Answers
Answer: 67.23 L
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.
To calculate the number of moles, we use the equation:
[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}[/tex]
Putting in the values we get:
[tex]\text{Number of moles of methane}=\frac{48g}{16g/mol}=3moles[/tex]
1 mole of methane occupies = 22.4 L
Thus 3 moles of methane occupy = [tex]\frac{22.4}{1}\times 3=67.23L[/tex]
Thus volume of 48 grams of methane gas is 67.23 L
Related Questions
PLEASE ANSWER ALL QUESTIONS WILL MARK BRAINLY
1. Calculate the density for the following cube if it’s mass is 1.25 g and each side has a measurement of 3 cm.
2. Would the cube in question 1 float or sink in water? ( Calculate the density for the following cube if it’s mass is 1.25 g and each side has a measurement of 3 cm.)
3. If an irregular-shaped piece of gold is placed into a graduated cylinder and it displaces 15 ml of water, what is the volume of the object?
4.How many elements are in the particle with the chemical formula C2H7N3?
5.How many atoms are in the particle with the chemical formula C2H7N3
Answers
Answer:
1. 2.89
2. Will it float in fresh water? Yeah, sure it will!
3. 5g/ml
4. 3 because the letters represent the elements
5. 12
Explanation:
What are low tides caused by
Answers
How do the melting and boiling points of water compare to that of other molecular compounds of similar molar mass?
Select one:
a. They are both much lower.
b. They are both about the same.
c. The melting point is much lower, while the boiling point is much higher.
d. They are both much higher.
Answers
Answer:
The answer is D.
Explanation:
The melting and boiling points of water compare to that of other molecular compounds of similar molar mass.
c. The melting point is much lower, while the boiling point is much higher.
Melting point of water:The melting point for water is 0 degrees C (32 degrees F). The boiling point of water varies with atmospheric pressure. At lower pressure or higher altitudes, the boiling point is lower. At sea level, pure water boils at 212 °F (100°C). The melting point of water is the temperature at which it changes from solid ice into liquid water.
Thus, the correct option is c.
Find more information about Melting point here:
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Which is NOT a way nitrogen can be fixed or made more useful?
Answers
If you were able to see what was happening with the molecules of two liquids of
the same amount but with different thermal energies, what would you see?
Answers
Answer:
In a gas, the distance between molecules, whether monatomic or polyatomic, is very large compared with the size of the molecules; thus gases have a low density and are highly compressible. In contrast, the molecules in liquids are very close together, with essentially no empty space between them:
The muscular system and the skeletal system work together so the body can do what?
move
pump blood
get oxygen
digest food
Answers
Answer:
Move
Explanation:
*
Which factor is not involved in the creation of ocean currents?
O The salinity of seawater.
O The unequal heating of the earth
Ships traveling through the ocean
O The rise and fall of ocean tides created by the moon.
Answers
Answer:
Ships traveling through the ocean
A sealed container at 25oC contains a gas at a pressure of 104 kPa. What is the pressure of the gas when it is heated to 225oC?
1. 304 kPa
2. 936 kPa
3. 174 kPa
4. 62.2 kPa
Answers
Answer:
174 kPa
Explanation:
Given that,
Initial temperature, T₁ = 25° C = 25+273 = 298 K
Final temperature, T₂ = 225°C = 225 + 273 = 498 K
Initial pressure, P₁ = 104 kPa
We need to find the new pressure. The relation between the temperature and pressure is given by :
[tex]\dfrac{P_1}{T_1}=\dfrac{P_2}{T_2}[/tex]
So,
[tex]P_2=\dfrac{P_1T_2}{T_1}\\\\P_2=\dfrac{104\times 498}{298}\\\\P_2=173.79\ kPa[/tex]
or
P₂ = 174 kPa
So, the new pressure is 174 kPa.
A student bends a paperclip rapidly back and forth. When he touches the point where he was
bending the paperclip, he finds that its temperature has increased. This indicates that the
atoms in that part of the paperclip have increased in what kind of energy
Answers
Answer:
conservation .
