrogen dioxide and other emissions.

Hope this helps

7 0
3 years ago
Other questions:
  • The smallest unit that can exist as an element and still have the properties of that element is a(n):
    8·2 answers
  • When naming a binary compound which element is named first metal or nonmetal
    5·1 answer
  • Mnemonic device for remembering the four layers of the atmosphere?
    11·2 answers
  • What is the average rate of the reaction between 10 and 20 s?
    11·1 answer
  • Hydrogen cyanide, HCN, is prepared from ammonia, air, and natural gas (CH4) by the following process: Hydrogen cyanide is used t
    10·1 answer
  • 3. ¿Cuál de las siguientes operaciones es correcta para calcular el número de moles de hidrógeno necesarios para producir 6 mole
    14·1 answer
  • How many grams of NaCl are needed to make 1.00 liter of a 3.00 M NaCl solution?
    5·1 answer
  • Is there a relationship between the locations of earthquake, volcanoes, and plate boundaries? If so, describe the relationship.
    12·1 answer
  • Given the reaction: HNO2 (aq) &lt;-&gt; H+ (aq) + NO2- (aq); write the ionization constant for the reaction.
    6·1 answer
  • Application of using in chemistry ?<br>please answer me​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!