Answer: At a temperature of 34.44 K the volume and pressure of this gas become one-third of their initial values.
Explanation:
Given : [tex]V_{1}[/tex] = 1.2 L, [tex]T_{1} = 37^{o}C = (37 + 273) K = 310 K[/tex]
[tex]P_{1}[/tex] = 3 atm, [tex]V_{2} = \frac{1.2}{3} = 0.4 L[/tex] , [tex]P_{2} = \frac{3}{3} = 1 atm[/tex]
Formula used to calculate the final temperature is as follows.
[tex]\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}[/tex]
Substitute the values into above formula as follows.
[tex]\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}\\\frac{3 atm \times 1.2 L}{310 K} = \frac{1 atm \times 0.4 L}{T_{2}}\\T_{2} = \frac{1 atm \times 0.4 L \times 310 K}{3 atm \times 1.2 L}\\= \frac{124}{3.6} K\\= 34.44 K[/tex]
Thus, we can conclude that the final temperature is 34.44 K.
CH3OH=CO+H2 Balance the equations and tell the atoms. Giving brainliest
Answer:
CII + 4 e- → C-II (reduction)
4 H0 - 4 e- → 4 HI (oxidation)
Explanation:
Answer:
The correct answer should be:
[blank] CO + [2] H2 => [blank] CH3OH
or
CO + [2] H2 => CH3OH
Which is a physical property of a substance?
A. It is flammable.
B. It is odourless.
C. It is corrosive.
D. It explodes when a spark is present.
Explanation:
It explodes when a spark is present.. letter D
Answer:
A. It is flammable.
Explanation:
physical property is a characteristic of matter that is not associated with a change in its chemical composition. Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity.
between 316 m/s and 1162 m/s, which has the faster speed
Answer:
1162m/s is the faster speed
Explanation:
The speed is a physical property defined as the distance travelled of an object in determined amount of time.
A speed of 316m/s means the object is travelling 316 meters per second transcurred.
In the same way, the speed of 1162m/s means the object is travelling 1162m per second.
As the second object is travelling more distance per second than the first,
1162m/s is the faster speedHELP ME PLEASE WILL GIVE BRAINLY NO BAD ANSWERS
Answer:
7.17
Explanation:
convert 5.50g to moles of salicylic acid. Then use mole ratios and convert the moles of salicylic acid to moles of Asprin(mole ratio is 1:1). Then convert the moles to grams using the molar mass of asprin.
What must be known to find an object's average speed?
*direction and time
*distance and time
*displacement and direction
Answer:
distance and time
Explanation:
total distance/ total time
Annie has a soccer ball and a kickball. She kicks each ball with the same force. The soccer ball accelerates at 3 m/s2, and the kickball accelerates at 5 m/s2. Use Newton’s laws to describe why the kickball has a greater acceleration.
Also sorry its actually science
How many moles of gas are in a room with a volume of 85.0 L? A light bulb in the same room at the same temperature and pressure has a volume of 61.0 L and a 9.00 moles of gas.
Answer: A light bulb in the same room at the same temperature.
Explanation: Yw, BYE!!!
PLEASE HELP HELP ME. THIS IS DUE TODAY PLEASE
Answer:
B, C
Explanation:
Hope it helps i read it all
Empirical Formulas are the? A) multiple of the ratio B) simplest ratio of elements C)the mass formulas D) the percent expected to make in a reaction
How many formula units (f.u.'s) of GaF3 are present in 145 g of GaF3?
A)2.98 x 1024
B)1.89 x 1025
C)8.22 x 1023
D)6.89 x 1023
if there is a bottle of grape juice with 20% juice and there is 1000mL of total drink, how many mL of water
is in the bottle?
Answer:
760ml of water
Explanation:
Answer: 800mL
Explanation:
20% of 1000mL is 200. 1000mL - 200mL is 800mL
HELP ME PLS ASAP ILL GIVE BRAINLY
Whether you live in a tropical climate, a temperate climate, or a polar climate, you share something with the rest of the world- your climate is influenced by the latitude where you live. Which best describes why latitudes closer to the equator have warmer climates?
Latitudes closer to the equator are at lower elevations than latitudes away from the equator
Latitudes closer to the equator receive more solar energy than latitudes away from the equator
Latitudes closer to the equator are nearer to ocean currents than latitudes away from the equator
Latitudes closer to the equator get more wind carrying energy in the form of heat than latitudes away from the equator
Answer: Latitudes closer to the equator receive more solar energy than latitudes away from the equator
Explanation:
Lightning is caused by the build-up of and subsequent striking of electrons against the ground. Is a lightning bolt striking the ground an example of potential or kinetic energy?
