Answers
Explanation:
Hey there!
The volume of an object: The volume of a water displaced by the object.
So, at first we need to find the volume of a water displaced by the object.
On the first figure the initial volume of a water is 60.5ml . Similarly, in second figure when an object is immersed then its volume is 90ml.
Now, volume of a water displaced =?
We have;
Displaced volume = final volume - initial volume.
Or, displaced volume = (90 - 60.5) ml.
= 29.5ml.
As per the condition, volume of a water displaced by the object = volume of an object.
Therefore, the volume of an object is 29.5ml.
Hope it helps...
Related Questions
Assume we have 759 liters of N, at ST. What is the mass of the nitrogen gas? Give answers to the nearest whole number.
Answers
The mass of the nitrogen gas is approximately 949 grams.
What is the mass of the nitrogen gas?The mass of the nitrogen gas can be calculated using the ideal gas law, which states:
PV = nRT
Where P is the pressure, V is the volume, n is the number of moles of gas, R is the gas constant, and T is the temperature in Kelvin. R is the ideal gas constant ( 0.08206 Latm/molK )
Given thw volume of the Nitrogen gas to be 759l, at ST, temperature equals 273.15 K and pressure 1 atm.
we can rearrange the ideal gas law to solve for n:
PV = nRT
n = PV / RT
Plug in the values
n = ( 1 atm × 759 L ) / ( 0.08206 Latm/molK × 273.15 K )
n = 33.86 mol
Finally, we can calculate the mass of the nitrogen gas using the molar mass of nitrogen:
m = n × M
Where M = 28.02 g/mol is the molar mass of nitrogen.
m = 33.86 mol × 28.02 g/mol
m = 949 g
Therefore, the mass is 949 g.
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Which of the following is not a property of water?
1) Hydrogen bonding causes a high surface tension.
2) Hydrogen bonds exist only in the solid state.
3) Water can dissolve ionic and polar molecules.
4) Water's solid state is less dense than its liquid state.
Answers
Answer:
1
Explanation:
Hydrogen bonding causes a high surface tension
Hydrogen bonds existing only in the solid state refers to the false statement about water.
What is Water?This is a compound which consists of hydrogen and oxygen and is referred to as a universal solvent.
Its solid state is less dense than its liquid state and the hydrogen bonds exists in various states of matter thereby making option 2 the most appropriate choice.
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in ionic bonds will the alkaline earth metals lose or gain electrons, how many?
Answers
In ionic bonds, alkaline earth metals will lose two electrons to achieve a stable octet configuration.
Alkaline earth metals belong to Group 2 of the periodic table and have two valence electrons. They tend to lose these two electrons to achieve a stable electron configuration, forming ions with a +2 charge.
This is because alkaline earth metals have two valence electrons in their outermost shell, and losing these electrons will result in a full shell and a more stable configuration.
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if 6 moles of a a compound produce 84 J of energy, what is the h reaction in j/mol
Answers
The enthalpy of the reaction is 14 J/mol.
The enthalpy of a reaction (ΔH) is the amount of energy transferred between a system and its surroundings during a chemical reaction at constant pressure, measured in joules per mole (J/mol). This value is important because it can tell us whether a reaction is exothermic or endothermic, as well as give us information about the strength of chemical bonds within the reactants and products.To calculate the enthalpy of a reaction, we need to know the amount of energy released or absorbed (Q) and the number of moles of the compound involved in the reaction (n). We can use the equation:
ΔH = Q/n
Given that 6 moles of a compound produce 84 J of energy, we can calculate the enthalpy of the reaction as follows:
ΔH = Q/n
ΔH = 84 J / 6 mol
ΔH = 14 J/mol
This means that for every mole of the compound involved in the reaction, 14 J of energy is transferred between the system and the surroundings. Since the value is positive, we can conclude that the reaction is endothermic, meaning that it requires an input of energy to occur.It is worth noting that the enthalpy of a reaction can depend on a number of factors, such as temperature, pressure, and the specific conditions under which the reaction occurs. As such, it is important to take these factors into account when calculating or predicting enthalpy values.
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If a response is towards a stimulus it's described as _______; if a response is away from the stimulus it's described as _____.
