Answer:
157.64 L
Explanation:
We'll begin by converting 30 °C to Kelvin temperature. This can be obtained as follow:
T(K) = T(°C) + 273
T(°C) = 30 °C
T(K) = 30 °C + 273
T (K) = 303 K
Next, we shall convert 600 mmHg to atm. This can be obtained as follow:
760 mmHg = 1 atm
Therefore,
600 mmHg = 600 mmHg × 1 atm / 760 mmHg
600 mmHg = 0.789 atm
Finally, we shall determine the volume of the gas. This can be obtained as follow:
Number of mole (n) = 5 moles
Temperature (T) = 303 K
Pressure (P) = 0.789 atm
Gas constant (R) = 0.0821 atm.L/Kmol
Volume (V) =?
PV = nRT
0.789 × V = 5 × 0.0821 × 303
0.789 × V = 124.3815
Divide both side by 0.789
V = 124.3815 / 0.789
V = 157.64 L
Therefore, the volume of the gas is 157.64 L
Which statement is false? *
a.) Pressure must be exerted on a sample of a gas in order to confine it.
b.) Gases diffuse into each other and mix almost immediately when put into the same
container.
c.) The molecular weight of a gaseous compound is a non-variable quantity
d.) Gases can be expanded without limit.
e.) The density of a gas is constant as long as its temperature remains constant.
Answer:
d.) gases can be expanded without limit.
✓ What kind of carbon storages would be the most affected by humans?
Answer: Burning fuels?
Explanation: I’m not very sure actually
When a car starts rusting where there is a scratch on the paint, a redox reaction is happening
TRUE OR FALSE
Answer:
it is true
Explanation:
hope it helps :)
Answer: I think it is true
Explanation:
it is true because it will start rusting when there is a scratch on the paint!
I HOPE THIS HELPS YOU!!
HURRY ILL GIVE BRAINLIEST!
Match the cause to its effect.
Answer:
Cattles are giving nutrition supply throughout the year----some animals require nutrient enhancement for health
calves are given colostrum at birth----newborns require antibodies from their mothers
I dont want to write, so you know what the last option is
Explanation:
:) hope this helps
Freshwater makes up about 90% of the Earth's surface.
Answer:
what is your question?
Explanation:
I don't understand
using details and examples from the text explain how the digestive system helps your body obtain the energy it needs
Answer:
Explanation:
CH3OH can be synthesized by the reaction:
CO(g) + 2 H20) — CH3OH)
What volume of CH3OH gas (in L) can be synthesized if 18.6 L of Hy gas completely reacts at STP conditions?
Answer:
5
Explanation:
It is the year 2032, and a new planet (Planet Y) is discovered. An astronaut with a mass of 79.00 kg visits the new planet. It is discovered that his weight on the new planet is 740.8 lbs. What is the estimate of the g force on the planet and would the astronaut be heavier on Planet Y or on Earth? (Earth has a g force of 9.81 m/s2 ).
Answer:
“Newton’s Law of Gravity” gives the gravity force between two objects with masses m
and M separated by distance r:
F G
m M
r
2
G is called the Gravitational Constant, and has the value
6.671011N m
2
kg2
(N is for
Newton, the physicists’ unit of force) or
1.51011 lbm
2
kg2
.
Let’s go back to the example given in the text: two 150 lb people separated by 1 meter.
The mass of each person is
150lb
2.2
lb
kg
68kg
. Putting these into the formula gives
F 1.5101 1 lb m
2
kg2
(68kg)
2
(1m)
2
107
lb.
Newton’s Law of Gravity actually gives the force only between two small objects. If one
of the objects is a sphere (such as the Earth) then it turns out that you can still use the
formula, but you must use the distance to the center of the sphere as the value for r. As
an example, let’s put in numbers for a 1 kg object sitting on the surface of the Earth.
