Answer:
The new volume of the gas is 276.45 mL.
Explanation:
Charles's law indicates that for a given sum of gas at constant pressure, as the temperature increases, the volume of the gas increases, and as the temperature decreases, the volume of the gas decreases.
Charles's law is a law that mathematically says that when the amount of gas and pressure are kept constant, the quotient that exists between the volume and the temperature will always have the same value:
[tex]\frac{V}{T} =k[/tex]
Analyzing an initial state 1 and a final state 2, it is satisfied:
[tex]\frac{V1}{T1} =\frac{V2}{T2}[/tex]
In this case:
V1= 250 mLT1= 293 KV2= ?T2= 324 KReplacing:
[tex]\frac{250 mL}{293 K} =\frac{V2}{324 K}[/tex]
Solving:
[tex]V2=324 K*\frac{250 mL}{293 K}[/tex]
V2= 276.45 mL
The new volume of the gas is 276.45 mL.
Plz Answer this if you Answer this right you will get brainliest
Don't Answer this question if you don't know you will be reported
Reaction 1 :-
AlZn²⁺Zn²⁺AlReaction 2 :-
LiAl³⁺Al³⁺Li____________________HELP ME PLS
What is the mass of a water molecule if the hydrogens each have one neutron and the oxygen has eight neutrons?
a. 10
b. 12
c. 16
d. 20
Answer:
H2O
=(1×2)+(8)
=20
Explanation:
We have 1 Hydrogen(H) and 8 Oxygen(O)neutrons . Following the molecule formula, H2O, which means we have 2 Hydrogen that needs to times with 1 neutron;and we have only 1 Oxygen which has 8 neutrons. So 2 (H) have to times 1 and 1(O) have to times 8.
What is the elevation of point x on rock mountain ( Ik it's blury but please help for 30 points ) ty
Explanation:
A contour map shows two locations, X and Y, 5 kilometers apart. The elevation at location X is 800 meters and the elevation at location Y is 600 meters.
In order for photosynthesis to happen, plants need radiant energy and which of the
following reactants?
A
Glucose sugar and water
B
Oxygen and water
с
Carbon dioxide and water
D
Oxygen and glucose sugar
Answer:
the answer is c carbon dioxide and water
How many grams of NaNO3 can be dissolved in 200mL of water at 40 degrees Celsius?
Group of answer choices
200 grams
210 grams
100 grams
105 grams
Answer:
I think the answer is, 100.
Explanation:
but i dont know try
How many moles are in 25.0 grams of KMnO4?
0.124 mol KMnO4
0.158 mol KMnO4
0.199 mol KMnO4
0.316 mol KMnO4
Answer:
158 mol :)
Explanation:
Which statement about noble gases is correct? *
They are extremely rare in nature.
They are highly reactive with both metals and nonmetals.
O They exist as single atoms rather than as molecules.
O They form compounds with very bright colors.
Answer:
Hello There!!
Explanation:
I believe the answer is O They form compounds with very bright colors.
hope this helps,have a great day!!
~Pinky~
The statement about noble gases that is correct is D. They form compounds with very bright colors.
Noble gases simply refers to the elements that have similar properties. Noble gases are colorless, odorless, and have very low reactivity.
Examples of noble gases are helium, argon, Krypton, xenon, etc. Noble gases also form compounds with very bright colors.
In conclusion, the correct option is D.
Read related link on:
https://brainly.com/question/24070118
When you find the gram formula mass, the results should be in *
Help me out ;/
Answer: g/mol
Explanation:
The gram formula mass of CuSO 4 is 159.60 g/mol
Multiply the subscript for each element by its molar mass (atomic mass on periodic table in g/mol). Then add the results. This will give you the molar mass of the compound (mass of 1 mole).
Cu : ( 1 × 63.546 g/mol ) = 63.546 g/mol
S : ( 1 × 32.065 g/mol ) = 32.06 g/mol
O : ( 4× 15.999 g/mol ) = 63.996 g/mol
CuSO 4 : 63.546 g/mol + 32.06 g/mol + 63.996 g/mol = 159.60 g/mol (rounded to two decimal places)
When pumping air into a tire, you have to pull back on the pump plunger to fill the pump with air. This increases the volume of the air inside the pump. This increase in volume has what effect on the gases inside the pump?
Question 9 options:
the gas molecules inside the pump are able to spread out more which decreases the pressure of the gas.
the gas molecules inside the pump get compressed and packed closer together which decreases the pressure of the gas.
the gas molecules inside the pump are able to spread out more which increases the pressure of the gas.
the gas molecules inside the pump get compressed and packed closer together which increases the pressure of the gas.