Answers
Answer: Positive tropism, negative tropism
Explanation:
Stimulus can be define as external and internal agent which generate a response in an organism. If the growth and action is towards the stimulus it is called as positive tropism. If the growth and action is away from the stimulus it is called as negative tropism. Example, the growth of the stem towards the sunlight is called positive tropism whereas the growth of the root away from the sunlight is called negative tropism. Here, sunlight is the stimulus.
The point in a neutralization reaction where the number of moles of hydrogen ions is equal to the number of moles of hydroxide ions is called the ___________.
Answers
The point in a neutralization reaction where the number of moles of hydrogen ions is equal to the number of moles of hydroxide ions is called the equivalence point.
What is the equivalence point in a neutralization reaction?In a neutralization reaction between an acid and a base, the equivalence point is the point at which the acid and base have reacted in a stoichiometrically equivalent amount. This means that the number of moles of hydrogen ions from the acid is equal to the number of moles of hydroxide ions from the base. At the equivalence point, the solution is neutral and has a pH of 7.
The equivalence point can be determined experimentally by adding a solution of known concentration to the acid or base until the solution reaches a pH of 7. The equivalence point is an important concept in analytical chemistry, as it can be used to determine the concentration of an unknown solution.
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The reaction of iron (III) metal with a solution of copper (II) sulfate releases iron ions into the solution through a single displacement reaction.
a. Determine the moles of iron ions produced in this reaction.
b. Name a soluble compound that could be added to precipitate all of the iron ions from the solution.
c. What mass of the soluble compound from part (c) is required to precipitate all of the iron ions you determined in part (b)? HINTs: determine a new chemical reaction with your soluble compound Fe2(SO4)3. Then, use the moles of Fe2(SO4)3 calculated in part (b)
Answers
Answer:
. Name a soluble compound that could be added to precipitate all of the iron ions from the solution.
Sodium Hydroxide.
you were stranded on an island with your little brother or little sister and the only thing you have saved in your bag are a plastic envelope with two sheets of bond paper and a roll of sewing thread while waiting for somebody to rescue you how can you use that you materials to cheer up your brother
Answers
Answer:
well with that you can make a water maker that might make you brother happy because it will keep him alive
Explanation:
Answer:
you could sew a doll for him
or you could punch him in the face and tell him to cheer up
Explanation:
how many moles of calcium in 0.5 mole ca3(po4)2
Answers
There are 1.5 moles of calcium in 0.5 mole Ca3(PO4)2.
How to determine the number of moles of calcium in 0.5 mole Ca3(PO4)2First we need to first find the molar mass of Ca3(PO4)2:
Molar mass of Ca3(PO4)2 = (3 x molar mass of Ca) + (2 x molar mass of PO4)
= (3 x 40.08 g/mol) + (2 x (1 x 30.97 g/mol + 4 x 16.00 g/mol))
= 310.18 g/mol
Next, we can use the following mole ratio:
3 moles of Ca / 1 mole of Ca3(PO4)2
This means that for every 1 mole of Ca3(PO4)2, there are 3 moles of Ca.
Therefore, the number of moles of calcium in 0.5 mole Ca3(PO4)2 is:
0.5 mole Ca3(PO4)2 x (3 moles of Ca / 1 mole of Ca3(PO4)2) = 1.5 moles of Ca
Therefore, there are 1.5 moles of calcium in 0.5 mole Ca3(PO4)2.
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A helium neon laser emits light of wavelength 693 nm. a typical cabity for such a laser is 15 cm long. what is the mode?
Answers
The mode of the laser cavity is approximately 108.70.
To determine the mode of a laser cavity, we can use the formula:
Mode = L / (2 × d)
Where:
L is the length of the cavity
d is the wavelength of the emitted light
Given:
Length of the cavity (L) = 15 cm
Length of the cavity (L) = 0.15 m
Wavelength (d) = 693 nm
Wavelength (d) = 693 × 10⁻⁹ m
Plugging the values into the formula:
Mode = 0.15 m / (2 × 693 × 10⁻⁹ m)
Mode = 108.70
The mode of the laser cavity is approximately 108.70.