Then the force of attraction is given by the gravity equation with m = 1 kg, M = the mass
of the Earth =
24 610
kg, and r = radius of the Earth (that’s the distance to the center of
the sphere). This distance is r = 6371 km ≈
6
610
meters. Without plugging in the
numbers, can you guess what the answer will turn out to be? Guess, and then check this
footnote2
to see if you guessed correctly.
Suppose you weigh 150 lbs on the Earth. Then your mass is
150lb
2.2
lb
kg
68kg
. What will
you weigh on the Moon? We can calculate that by using Newton’s Law of Gravity, and
putting in the M = the mass of the Moon =
22 7.310
kg, r = the radius of the moon =
6
1.710
meters. The answer is F = 25 lb. That means you will weigh 25 lb. on the
surface of the Moon.
Explanation:
hope this helps :)
DESPERATE!!!!! What is the molar mass of an unknown gas that has a density of 2.29 g/L at a pressure of 0.75 atm and a temperature of 88. degrees Celsius?
Answer:
The molar mass of the gas is 90.4g/mol
Explanation:
To solve this question we have to use the equation:
d = PM / RT
Where d is density of the gas = 2.29g/L
P is pressure = 0.75atm
M is molar mass of the gas = ??
R is gas constant = 0.082atmL/molK
T is absolute temperature = 88°C + 273.15 = 361.15K
Solving for M:
dRT / P = M
2.29L*0.082atmL/molK*361.15K / 0.75atm = M
90.4g/mol = M
The molar mass of the gas is 90.4g/mol
Which part of homeostasis is this adorable puppy balancing out with his little stuffed animal buddy?
Body Temperature
Energy
Waste
Water Level
Cuteness
Plzzz help
Answer:
body temperature and energy
In a coffee-cup calorimeter, 100.0 g of H2O and 8.70 grams of Na3PO4 are added. The water had an initial temperature of 24.6 oC. After the dissolution of the sodium phosphate the temperature changed to 31.3 oC.
-Was the dissolution exothermic or endothermic? Explain.
-Calculate how much heat the water lost or gained.
Answer:
a.) exothermic
b.) 2,800.6 J
Explanation:
A sample of hydrogen gas has a volume of 145 mL when measured at 44
degrees C and 1.47 atm. What volume would the hydrogen sample occupy
at STP?
Answer:
[tex]186.01\ \text{mL}[/tex]
Explanation:
[tex]P_1[/tex] = Initial pressure = 1.47 atm
[tex]P_2[/tex] = Final pressure = [tex]10^5\ \text{Pa}[/tex]
[tex]T_1[/tex] = Initial temperature = [tex]44^{\circ}\text{C}[/tex]
[tex]T_2[/tex] = Final temperature = [tex]273.15\ \text{K}[/tex]
[tex]V_1[/tex] = Initial volume = 145 mL
[tex]V_2[/tex] = Final volume
We have the relation
[tex]\dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}\\\Rightarrow V_2=\dfrac{P_1V_1T_2}{T_1P_2}\\\Rightarrow V_2=\dfrac{1.47\times 101325\times 145\times 273.15}{(44+273.15)\times 10^5}\\\Rightarrow V_2=186.01\ \text{mL}[/tex]
Final volume of the sample is [tex]186.01\ \text{mL}[/tex].
a piece of debris travelling through space which ranges in size from a grain of sand to over 100ft in diameter
Answer:
Meteoroids are tiny asteroids or the broken-off crumbs of comets and sometimes planets. They range in size from a grain of sand to boulders 3 feet (1 meter) wide. When meteoroids collide with a planet's atmosphere, they become meteors
pls give me brainliest lol :)
Calculate the approximate volume of a 1.50 mol sample of gas at 15.0°C and a pressure of 3.75 atm
Answer
F 1.73 L
G 5.93 L
H 8.65 L
J 9.46 L
Answer:
The answer is J (9.46 L)
How many grams of BaCl2 can be made from 6 moles of Ba?
