Answers
Answer:
342 g/mole
Explanation:
Mass of the carbon = 12 g
Mass of the hydrogen = 1 g
Mass of the oxygen = 16 g
Given: Chemical Formula of the Sucrose = C12H22O11
Molar mass = 12 x 12 + 1 x 22 + 16 x 11
= 144 + 22 + 176
= 320 + 22
= 342 g/mole ➪ molar mass of the sucrose
342 g.
Explanation:
C12H22O11 ------> SugarCarbon has mass -> 12
Hydrogen has mass -> 1
Oxygen has mass -> 16
=> (12× 12 ) + (1 ×22 ) + ( 16 × 11 )
=> 144 + 22 + 176
=> 342 gram
__________________Molecular mass : The Molecular mass of a substance is the sum of the atomic masses of all atoms in a molecule of a substance, e.g ., Molecular mass of water is 18u.H2O = 2 × H + 1 × O=> 2 × 1 + 1 ×16 = 2+16= 18 u. Mass of one mole of a substance is called its molar mass. ___________________what is a Molecule?
A Molecule is the smallest Particle of an element or a compound capable of independent existence under ordinary conditions. It shows all the properties of tge substance.Related Questions
Aluminum is often melted down for recycling purposes. Assuming 1 kg of aluminum is at room temperature, what is the minimum amount of heat needed to melt it to a liquid? The specific heat capacity of aluminum is 899 J/kg°C, the melting point is 660°C, and the latent heat of fusion is 3.97 x 105 J/kg.
60 points
Answers
The minimum amount of heat needed to melt it to a liquid will be 569.067 kJ.
What is enthalpy of fusion?The minimum amount of heat needed to melt it to a liquid is known as the enthalpy of fusion.
The formula for the enthalpy of the fusion is;
[tex]\rm L_f=Q/m \\\\ L_f=mCdt/m \\\\ L_f= Cdt \\\\ L_f= 899 J/kg^0C \times (660^0-27^0) \\\\ L_f= 569,067 \ J \\\\\ L_f=569.067 \ kJ[/tex]
Hence, the minimum amount of heat needed to melt it to a liquid will be 569.067 kJ.
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On a space mission, the gravitational environment can negatively affect the bone density of astronauts. Which accommodation will most likely protect the bone health of the crew on a space mission?.
Answers
Answer:
a lot of oxygen with spacesuits
help me, i don't know the answer
Answers
Explanation:
1)
A) Bb BB
B) 50%
2)
A) 50%
B) b. b
B. Bb. Bb
b. bb. bb
At what time did time begin
50 points :)
Answers
Answer:
According to the standard big bang model of cosmology, time began together with the universe in a singularity approximately 14 billion years ago.
Explanation: the big bang
Answer:
approximately 14 billion years ago
Can someone please answer this, ill give you brainliest Would be very appreciated.
A decrease in the ice caps causes a(n) (options decrease, increase) in the absorption of sunlight. This causes the global temperature to (options rise, fall) causing more ice caps to melt. As more ice caps melt, the temperature (options rises, falls). This is an example of a (options negative, positive) feedback loop.
Answers
Answer:
See below ~
Explanation:
A decrease in the ice caps causes a(n) increase in the absorption of sunlight. This cause the global temperature to rise causing more ice caps to melt. As more ice caps melt, the temperature rises. This is an example of a negative feedback loop.
A decrease in the ice caps causes a(n) increase in the absorption of sunlight. This causes the global temperature to rise causing more ice caps to melt. As more ice caps melt, the temperature rises. This is an example of a negative feedback loop.
The options are followed by
IncreaseRiserisesnegativeA common practice for a person with a high fever is to take a bath in cool water. Assuming an 80 kg person is really ill and needs to cool down from 40°C to 37°C. What is the minimum amount of water needed for bathing assuming the water begins at room temperature, 25°C?
Answers
The minimum amount of water needed for bathing assuming the water begins at room temperature is 16.58kg.
