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
olga_2 [115]
3 years ago
11

If 1.320 moles of CH4 reacts completely with oxygen, how many grams of H2O can be formed

Chemistry
2 answers:
Alex17521 [72]3 years ago
8 0

Answer:

mass H2O = 47.56 g

Explanation:

balanced reation:

  • CH4 + 2O2 → CO2 + 2H2O

∴ moles CH4 = 1.320 mol

⇒ moles H2O = (1.320 mol CH4)×(2 mol H2O/mol CH4)

⇒ moles H2O = 2.64 mol H2O

∴ molar mass (mm) H2O = 18.015 g/mol

⇒ mass H2O = (2.64 mol H2O)×(18.015 g/mol)

⇒ mass H2O = 47.56 g

Rainbow [258]3 years ago
3 0

Answer:

47.5 g of water can be formed

Explanation:

This is the reaction:

CH₄  +  2O₂  →  CO₂ + 2H₂O

Methane combustion.

In this process 1 mol of methane react with 2 moles of oxygen to produce 2 moles of water and 1 mol of carbon dioxide.

As ratio is 1:2, I will produce the double of moles of water, with the moles of methane I have.

1.320 mol  .2 = 2.64 moles

Now, we can convert the moles to mass (mol . molar mass)

2.64 mol . 18g/mol = 47.5 g

You might be interested in
Equation of bhr and h2o
guajiro [1.7K]
HBr + H2O = H3O + Br2
7 0
3 years ago
After balancing the following reaction under acidic conditions, how many mole equivalents of water are required and on which sid
nordsb [41]

Answer:

d. 8 moles of H2O on the product side

Explanation:

Hello,

In this case, we need to balance the given redox reaction in acidic media as shown below:

MnO_4^{1-} (aq) + Cl^{1-} (aq) \rightarrow  Mn^{2+} (aq) + Cl_2 (g)\\\\(Mn^{7+}O^{2-}_4)^{1-} (aq) + Cl^{1-} (aq) \rightarrow  Mn^{2+} (aq) + Cl_2 (g)\\\\\\\\(Mn^{7+}O^{2-}_4)^{1-} (aq)+8H^++5e^- \rightarrow Mn^{2+}+4H_2O\\\\2Cl^{1-}\rightarrow Cl_2^0+2e^-\\\\2*[(Mn^{7+}O^{2-}_4)^{1-} (aq)+8H^++5e^- \rightarrow Mn^{2+}+4H_2O]\\\\5*[2Cl^{1-}\rightarrow Cl_2^0+2e^-]\\\\\\\\2(Mn^{7+}O^{2-}_4)^{1-} (aq)+16H^++10e^- \rightarrow 2Mn^{2+}+8H_2O\\\\10Cl^{1-}\rightarrow 5Cl_2^0+10e^-\\

Then, we add the half reactions:

2(Mn^{7+}O^{2-}_4)^{1-} (aq)+16H^++10Cl^{1-} \rightarrow 2Mn^{2+}+8H_2O+5Cl_2^0

Thereby, we can see d. 8 moles of H2O on the product side.

Best regards.

4 0
3 years ago
Through which of the following ways can heat be transferred?
SashulF [63]

Answer:

The correct option is:

A) by direct or indirect contact between objects at different temperatures

Explanation:

Heat can be transferred in three different methods:

Conduction, Convection and Radiation

Conduction is heat transfer through direct contact between substances at different temperatures.

Convection is the heat transfer which takes place through air currents.

Radiation is the heat transfer that does not require contact between two objects.

Hence, heat transfer can take place through direct or indirect contact between objects at different temperatures.

4 0
3 years ago
What feature of single nucleotides provides the energy needed for polymerization when nucleic acids are formed?
lukranit [14]
When the phosphate groups of the single nucleotides combine to form the backbone of the nucleic acid, energy is released. This energy is used for polymerization.
4 0
3 years ago
What would be the best flow rate of o2 for a patient with copd?
Step2247 [10]
When we say COPD, this means Chronic Obstructive Pulmonary Disorder. COPD includes a group of lung diseases which have progressed into a worse condition. One example of this is emphysema. In cases of COPD, they should be provided oxygen therapy and the best flow rate for patients with this disorder is <span>8-10 L/min, high-flow, via nasal prong. Hope this helps.</span>
4 0
3 years ago
Other questions:
  • Is the process of a liquid changing into a solid when cooling a chemical reaction?
    8·1 answer
  • Which sentence best describes how scientists plan out their experiments?
    11·2 answers
  • Determine which elements or compounds are missing from the following reaction equation: hydrogen + ________ → water
    7·1 answer
  • Calculate the volume of naoh solution that contains 0.72 g of a 8.0 % (m/v) naoh solution.
    6·1 answer
  • 1. A rock with a mass of 66.5g<br>occupies 23.0 cm. Density?​
    5·1 answer
  • A pump contains 1.5 L of air at 175 kPa. You draw back on the piston of the pump, expanding the volume until the pressure reads
    12·1 answer
  • 0.50 g of hydrogen chloride (HCl) is dissolved in water to make 4.0 L of solution. What is the pH of the resulting hydrochloric
    7·1 answer
  • True or False;<br> aa is faster moving lava than pahoehoe?
    11·1 answer
  • Answer in detail?? What precautions would you take to protect yourself from an earthquake, when you are at home and when you are
    5·2 answers
  • A sample of chlorine gas has a volume of 0.30 L at 273 K and 1 atm pressure. What temperature (in ∘C) would be required to incre
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!