Answer:
Kinetic
Explanation:
What property of ocean water affects climate the most?
O A. Its salt content
B. Its density
O C. Its heat capacity
O D. Its freezing point
Answer:
c
Explanation:
What keeps mountains from being even taller than they
already are?
Answer:
Three main processes control mountain height: lateral support of mountains from tectonic forces, which stops mountains from collapsing under their own weight or pushes them up against gravity; climate-controlled erosion; and isostasy, which keeps mountains afloat on the hot and soft mantle material.
Explanation:
A una mezcla de 300g, formada con 60% P/P de Hierro y 40% P/P de Arena, se le adicionan 135g de Cobre y 2,77g de Aluminio. ¿Cuál es la concentración final P/P de cada uno de los componentes?
Answer:
[tex]\%P/P_{hierro}=41.1\%\\\\\%P/P_{arena}=24.4\%\\\\\%P/P_{cobre}=30.8\%\\\\\%P/P_{aluminio}=0.6\%[/tex]
Explanation:
¡Hola!
En este caso, dado que estamos tratando con problem sobre porcentaje peso/peso de hierro, arena, cobre y aluminio, primero debemos calcular la masa inicial de estos dos primeros en la mezcla original de acuerdo con:
[tex]m_{hierro}=300g*0.60=180g\\\\m_{arena}=300*0.40=120g[/tex]
Ahora si podemos calcular la masa de la mezcla final como la suma de las masas de todos los constituyentes de la mezcla:
[tex]m_T=180g+120g+135g+2.77g=437.77g[/tex]
Finalmente, podemos calcular los porcentajes P/P como se muestra a continuación:
[tex]\%P/P_{hierro}=\frac{180g}{437.77g} *100\%=41.1\%\\\\\%P/P_{arena}=\frac{120g}{437.77g} *100\%=24.4\%\\\\\%P/P_{cobre}=\frac{135g}{437.77g} *100\%=30.8\%\\\\\%P/P_{aluminio}=\frac{g}{437.77g} *100\%=0.6\%[/tex]
¡Saludos!
The mass of the sun is about 1.98 x 10^30 kilograms. The mass of the earth is 5.97x 10^24 kilograms. The mass of the sun is how many times greater than the mass of
the earth?
Answer:
Explanation:
The mass of the sun is about 1.98 x 10^30 kilograms. The mass of the earth is 5.97x 10^24 kilograms.
1.98 x 10^30 / 5.97x 10^24 = 331658 times greater
Answer:
Explanation:
The mass of the sun / the mass of the earth
= 1.98 x 10^30 / 5.97x 10^24
= 3.32 x 10^5 times greater
What is the total volume of water that you have if you calculated that it
weighs 180g?
This is science
Can photosynthesis still take place if plants do not receive enough water from the water cycle? Why or why not?
Answer:
No.
Explanation:
Photosynthesis is the light dependent process which must occur for the plant to live. This process also requires water and carbon dioxide. If photosynthesis does not occur, the plant will die.
If plants do not receive enough water from the water cycle, photosynthesis can be affected, and in severe cases, it may not take place at all.
Why photosynthesis requires water?Photosynthesis requires water as one of its essential inputs, as it is used in the process of creating glucose and oxygen from carbon dioxide and light energy. Therefore, if plants do not receive enough water from the water cycle, photosynthesis can be impacted, and in severe cases, it may not take place at all.
Water is not only a raw material in photosynthesis, but it is also necessary for the regulation of plant cells' internal pressure, which is essential for maintaining their shape and structure. Without enough water, the cells' internal pressure decreases, causing them to shrink and lose their rigidity. This process is known as wilting.
Hence, water is essential for plant growth and photosynthesis, and if plants do not receive enough water from the water cycle, it can lead to wilting, stunted growth, and a reduction in photosynthesis.
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Is a hydrogel a smart polymer/stimuli-responsive polmer?
Answer:
Polymer scientists have been trying to mimic this behavior by creating so called smart polymers. ... One of the most important classes of stimuli-responsive polymers used for controlled drug delivery is crosslinked polymer networks, e.g., hydrogels and microgels.
Explanation:
Calculate the percent ionization of a 0.381 M solution of hydrocyanic acid.