What is thermal equilibrium?When two bodies at different temperature come into contact, they share the heat through conduction. After some time, temperature of both becomes equal. This condition is said to be a body in thermal equilibrium with other.
Heat gained by the water = heat lost by the ill person
m x Cw x ΔT = M x Cp x Δt
where, mass of person M = 80kg, Cp =specific heat of body =3470, specific heat of water Cw= 4186, then mass of water m will be
m x 4186 x (37-25) =- 80 x 3470 x (37-40)
m = 16.58kg
Thus, the mass of water needed is 16.58kg.
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What type of nuclear reaction is shown in the diagram below? Write 2 - 3 sentences describing what happens in this reaction, where it happens, and how the energy released can be harnessed for use in homes.
Answers
This happens at Sun 's inside
The process is called fusionThis denotes to
When two hydrogen nucleus combine to form a single helium nucleus.It releases lots of solar energy which can be used to create electricity
A 12 v battery produces a current of 25 amps. What is the resistance
Please help me
Answers
Answer:
The resistance is 2 ohms
Station A
? Arrival Time for P Wave
minu
? Arrival Time for 5 Wave
? S-P Lag Time (secs)
? Distance from Epicenter (km)
30
Station B
TIME(econd
Station B
? Arrival Time for P Wave
wwwwwwww
? Arrival Time for S Wave
? S-P Lag Time (secs)
? Distance from Epicenter (km)
30
TIME (second)
-Buon C
Station C
? Arrival Time for P Wave
10
призми мили
? Arrival Time for S Wave
? S-P Lag Time (secs)
100
300
200
Distance from Epicenter
? Distance from Epicenter (km)
90
TIME (second)
NOW: Use your information above to determine which earthquake these seismographs represent. Check the correct box!
90
2
8
8
*PART THREE:
MYSTERY EARTHQUAKE
/Mark the start of the P Wave AND S Wave
Find the Lag Time
Use the Lag Time Graph to determine each
Stations' distance to the epicenter.
Based on the Distances, choose which map
depicts your earthquake!
Graph
Lag time of S-wave behind P-wave
(seconds)
100 0
8
Nasme
8
Answers
how are the magnetic domains of a magnet different from the domains of an ordinary piece of metal?
Answers
In a magnet, the domains all point in the same direction; in an ordinary piece of metal, they're all jumbled up.
Explanation:
In a magnet, the domains all point toward the north pole; in an ordinary piece of metal, they all point to the south pole.
Side note:
Hope this helps!
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Why does Venus have the largest gravitational attraction to the sun compared to the other inner planets?Write your Claim below:
Answers
the force of gravity is proportional to the mass of an object and inversely proportional to the square of the distance between the objects.
The two principal sources for the internal heating of terrestrial planets are accretion and radioactivity. radiation and convection. convection and radioactivity. convection and accretion. accretion and eruption.
Answers
The three principal sources of internal heat of terrestrial planets accretion and radioactivity. Option A is correct.
What is heat transfer?The term "heat transfer" refers to the movement of heat. The flow of heat across a system's boundary is due to a temperature differential between the system and its surroundings.
The three principal sources of internal heat of terrestrial planets accretion and radioactivity.
Option A is correct.
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Can someone please answer this, ill give you brainliest Would be very appreciated.
Answers
Answer:
C. Surface tension
What property of water allowed the paperclip to stay on the top of the water?
Solution:Surface Tension
Explanation:The strong surface tension enables the paper clip float on the water, despite its much higher density which is caused by the cohesive forces between liquid molecules.
An airplane is flying in a horizontal circle at a speed of 490 km/h. If its wings are tilted at angle ɵ = 45° to the horizontal, what is the radius of the circle in which the plane is flying? Assume that the required force is provided entirely by an “aerodynamic lift” that is perpendicular to the wing surface.
Answers
The radius of the circle in which the plane is flying is 1887 m.
What is aerodynamic lift?The aerodynamic lift is the force that keeps the aircraft flying in the air.