Answer:
Pulling back on the plunger allows you to put in more air into the pump and the more air you have inside a fixed volume, the greater the pressure becomes. (D)
PLEASE HELP ME ASAP!!! 10 POINTS!!
The three equations below represent nuclear fission and nuclear fusion reactions. For each equation, tell whether fission or fusion has occurred and write the missing term in the equation.
A) ²³⁵₉₂ U+n→⁹⁵₃₈Sr+____+2n
B) ³₁H+²₁H→⁴₂H+____
C) ____+n→⁹²₃₉Y+¹⁴⁰₅₃I+2n
Explanation:
A) fission: Iodine-140 (atomic number = 53)
B) fusion: 1 neutron
C) fission: Uranium-233 (atomic number = 92)
what type of heat is it when a handle of a saucepan get hot when it is on the stove
Answer:
A conduct heat
Explanation:
because in cooking burners on stove will conduct heat energy to the bottom of the pan sitting on top of it. From there, the pan conducts heats to it content.
____ are pieces of information that describe the appearance of the cell's content.
I think the answer is organelles.
Chemical symbols stand for?
Answer Explanation:
If it is like H, or O or N or Na or Cl, those are the elements. Those are on the Periodic table. pH is the acidity and basicity of a substance, how acidic or basic(caustic) it is. mol is Moles. kPa is kilopascals. STP is standard temperature and pressure, at 0*C(Celsius), or 273.15 K(Kelvin), and 101,325 pascals, or 101.325 kilopascals.
Avagadro's Number is 6.022x10^23, the number of atoms in a mole. The Ideal Gas Law is P(Pressure in kPa) times V(Volume in L, liters) equals n(number of moles of gas) times R(the universal gas constant, or 8.3145 (L kPa/K mol) or 8.3145 liters kilopascals per Kelvin mole. that is just a few of them.
SOMEBODY PLEASE HELP ME ASAP. WILL GIVE BRAINLIEST TO BEST ANSWER.
Answer:
135.80 g of Ag
Explanation:
[tex]40gCu *\frac{1mol Cu}{63.546g Cu} *\frac{2mol Ag}{1molCu} *\frac{107.868g Ag}{1mol Ag}[/tex]
~ 135.80 g of Ag
Which of the following is a method for measuring energy in food?
A. reading the label
B. filtration
C. chromatography
D. calorimetry
A scientific is a statement that explains what always happens under very specific conditions.
O hypothesis
conclusion
a
theory
O
law
Answer:
law
Explanation:
que es la nanotecnologia ?
porfis lo nesecito urgente para antes de las 10
Answer:
Se aclama la nanotecnología por tener el potencial de aumentar la eficiencia del consumo de energía, ayudar a limpiar el medio ambiente y resolver los principales problemas de salud. Se dice que puede aumentar masivamente la producción de fabricación a costos significativamente reducidos.
espero que esto ayude
3.00 L of a gas is collected at 150 K and then allowed to expand to
15.0 L. What must the new temperature be in degrees C in order to
maintain the same pressure (as required by Charles' Law)?
Answer:
477 ºC
Explanation:
on an isobaric process, an increase on the volume implies an increase on the temperature:
V1/T1 = V2/T2
T2 = V2T1/V1 = 15.0 L×150 K/3.00 L = 750 K
t/ºC = T/K - 273 = 750 K/K - 273
t = 477 ºC
V1: initial volume
T1: initial temperature
V2: final volume
T2: final temperature
I have 3 questions that I will need help from you. 1. The weight of a millimeter of (NH4)2 HPO4 is? 2. How many moles of alanine, C3H7NO2 are there in 159g of alanine? And 3. Nitric acid is a very important industrial chemical. 1.612 * 10^10 pounds of it were produced in 1992. If the density of nitric acid is 12.53 pounds/gallon. What volume would be occupied by this quantity. (1 gallon =3.7854liters)
Answer:
1. m(NH₄)₂HPO₄ = 1.62 g
2. molesC₃H₇NO₂ = 1.79 moles
3. V = 4.87x10⁹ L
Explanation:
These questions are pretty easy to solve, using the correct expressions and formula.
1. To do this, we just need the density of the (NH₄)₂HPO₄. In this case, the reported density is 1.62 g/mL, therefore:
d = m/V (1)
Where:
d: density (g(mL)
m: mass of the compound (g)
V: volume of the compound (mL)
As we already have the volume, we can solve for m:
m = d * V (2)
m = 1.62 * 1
m(NH₄)₂HPO₄ = 1.62 g2. To do this, we need the atomic weights of each element that composes the alanine.