Answer:
823.98
Explanation:
Since there is only one Ba per atom you simply times 1 by 6 to get the number of mols of Ba per atom, then you times this by the atomic mass of Ba on the periodic table
How many grams of Fe2O3 are formed when 51.3 grams of iron, Fe, react completely with oxygen, O2? 4 Fe + 3 O2 --> 2 Fe2O3
The Fe is our limiting reactant here. First, convert the mass of Fe given to moles of Fe by dividing mass by the molar mass:
(51.3 g Fe)/(55.845 g/mol) = 0.9186 mol Fe.
According to the balanced equation, 2 moles of Fe2O3 are produced for every 4 moles of Fe that are consumed. In other words, half as many moles of Fe2O3 will be produced as there are Fe that react:
(0.9186 mol Fe)(2 mol Fe2O3/4 mol Fe) = 0.4593 mol Fe2O3.
Finally, convert the moles of Fe2O3 back to grams by multiplying by the molar mass of Fe2O3:
(0.4593 mol Fe2O3)(159.6882 g/mol) = 73.3 g Fe2O3.
So, 73.3 grams of Fe2O3 are formed.
A man pulled a food cart 4.5 m to the right for 15 seconds. What is the average speed of the food cart to the nearest tenth of a m/s?
The average speed of the food cart to the nearest tenth of a m/s is 0.3 meter per second.
How do we calculate speed?Speed of any moving body will be calculated by using the below formula as:
Speed = Distance / Time
Given that, Distance travelled to the right side = 4.5m
Time to travel = 15 sec
On putting values on the above equation, we get
Speed = 4.5 / 15 = 0.3 m/s
Hence required speed is 0.3m/sec.
To know more about speed, visit the below link:
https://brainly.com/question/6504879
THIS IS FOR SCIENCE PLS HELP ME WRITE MY PROMPT How does the human population and human activity affect Earth?
(Answer ASAP)
In which state(s) of matter could a substance have thermal energy?
A) Only liquids and gases
B) Only liquids and solids
C) Only liquids
D) Liquids, solids, and gases
Describe two physical properties of sodium which are different from the physical properties of transition elements such as copper.
Answer:
Malleability : Capable of being shaped or bent.
Ductility : Easily pulled or stretched into a thin wire.
Luster : Has a shine or glow.
Conductivity : Good transmission of heat or electricity.
Softness : Soft enough to be cut with a knife.
How many grams of carbon dioxide would be produced if we use 35 grams of methane in the reaction below? CH4 +2O2---- Co2 + 2H2O
Answer:
96g of CO₂ would be produced
Explanation:
Based on the reaction:
CH₄ + 2O₂ → CO₂ + 2H₂O
1 moles of methane, CH₄ produces 1 mole of carbon dioxide, CO₂.
To solve this question we must find the moles of methane added in the reaction. These moles added are equal to moles of CO₂ produced. With the molar mass of CO₂ (44.01g/mol) we can find the grams that would be produced:
Moles CH₄ -Molar mass: 16.04g/mol-:
35g * (1mol / 16.04g) = 2.182 moles of CH₄ are added = Moles CO₂ produced.
Mass CO₂ produced.
2.182 moles CO₂ * (44.01g / mol) =
96g of CO₂ would be producedIf 35.4 liters of hydrogen gas are used, how many liters of nitrogen gas will be needed for the above reaction at STP?
Answer:
ujdbdbfbf fbFbsygtsjysnsgndhngsnsgnafbfa
लेख्नुहोस् । (Deserts are very hot during the day and very cold
during the night. Give reason.)
Because deserts have such little water vapor in the air, it makes it harder to trap heat or cold in a desert. And at night, the sun no longer heats the desert and the heat from the day doesn't stay trapped. Because of this, some deserts can get extremely cold at night, dropping to temperatures below 40F.
Hope this helps!! Have a wonderful day!!
