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
Sophie [7]
3 years ago
10

*Will give Brainliest* What is the average atomic mass of one molecule of methane, which has one 12C atom and four 1H atoms?

Chemistry
1 answer:
Nesterboy [21]3 years ago
5 0

Answer:

The atomic mass of methane (CH4)is 12 amu for the carbon plus 4 x 1 amu for the four hydrogens, for a total of 16 amu. Therefore, the molar mass of methane is 16g.

You might be interested in
What is the maximum mass, in kilograms, of (NH4)2U2O7 that can be formed from the reaction of 100 kg of water and 100 kg of ammo
V125BC [204]

Mass of (NH₄)₂U₂O₇ : 410.05 kg

<h3>Further explanation</h3>

Reaction

2UO₂SO₄ + 6NH₃ + 3H₂O → (NH₄)₂U₂O₇ + 2(NH₄)₂SO₄

MW UO₂SO₄ :  366.091

MW (NH₄)₂U₂O₇ : 624.131

MW H₂O :  18.0153

MW NH₃ : 17.0306

mol of 100 kg water :

\tt \dfrac{100}{18.0153}=5.55

mol of 100 kg ammonia :

\tt \dfrac{100}{17.036}=5.87

mol of UO₂SO₄ :

\tt \dfrac{481}{366.091}=1.314

Limiting reactants : smallest mol ratio(mol : coefficient)

\tt \dfrac{5.55}{3}\div \dfrac{5.87}{6}\div \dfrac{1.314}{2}=1.85\div 0.98\div 0.657

UO₂SO₄ ⇒ Limiting reactants

mol (NH₄)₂U₂O₇ : mol UO₂SO₄

\tt \dfrac{1}{2}\times 1.314=0.657

mass (NH₄)₂U₂O₇

\tt 0.657\times 624.131=410.05

5 0
3 years ago
Which of the following observations indicates that an atom has neutrons?
olganol [36]

Answer:

The correct answer is C: A radiation consisting of uncharged particles is emitted when alpha particles strike beryllium atoms.

Explanation:

Chadwick discovered neutron while experimenting with a gold foil. A stream of alpha particles produced from a polonium source was directed at beryllium target. It was noticed that some penetrating radiations were produced. These uncharged particles were called neutrons because on the charge detector these particles showed no deflection.

Their nuclear reaction is as follow.

                             ₂He + ₄Be ----------> ₀n + ₆C

Chadwick noticed that neutrons cannot ionize gases and are highly penetrating particles.

8 0
4 years ago
Read 2 more answers
Preparation of ethanoic acid from 1,1,1-trichloroethane​
alekssr [168]
Anaerobic transformations of 1,1,1-trichloroethane (TCA), 1,1-dichloroethane (DCA), and chloroethane (CA) were studied with sludge from a lab-scale, municipal wastewater sludge digester. TCA was biologically transformed to DCA and CA and further to ethane by reductive dechlorination. TCA was also converted to acetic acid and 1,1-dichloroethene (11DCE) by cell-free extract. 11DCE was further biologically converted to ethene. This pathway was confirmed by transformation tests of TCA, DCA and CA, by tests with cell-free extract, and by chloride release during TCA degradation.
4 0
3 years ago
Facts about diane abbott
Elenna [48]
Diane Julie Abbott is a British Labour Part Politician. She has been the Member of Parliament for Stoke Newington since 1987. She became the first black woman to be elected to the House of Commons. Born in September 27th 1953 Married to David Thompson. Education: Newnham College, University of Cambridge
7 0
3 years ago
What is the final volume of NaOH solution prepared from 100.0 mL of 0.500 M NaOH if you wanted the final concentration to be 0.1
suter [353]

Answer:

The final volume of NaOH solution is 30ml

Explanation:

We all know that

              V1S1 = V2S2

             or V1= V2S2÷S1

             or  V1= V2×S2×1/S1

             or   V1=100×0.15×1/0.50

                    V1= 30

∴30 ml NaOH solution is required to prepare 0.15 M from 100ml 0.50 M NaOH solution.

5 0
3 years ago
Other questions:
  • A balloon contains 11.1 g of nitrogen monoxide gas (NO). how many molecules are in the balloon?
    6·1 answer
  • When a __________ is completely dissolved in a __________, a solution is formed.
    8·1 answer
  • Hydrogen gas and nitrogen gas react to form ammonia gas. What volume of ammonia would be produced by this reaction if of nitroge
    8·1 answer
  • Using the drop-down menu, order the steps in the dissolving process.
    11·2 answers
  • LOOK AT THE IMAGE ABOVE CAN SOMEONE PLEASE HELP ME AND SHOW FULL STEPS PLEASE
    11·1 answer
  • What is the lewis structure for HCL + Na?
    5·1 answer
  • Calculate the molar mass of Iron (II) chloride (3 sig figst
    15·2 answers
  • What volume of oxygen (02) gas is equal to 49.5 g 02 gas at STP?
    13·1 answer
  • Someone help asap please i suck at chem
    12·1 answer
  • Plz help! Brainliest if correct! Lots of points!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!