Let the aerodynamic lift be F1 sinθ= mv^2/R ---- (1)
and F1 cosθ= mg --------- (2)
Equating (1) and (2) and eliminating the mass;
R = v^2/ g tanθ
Where v = 490 km/h or 136 m/s
R = (136)^2/9.8 * tan 45
R = 18496/ 9.8
R = 1887 m
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Show that the square of the period of revolution of a satellite is directly proportional to the cube of the orbital radius
Answers
Answer:
Explanation:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
Second choice
Explanation:
I suppose ME is the same as POTENTIAL energy
ME = mgh = 70 * 10 * 12 = 8400j
Half way down, 4200 j is converted to Kinetic Energy
1/2 m v^2 = 4200
1/2 (70) v^2 = 4200 v = 10.95 m/s
Just before impact ALL of the 8400 j is now KE
1/2 (70)v^2 = 8400 v = 15.49 m/s
50 POINTS! I PROMISE BRAINLIEST IF PLEASEEE I NEED HELP!
Answers
And Colin can see the Headteacher and Raj (Only by reflection in the mirror)
For this it’s best to draw a straight line from one person to another through the mirror, to see how light will reflect. Also because of the wall in the middle, Carolyn, Mike, Terry, and Alison can’t see the mirror, so no one can see them. Then you have to use deductive reasoning to see who can see who with the mirror.
Before you start your engine, __________ A. adjust the seat so you can reach all controls. B. make sure your car is in reverse or neutral gear before starting the engine. C. move your car before you have looked in front, behind and to the side for pedestrians and oncoming traffic. D. all of the above
Answers
Answer:
A. adjust the seat so you can reach all controls
------------------------------------------------------
This is so you can reach the gas petal, break petal, steering wheel, (and other things) easier so you won't have to lean forward and it makes it easier for when you're driving. Especially if you need to quickly press your breaks, you'll be able to do this a lot faster if you're closer to them than if you had to reach in order to do so.
I hope this helped, im not the best at explaining things lol
what is collinear and concurrent
Answers
Answer:
Collinear Force System: When the lines of action of all the forces of a system act along the same line, this force system is called collinear force system. Concurrent Force System: The forces when extended pass through a single point and the point is called point of concurrency.
A twirler’s baton is 0.76 m long and spins around its center. the end of the baton has a centripetal acceleration of 47.8 m/s2. how long does it take the baton to complete one spin? 0.31 s 0.56 s 4.3 s 70 s
Answers
The time it takes the baton to complete one spin is determined as 0.56 s.
Time of motion of the baton
The time of motion of the baton is calculated as follows;
a = 4π²R/T²
where;
R is radius of the wire = ¹/₂(0.76) = 0.38T² = 4π²R/a
T² = (4π² x 0.38)/47.8
T² = 0.3138
T = 0.56 s
Thus, the time it takes the baton to complete one spin is determined as 0.56 s.
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what could you do to increase the final momentum of a golf ball?
Answers
Answer:
I would hit it as hard as you can with the club.
Explanation:
well one thing that I like to do is hit the golf ball as hard as possible with the club.
This is because for me, when I do that, I can normally get more momentum which means I also get a farther hit.
you are designing an airport for small planes. one kind of airplane that might use this airfield must reach a speed before takeoff of at least 27.8m/s and can accelerate at 2.00m/s a)if the runway is 150m long,can this airplane reach the required speed for take off?(in this case v=24.5 m/s) b) if not, what minimum length must the runway have(193m)
Answers
(a)The required speed for take off will be 24.49 m/sec.
(b)The minimum length must the runway have 193 m.
What is speed?Speed is defined as the rate of change of the distance or the height attained. it is a time-based quantity. it is denoted by u for the initial speed while v for the final speed. its SI unit is m/sec.
(a)The required speed for take off will be 24.49 m/sec.
From the Newtons third equation of motion;
[tex]\rm v^2 = u^2+2as \\\\ v=0+2 \times 2 \times 150 \\\\ v=\sqrt{600}\\\\ v=24.49 \ m/sec[/tex]
Hence, the required speed for take off will be 24.49 m/sec.