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How many moles of a gas sample are in a
20.0 L container at 373 K and 203 kPa? The gas constant is 8.31 L - kPa/mol -K.
0.33 mole
0.65 mole
1.30 moles
3.05 moles
Answers
The moles of the gas sample present is 1.30 , Option C is the right answer.
What is Ideal Gas Equation ?Ideal Gas Equation states that for an ideal gas , the product of pressure and volume is equal to the product of moles , universal gas constant and the temperature.
PV =nRT
Given in the question
Volume = 20 Litre
T = 373 K
P = 203kPa
R =8.31 L - kPa/mol -K.
Therefore
203 * 20 = n *8.31 *373
n = 1.30 moles
Therefore the moles of the gas sample present is 1.30 .
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A bottle is filled with a small amount of a volatile liquid and sealed. Sometime later it is observed that no liquid is evident in the sealed bottle. Which of the following statements would explain this observation? a. More time is needed to establish equilibrium. b. Liquid and vapor are at equilibrium in the bottle. c. Too little liquid was added to achieve a liquid vapor equilibrium in the closed system d. The vapor state is favored when equilibrium is established e. The liquid has undergone sublimation
Answers
The statement that would best explain the observation of no liquid being evident in the sealed bottle is: b. Liquid and vapor are at equilibrium in the bottle.
When liquid and vapor are at equilibrium in a closed system, it means that the rate of condensation (liquid turning into vapor) is equal to the rate of vaporization (vapor turning into liquid). In this case, it appears that all the liquid has vaporized, and no liquid is evident. This suggests that the liquid and vapor have reached a state of equilibrium, where the amount of liquid remaining is negligible compared to the amount of vapor present.
The vapor state is favored when equilibrium is established because the pressure exerted by the vapor phase reaches a point where it equals the vapor pressure of the liquid at that temperature. At this equilibrium point, no further net condensation or vaporization occurs, resulting in the absence of visible liquid in the sealed bottle.
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Nistu is cooking rice in a pot. When she leaves the pot on the stove for a while, the temperature of the rice increases. What happens to the molecules of the rice when the temperature of the rice increases?
Answers
Answer:
Their average kinetic energy increases
Explanation:
The average kinetic energy of the rice molecules increases as the pot is left on the cooking stove.
Heat is transferred to the pot by conduction from the heat source. The heat is then transferred to the rice in the cooking pot by convection.
As the water in the pot heats up. The rice gains thermal energy. This causes the molecules of the rice particles to start vibrating. As the molecules vibrate about their fixed position, their thermal energy continues to increase.Therefore, the amount of heat absorbed by the rice increases with time and this actually cooks the food.Answer:
The energy of the molecules in the rice increases.
Explanation:
In an electric current, the ___ particles flow or are pushed along a path
positive
negative
neutral
Answers
How many atoms are in 1.22 moles of magnesium?
Answers
Answer:
7.34684 × 10^23 atoms
Explanation:
Well, one mole is basically
6.022 × 10^23 atoms. So 1.22 moles would be
6.022 × 10^23 ⋅ 1.22 atoms.
6.022 × 10^23 ⋅ 1.22 = 7.34684 × 10^23 atoms
The total number of atoms in 1.22 moles of magnesium is 7.34 × 10²³.
One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions).The number 6.022 × 10²³ is known as Avogadro's number or Avogadro's constant.Given:
1.22 moles of magnesium
\(1 \text{ mole}= 6.022*10^{23}\text{ atoms}\\\\1.22 \text{ moles}= 1.22*6.022*10^{23}\text{ atoms}\\\\1.22 \text{ moles}=7.34*10^{23}\text{ atoms}\)
So, the total number of atoms in 1.22 moles of magnesium is 7.34 × 10²³.
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write a balanced reaction equation for the bromination of stilbene using pyridinium tri-bromide.find the limiting reagent in the following procedure.
Answers
The balanced reaction equation for the bromination of stilbene using pyridinium tribromide is: C14H12 + Br2 → C14H10Br2 In this reaction, stilbene (C14H12) reacts with bromine (Br2) to form dibromostilbene (C14H10Br2).