Explanation:
Please help! I don’t have a time limit, so take you’re time!
Answers
Answer:
c. They have similar chemical properties.
Explanation:
Elements in a group (column) of the periodic table will all have the same number of valence electrons. Valence electrons determine a number of an element's chemical properties, which means that elements in the same group will have similar properties. For example, the alkali metals of Group One all have one valence electron and are highly reactive.
Answer:
C they have the same electrons because they are the same organism
what is the answer to this? i do give brainliest to the first person who responds!!!!!
Answers
Answer: the moon passes through the earth's shadow
Explanation:
In this case the earth's shadow blocks the sun's light which normally is reflected off the moon's surface. So since the sunlight is blocked by the earth we call this a lunar eclipse
In the reactions,A products with the concentration [A]0=1.512M,[A]is found to be 1.496at t=30S.With the initial concentration [A]0=2.584M,[A]is found to be 2.552M at t=1minute.What's the order of
Answers
Answer:
Zero order
Explanation:
Reaction rate for experiment 1 =
1.496 - 1.512 / 30 - 0 = - 5.3 * 10^-4 Ms-1
Reaction rate for experiment 2
2.552 - 2.584/60 - 0 = - 5.3 * 10^-4 Ms-1
So,
Since the rate of reaction does not change with change in concentration of reactants (identified by the fact that the rates of reaction 1 and reaction 2 are the same), the reaction is zero order.
Waves are caused by blank and tides are caused by blank
Answers
Answer:
Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by the friction between wind and surface water. As wind blows across the surface of the ocean or a lake, the continual disturbance creates a wave crest. ... The gravitational pull of the sun and moon on the earth also causes waves.
Gravity is one major force that creates tides. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996). ... Tidal forces are based on the gravitational attractive force.
If the Tides is working then out “ High and low tides are caused by the Moon. The Moon's gravitational pull generates something called the tidal force. The tidal force causes Earth—and its water—to bulge out on the side closest to the Moon and the side farthest from the Moon. These bulges of water are high tides“.
f the electron configuration of Li is 2,1 and the electron configuration of Na is 2,8,1, what is the electron configuration of K? (PLEASE BE QUICK)
Answers
Answer:
1s 2s 2p
1s2 2s1
2 1 1
1s2 2s2
HELP CHEM
(DONT SSEND LINKS TO A WEBSITE, TELL ME HERE OR ILL REPORT)
HEHEHEHEHEHELLLLp
Answers
Answer and Explanation:
Positive ions.
They lose the electron and become positive.
#teamtrees #PAW (Plant And Water)
Have a good day!
Answer:
Positive ions :)
Explanation:
What is the molar ratio between carbon dioxide to water?
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
Answers
Answer:
8:10
Explanation:
The coefficients of a balanced chemical equation give us the mole ratios. The coefficient of carbon dioxide here is 8 and water is 10.
Write the product for each synthesis reaction . Balance the chemical equation . a) Be+O 2 Li+Cl 2 c) Mg+N 2 d) Al+Br 2 K+O 2
Answers
Answer:
j,
Explanation:
You need to make 10.0 L of 1.2 M KNO3. What molar ( concentration) would the potassium nitrate solution need to be if you were to use only 2.5 L of it? *
Answers
Answer:
2.5L [NaCl] concentrate needs to be 4.8 Molar solution before dilution to prep 10L of 1.2M KNO₃ solution.
Explanation:
Generally, moles of solute in solution before dilution must equal moles of solute after dilution.
By definition Molarity = moles solute/volume of solution in Liters
=> moles solute = Molarity x Volume (L)
Apply moles before dilution = moles after dilution ...
=> (Molarity X Volume)before dilution = (Molarity X Volume)after dilution
=> (M)(2.5L)before = (1.2M)(10.0L)after
=> Molarity of 2.5L concentrate = (1.2M)(10.0L)/(2.5L) = 4.8 Molar concentrate
Trimix 10/50 is a gas mixture that contains 10% oxygen and 50% helium, and the rest is nitrogen.