(b)The minimum length must the runway have 193 m.
From the Newtons third equation of motion;
[tex]\rm v^2 = u^2+2as \\\\ (27.78)^2 = 0+2\times 2 s \\\\\ s=192.93 \ m[/tex]
Hence, the minimum length must the runway have 193 m.
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Question 19 of 20
Which force causes the protons in an atom to be attracted to one another?
OA. Strong nuclear
OB. Magnetic
OC. Weak nuclear
OD. Electric
Answers
The force that causes the protons in an atom to be attracted to one another is Strong nuclear.
What is nuclear force?Nuclear force is a force that acts between the protons and neutrons of atoms.
Neutrons and protons, both nucleons, are affected by the nuclear force almost identically and it is responsible for the attraction of protons in an atoms.
Thus, the force that causes the protons in an atom to be attracted to one another is Strong nuclear.
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density of water? And tin?
Answers
Answer:
the density of water is 1 and tin is 7.31 if i remember right
Explanation:
density of tin: 7.31
please help me with the question below the best answer with an explanation will get brainliest
Answers
Answer:
B
Explanation:
i hope this is correct.
The brightness of a star decreases by the square of the distance. This is known as:.
Answers
Answer:
inverse-square law.
Explanation:
Since the area increases as the square of the distance, the brightness of the light must decrease as the inverse square of the distance.
hope this helped you!
sound travels faster in air if the air temperature is:
Answers
Which is the last stage in the life cycle of an average star? (1 point)
A.white drawf
B.super red giant
C. planetary nebula
D.neutron star
Answers
Answer:
The answer is A. White Dwarf
Explanation:
average stars like sun end their life as white dwarf surrounded by disappearing planetary nebula.#2. If we have a 9V battery connected to a 100 resistor , what is the current ?
Answers
Answer:
90 mAmps
Explanation:
V=IR
V/R = I
9 v / 100 ohm = .09 amps = 90 mAmps
An oscillator makes 720 vibrations in 3 minutes.
A: How many vibrations does it make in one minute?
B: How many vibrations does it make in one second?
C: What is its period in seconds?
D: What is its frequency in hertz?
Answers
Answer:
Below :)
Explanation:
A) 720/3 =240. 40 per minute.
B) 720/180 = 4 per second.
C) T=1/4 s^-1 (the formula) = 1/4 s. (The time peroid.)
D) V=1/T
V= 4 Hz
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
An oscillator makes 720 vibrations in 3 minutes. so, we have to solve the given problems based on it ~
#1. what's the number of vibrations per minute •
[tex]\qquad \sf \dashrightarrow \: 3 \: min = 720 \: vib[/tex]
[tex]\qquad \sf \dashrightarrow \: 1 \: min = \dfrac{720}{3} [/tex]
[tex]\qquad \sf \dashrightarrow \: 1 \: min = 240 \: vib[/tex]
#2. Calculate unit vibrations per second •
[tex]\qquad \sf \dashrightarrow \: 1 \: min = 240 \: vib[/tex]
[tex]\qquad \sf \dashrightarrow \: 60 \: sec = 240 \: vib[/tex]
[tex]\qquad \sf \dashrightarrow \: 1 \: sec = 4 \: vib[/tex]
#3. What's it's time period •
time taken to do 1 vibration is known as a period, so we can infer that :
[tex]\qquad \sf \dashrightarrow \: 1 \: vib = \dfrac{1}{4} \: sec[/tex]
[tex]\qquad \sf \dashrightarrow \: t = 0.25 \: sec[/tex]
#4. what is it's frequency in hert •
[tex]\qquad \sf \dashrightarrow \: f = \dfrac{1}{t} [/tex]
[tex]\qquad \sf \dashrightarrow \: f = \dfrac{1}{0.25} [/tex]
[tex]\qquad \sf \dashrightarrow \: f = 4 \: hertz[/tex]