It is actually sand, which turns the entire phenomenon hot. Sand cannot hold the heat. It acts like a mirror to the sun. During the daytime, it stays warm, and when the Sun is absent it loses all its heat making the nights colder. There’s nothing in the desert that can either absorb heat from the sun or hold it on the surface when the sun is set.
What happens when you change the number of protons keeping the numbers of other particles the same?
Answer:
See explanation
Explanation:
The atomic number refers to the number of protons in the nucleus of an atom. We identify an element by its atomic number.
When the atomic number of an atom of an element is changed, we have changed the identity of that atom and transformed it into an atom of a different element.
For example, if we add a proton to a sodium atom, we create a magnesium atom. If we remove a proton from a sodium atom, we create a neon atom.
Help asap please
4. Mixing sand and salt in water then passing it through a filter separates out the sand because salt
in water and sand does not.
a) reacts
b) dissolves
c) disappears
Answer:
dissolve
Explanation:
salt will dissolve in water while sand will not, so you arent going to see salt pass through
Answer:
b
Explanation:
4.2 L of a gas has a pressure of 560mmHg at 72⁰F. What is the temperature at760mmHg if the volume is still 4.2 L? (5 pts)
Answer:
The temperature at 760mmHg if the volume is still 4.2 L is 400.862 K
Explanation:
Gay Lussac's law indicates that when there is a constant volume, as the temperature increases, the pressure of the gas increases. And when the temperature is decreased, the pressure of the gas decreases. This law can be expressed mathematically as follows:
[tex]\frac{P}{T} =k[/tex]
Having an initial state 1 and a final state 2, the following is true:
[tex]\frac{P1}{T1} =\frac{P2}{T2}[/tex]
In this case:
P1= 560 mmHgT1= 72 F= 295.372 K (being 32 F= 273.15 K)P2= 760 mmHgT2= ?Replacing:
[tex]\frac{560 mmHg}{295.372 K} =\frac{760 mmHg}{T2}[/tex]
Solving:
[tex]T2= 760 mmHg*\frac{295.372 K}{560 mmHg}[/tex]
T2= 400.862 K
The complete
conversion of 90.0
grams of hydrogen to
ammonia would require
how many moles of
nitrogen gas?
Answer:
15moles
Explanation:
The balanced equation of this reaction is as follows:
N2 + 3H2 → 2NH3
Molar mass of H2 = 2g/mol
mole = mass/molar mass
mole = 90/2
mole = 45moles.
Based on the above balanced equation, 1 mole of nitrogen gas (N2) reacts with 3 moles of hydrogen gas (H2)
Hence, 45moles of hydrogen gas will produce (45 × ⅓) = 15moles of nitrogen gas (N2).
Answer:
Its 14.9 for those who are doing the escape room :)
Explanation:
What is simple chemical test could you carry out to see if carbon dioxide has been produced
Carbon Dioxide
A positive test will result in the lime water turning milky. Lime water turns milky as the Calcium hydroxide (chemical name for limewater) reacts with carbon dioxide to form Calcium Carbonate which is insoluble in water and thus forms a milky white precipitate.
PLEASEEEE HELPPP??????
Answer:
(B) Grasses to Grasshoppers to Birds to Foxes
Explanation
The pressure in a bicycle tire is 1.34atm at 33.0 ° C. At what temperature will the pressure inside the tire be 1.60atm?
Answer:
92.37°C
Explanation:
Assuming the volume remains the same in both the states ( bicycle tire).
Then as per ideal gas equation
[tex]P_1/T_1 = P_2/T_2[/tex]
where P1, P2 are pressure at two different states and T1, T2 are temperature at these two states
Given:
P1 = 1.34 atm, T1 = 33.0 ° C = 306K
P2 = 1.60 atm, T2 = ?
1.34/306 = 1.60/T_2
⇒ T2 = 1.60×306/1.34
= T2= 365.37K= 92.37°C