A tank of Trimix 10/50 has a total pressure of 2.07 * 104 kPa.
What is the partial pressure of oxygen?
Question 1 options:
2.07 * 104 kPa
2.07 * 103 kPa
8.3 * 103 kPa
1.04 * 104 kPa
Answers
Answer: 2.07 x 10^3 kPa
Explanation:
Answer:
2.07 x 10^3 kPa
Explanation:
I need help on this question
Answers
Answer:
When a front passes over an area, it means a change in the weather. Many fronts cause weather events such as rain, thunderstorms, gusty winds, and tornadoes. At a cold front, there may be dramatic thunderstorms. At a warm front, there may be low stratus clouds. Usually, the skies clear once the front has passed.
Explanation:
Plz make me brainliest :)
Have a nice day
Answer:
Email your teacher they will give you the answers try it yourself
Explanation:
Pizza is classified as
an element
a compound
a mixture
Answers
Answer:
pizza is a mixture of a lot of things like dough, sauce, meat, veggies, cheese, etc.
:D
How is solar heat collected?
Please Help
I will give you Brainlist
Answers
Answer:
By solar panels
Explanation:
HELP!! URGENT!! WILL GIVE BRAINIEST
Answers
Answer:
11. Mn (CH 3 CO 2) 2. (H 2 O) n where n = 0, 2, 4.
12. Au2O
Explanation:
Hope this helps
NH3+
H2(SO4) =
(NH4)2(SO4)
Balance
Answers
Answer:
2 NH3 + H2SO4 = (NH4)2SO4
Explanation:
The reaction type is synthesis
What is the charge on an ion that has 10
electrons, 12 protons, and 11 neutrons?
a. 1+
b. 2+
C. 1-
d. 2-
Answers
Answer:
1+
Explanation:
What is the mass number of the atom shown?
a. 11
b. 18
d. 20
C. 19
Answers
Answer:
Explanation:it is 11
does anyone have the answers to the American Association of Chemistry Teachers What makes something feel hot or cold ?
Answers
Answer:
thermoreceptors
Explanation:
thermoreceptors detect temperatures. we are equipped with some that are activated by cold and some that are activated by hot
A student is performing experiments on a particular substance. Which
statement is an observation of a chemical property of the substance?
A. It boils.
B. Electricity passes through it.
C. Its viscosity decreases.
D. It reacts with acid
Answers
The statement it reacts with an acid is an observation of a chemical property of the substance.
What is chemical property?A chemical property is a characteristic of a substance that are observed in a chemical reaction. Some major chemical properties include flammability, toxicity, heat of combustion, pH value, rate of radioactive decay and chemical stability.
What is acid?Acid is a substance that gives hydrogen ions (H+) when dissolved in water. Examples of acids are Hydrochloric acid (HCl), Sulphuric acid (H2SO4), Nitric acid (HNO3), carbonic acid (H2CO3)Properties of acids:
Acid is sour in taste.Acid reacts with base to give salt and water.Acid turns blue litmus paper to redWhen acid reacts with carbonates and bicarbonates, carbon dioxide is produced.To learn more about acids here
https://brainly.com/question/21934387
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The element which has atomic number 17 is considered from... A. Metals B. Non-metals C. Noble gas D. No correct answer Please explain with your answer.
Answers
Answer:
B. Non-metals
Explanation:
The element with the atomic number of 17 is Cl.
Chlorine belongs to the group 7 in the periodic table. It is a non metal.
Correct option: B. Non-metals
From a cross between a short haired guinea pig (hh) and a long haired guinea pig (Hh), what would be the possible phenotypes of the offspring?
A. 100% will have long hair.
OB. 75% will have long hair; 25% will have short hair.
OC. 50% will have long hair; 50% will have short hair.
O D. 25% will have long hair; 75% will have short hair.