Answer:
.00402 %
Explanation:
hydrocyanic acid (HCN) is a weak acid with a Ka of 6.17*10^-10 so you need to do a RICE table
initial concentration of HCN is .381 and initial H+ and CN- concentration is 0.
that means the equillibrium concentration of HCN will be (.381-x) and H+ and CN- will be x
put that into the formula for Ka, so it'll be Ka = x^2/(.381-x) and then use quadratic equation to solve. You'll end up getting x = 1.5 * 10^-5.
Then to find percent ionization you solve (concentration of formed ions / initial HCN)
Which will be (1.5 * 10^-5 / .381) * 100 = .00402 % making it a very weak acid <3
Which type of star has the greatest temperature on the HR diagram? Question 7 options: Red Supergiants Main Sequence White Dwarfs Red Giants
Answer:
Red Super Giants
Explanation:
Beacuse of the of their size, the core temperature is more hotter then White Dwarfs and Red Giants.
Answer:
Red Super Giants
Explanation:
Their core is the hottest.
plz mark me as brainliest.
1) For the equation in the picture, write down the molecular formula for each of the following species in the reaction:
a) Acid
b) Base
c) Conjugate Acid
d) Conjugate Base
2) In your own words, what is a Bronsted-Lowry Acid?
Answer:
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Balance the following reaction:
C2H6(g) + O2(g) → CO2(g) + H2O(g)
To calculate the atoms of an element in a given molecule, we need to multiply stoichiometry by the number that is written on the foot of that element. Therefore, the balanced equation is
2C[tex]_2[/tex]H[tex]_6[/tex](g) + 7O[tex]_2[/tex](g) → 4CO[tex]_2[/tex](g) + 6H[tex]_2[/tex]O(g)
What is Balanced equation?Balanced equation is the one in which the total number of atoms of a species on reactant side is equal to the total number of atoms on product side. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, displacement reaction.
C[tex]_2[/tex]H[tex]_6[/tex](g) + O[tex]_2[/tex](g) → CO[tex]_2[/tex](g) + H[tex]_2[/tex]O(g)
Multiply by 7 on reactant side and by 6 on product side to balance oxygen
C[tex]_2[/tex]H[tex]_6[/tex](g) + 7O[tex]_2[/tex](g) → CO[tex]_2[/tex](g) + 6H[tex]_2[/tex]O(g)
Now balance carbon and hydrogen
2C[tex]_2[/tex]H[tex]_6[/tex](g) + 7O[tex]_2[/tex](g) → 4CO[tex]_2[/tex](g) + 6H[tex]_2[/tex]O(g)
Therefore, the balanced equation is
2C[tex]_2[/tex]H[tex]_6[/tex](g) + 7O[tex]_2[/tex](g) → 4CO[tex]_2[/tex](g) + 6H[tex]_2[/tex]O(g)
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How many grams are in 1.52 moles of PC13? (molar mass: 137.33 g/mol)
Who are the scientists that contributed in arranging of the periodic table?
8.0 mol of methane gas reacts completely in a 2.00L container containing excess O2 in 3.2s. Find average rate of consumption of methane
Answer:
1.3 M/s
Explanation:
Step 1: Given data
Initial amount of methane (ni): 8.0 molFinal amount of methane (nf): 0 mol (it reacts completely)Volume of the container (V): 2.00 LTime elapsed (t): 3.2 sStep 2: Calculate the average rate of consumption of methane
Methane burns in excess oxygen according to the following equation.}
CH₄ + 2 O₂ ⇒ CO₂ + 2 H₂O
We can calculate the average rate of consumption of methane (r) using the following expression.
r = - Δn/V × t = - (nf- ni) / V × t
r = - (0 mol - 8.0 mol) / 2.00 L × 3.2 s = 1.3 M/s
Which element has the highest electronegativity?
Answer:
fluorine
Explanation:
Answer:
The element with the highest electronegativity is fluorine with a score of 4.0 (which is the highest possible)
Explanation:
I personally haven't gotten this question yet so I hope this helps you!
Complete and balance the following neutralization reaction, and estimate the
likely pH of the neutralization point. (3 pts)
Ca(OH)2 + HNO3 →
Answer:
we have a base-Ca(OH)2 and an acid - HNO3
→Their chemical reaction gives us water and salt Ca(NO3)+ H20 (neutralisation reaction)
the pH is expected to be acidic ... since nitric acid is a strong acid and calcium hydroxide is a weak base .
Explanation:
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When 25.5 grams of a molecular substance is dissolved in 225g benzene, the solution begins to freeze at -5.05C. Calculate the molar mass of this solute (I need to understand the work, and look at the image attached for the key for benzene.
Answer:
here :). hope this helps.