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
ollegr [7]
3 years ago
13

Can someone help me with this please!

Chemistry
1 answer:
Kryger [21]3 years ago
8 0
<span>Step 1: Convert the given amount to moles, by dividing the given amount by the molecular weight of the compound. 

5 g C3H8 (1 mol / 44 g C3H8) = 0.114 mol C3H8 

Step 2: Find the mole ratio between the given and the desired target (in this case water). The mole ratio between C3H8 and water is 1:4, that is, you can make 4 times as much water from a one C3H8 (assuming that it isn't the limiting reactant). 

0.114 mol C3H8 (4 moles H2O / 1 mol C3H8) = 0.456 mol H2O 

Step 3: Reconvert back to grams by multiplying by the molecular weight of the new target (water). 

0.456 mol H2O (18 g / 1 mol H2O) = 8.208 g Water. Hope this helped! :) </span><span />
You might be interested in
I need help on this asap
dlinn [17]
1.hydrogen
2.carbon
3.argon
4.titanium
5.cesium
6 0
3 years ago
Read 2 more answers
If you weighed out 0.38 g of calcium and reacted it with an excess of hcl, how many moles of h2(g) would you expect to produce?
Hitman42 [59]
Answer is: 0,0095 mol of hydrogen gas will be produced in reaction.
Chemical reaction: Ca + 2HCl → CaCl₂ + H₂.
m(Ca) = 0,38 g.
n(H₂) = ?
n(Ca) = m(Ca) ÷ M(Ca).
n(Ca) = 0,38 g ÷ 40 g/mol
n(Ca) = 0,0095 mol.
from reaction: n(Ca) : n(H₂) = 1 : 1.
n(H₂) = n(Ca) = 0,0095 mol.
n - amount of substance.
4 0
3 years ago
Write the symbol for every chemical element that has an atomic number less than 13 and atomic mass greater than 19.3 u
emmainna [20.7K]

Answer:

The symbol of each element is, Ne, Na, Mg, and Al.

Explanation:

Below is the list of elements that has an atomic mass of less than 19.3 u.

The atomic mass of Neon is 20.1797 u and the atomic number is 10.

The atomic mass of Sodium is 22.989769 u and the atomic number is 11.

The atomic mass of Magnesium is 24.305 u and the atomic number is 12.

The atomic mass of Aluminium is 26.981539 u and the atomic number is 13.

Here, the symbol of each element is, Ne, Na, Mg, and Al.

3 0
3 years ago
Nnbvcvbnm,.,mnbvcxcvbjklkjhvbn
pav-90 [236]
This are letters of the alphabet some are periods and some are commas also they do not form any words or meaning
hope this helped ;)
3 0
2 years ago
What is the chemical name of this compound? Na2S:
ahrayia [7]

Answer:

Sodium Sulfuret

7 0
2 years ago
Other questions:
  • According to the VSEPR model, the progressive decrease in the bond angles in the series of molecules CH₄, NH₃, and H₂O is best a
    11·1 answer
  • A series of five calibration standards 25, 50, 75 and 100 mg/L Potassium is required to be made from a 1000mg/L Potassium standa
    11·1 answer
  • Two states of matter are described below. State X: Particles are ions that are far apart State Y: Particles are molecules that a
    5·1 answer
  • Are these right? Please help
    11·1 answer
  • A solution of cough syrup contains 5.00% active ingredient by volume. If the total volume of the bottle is 44.0 mL , how many mi
    15·1 answer
  • Match the chemical Equation with his correct type
    5·1 answer
  • Help please and if you say for points I will report you :)
    12·2 answers
  • HELP ASAP!!!
    11·2 answers
  • Assume that the variables x and y are directly related. If k = 8, what is the value for each of the following polnts? Be sure
    14·1 answer
  • Balanced or Unbalanced<br><br> CH4+4Ci2=CCi4+4HCi
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!