C: 12 g/mol; H: 1 g/mol; N: 14 g/mol; O: 16 g/mol
With these atomic weight, let's determine the molar mass of alanine:
MM C₃H₇NO₂ = 3(12) + 7(1) + 14 + 2(16) = 89 g/mol
Now to get the moles, we use the following expression:
moles = m/MM (3)
moles = 159 / 89
molesC₃H₇NO₂ = 1.79 moles3. We have the mass and density of the nitric acid, we just solve for Volume from expression (1) of part 1:
V = m/d (3)
V = 1.612x10¹⁰ pounds / 12.53 pounds/gallons
V = 1.287x10⁹ gallons
Converting this to liters:
V = 1.287x10⁹ * 3.7854
V = 4.87x10⁹ LHope this helps
Which general formula represents the homologous series of hydrocarbons that includes the compound
2-heptyne?
(1) Cn H2n-6
(2) Cn H2n-2
(3) Cn H2n
(4) Cn H2n+2
the general formular is cnH2n-2
name two other substances with giant covalent structures
Answer:
Diamond and graphite forms of carbon, silicon dioxide (silica)
thenks and mark me brainliestt pls :))
Answer:
Diamond and graphite forms of carbon) and silicon dioxide (silica) are examples of giant covalent structures (lattices) of atoms. All the atoms in these structures are linked to other atoms by strong covalent bonds and so they have very high melting points.
The power of the crane was 68600 W
Caculate the time taken for the crane to do 3430000 J of work
Give the unit
Answer:
t = 50 s
Explanation:
P = W/t
Solving for t,
t = W/P = (3430000 J)/(68600 Watts)
= 50 s
Note: 1 Watt = 1 J/s
According to the question, the time that is taken by the crane which has the power of 68600 W to 3430000 J of work is 50 seconds.
What is Power?Power may be defined as the amount of energy that is significantly transmitted or converted per unit of time. In a more simple sense, it is also characterized as the measure of the rate of doing work.
According to the question,
The power of the crane = 68600 W.
The amount of work that the crane has to do = 3430000 J.
Time may be calculated with the help of the following formula:
Power = Work/time.Time = Work/power = 3430000 J/68600 W = 50 seconds. (where 1 W = 1 J/sec).Therefore, according to the question, the time that is taken by the crane which has the power of 68600 W to 3430000 J of work is 50 seconds.
To learn more about Power, refer to the link:
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What form of pollution can lichens be a good indicator of?
Answer:
Lichens can be used as air pollution indicators, especially of the concentration of sulphur dioxide in the atmosphere. Lichens are organisms that grow in exposed places such as rocks or tree bark. They need to be very efficient at absorbing water and nutrients to grow there.
Can someone pleasee help me with this asap!! Im struggling
4a. D - The last number in the configuration represents the group, in this case 3, and the number of shells represent the period, which is also 3.
4bi. Rubidium metal reacts very rapidly with water to form a colourless solution of rubidium hydroxide (RbOH) and hydrogen gas (H2). The resulting solution is basic because of the dissolved hydroxide. The reaction is very exothermic and explosive.
4bii. Lithium is smaller in size than potassium . so valence electrons are more tightly held in Li than K. Due to larger size of K the valence electrons are loosely held and easy to remove the electron from K. Hence K is more reactive.
I need help everyone
Answer:
The answer is D
The last one
How many grams of KI would you need to prepare 0.50 g of 7.0% KI (m/m) solution?
Answer:
fomula; ( x = mutiplacation btw)
% m/m = m(solute) / m(solution) x 100%
0.50g x 70% = m/m x 100%
0.5g x 70% / 100% = 3.5 g KI
(both % cancle each other)
Explanation:
heads up might be wrong i did it myself
how are fossils discovered
Helpp!! Please it’s balancing equations and I really need help in it it’s so hard theirs two other parts if you can help with those too:))
1
50.0 grams of an unknown metal is heated to 100.0°C and then placed in a calorimeter with 250.0 mL of water. If the final temperature of the
metal is 29.1°C and the calorimeter absorbed 824 Joules of energy, what
is the specific heat of the unknown metal? *
Why is water often used as the main ingredient in cosmetics?
Answer:
Water forms the basis of almost every type of cosmetic product, including creams, lotions, makeup, deodorants, shampoos and conditioners. Water plays an important part in the process, often acting as a solvent to dissolve other ingredients and forming emulsions for consistency.
Explanation:
Water forms the basis of almost every type of cosmetic product, including creams, lotions, makeup, deodorants, shampoos and conditioners. Water plays an important part in the process, often acting as a solvent to dissolve other ingredients and forming emulsions for consistency.