The balanced reaction equation for the bromination of stilbene using pyridinium tri-bromide is: Stilbene + 3 Br2 + Pyridinium tribromide → 2,3,4,5-tetrabromostilbene + Pyridinium bromide In the given procedure, the amount of stilbene is not mentioned, so we cannot determine the limiting reagent directly.
To find the limiting reagent in a given procedure, you will need to compare the stoichiometric ratios of the reactants to determine which one will be completely consumed first during the reaction.
To do this, you'll need the amounts (usually in moles or grams) of both stilbene and pyridinium tribromide used in the procedure.
However, we can assume that the amount of pyridinium tri-bromide is in excess, and the limiting reagent will be the reactant that is completely consumed first.
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someone help me with question pls
Answers
Explanation:
the conductors are the three u have checked
what’s the molecular formula of Xenon monoxide
Answers
Answer:
why
xy=gh
Explanation:
common science
What is the potential energy of a 2 kg rock sitting at the top of a 10 meter high cliff?
Answers
Answer:
im sorry im bored can we talk
Explanation:
lol
Marcy creates a model that compares elements and compounds. Her model is shown.
Which statement can Marcy support with her model?
An element is highly reactive, and a compound is stable.
An element can exist in any state, and a compound can only be liquid.
An element contains multiple substances, and a compound contains only one pure substance.
An element is made of a single type of atom, and a compound is made of two or more atom types.
Answers
Answer:
Explanation:
the asnwer is acceleratiin
A molecule of (BLANK)
gas has a single covalent bond
between the two atoms that it's comprised of. This allows
each atom to attain the electron configuration of the noble
gas helium.
Answers
Answer:
Hydrogen
Explanation:
The noble gas helium is found in the first period in the periodic table. The only element that is also in that period is hydrogen.
Now, helium has two electrons in its outermost shell. It is the first member among the noble gases.
Each hydrogen atom has only one electron. Therefore, when two hydrogen atoms are joined by a singe covalent bond to form hydrogen gas, each hydrogen atom now has two electrons thereby attaining the electronic configuration of helium, the nearest noble gas to hydrogen.
Số protein,số electron trong oxygen
Answers
Answer:
whatttttttttttttr//ttttt
I need helpppp pleaseeee!!
Answers
Answer:
Box#:
1:CoS
2:Co2S3
3:CoSO4
4:Co2(SO4)3
5:CoSO3
6:Co2(SO3)3
Explanation:
1:Co(II) is -2 and S is -2, so the charges cancel
2:Co(III) is -3 and is -2, so you cross the charges but do not reduce
3:Co(II) is -2 and SO4 is -2, so the charges cancel
4:Co(III) is -3 and SO4 is -2 so the charges cross but do not reduce
5:Co(II) is -2 and SO3 is -2 so the charges cancel
6:Co(III) is -3 and SO3 is -2 so the charges once again cross
Answer:
Cobalt (II) sulfide → CoS
Cobalt (III) sulfide → Co₂S₃
Cobalt (II) sulfate → CoSO₄
Cobalt (III) sulfate → Co₂(SO₄)₃
Cobalt (II) sulfite → CoSO₃
Cobalt (III) sulfite → Co₂(SO₃)₃
calculate the molecular weight of CaCO3.
Answers
Answer:
Explanation:
CaCO3 = 1*Ca + 1*C + 3*O
=1*40 + 1*12 + 3*16
=40 + 12 + 48
=100 amu
WRITE THE FORMULAS FOR THE COMPOUNDSCobalt(II) Bromide Heptahydrate
Answers
.ANSWER
\(\text{CoBr}_2.7H_{2_{}}O\)STEP-BY-STEP EXPLANATION
From the question given, you were asked to name a compound
Cobalt (II) Bromide Heptahydrate
The heptahydrate in the compound means it has 7 molecules of water
Therefore, the chemical formula can be written below as
\(\text{CoBr}_2.7H_2O\)Which of the following best describes a vacuum
Answers
Answer:
it sucks up stuff,cleans around the house,and can be emptied
Explanation:
because its what it is spose to do
Answer:
a space entirely devoid of matter.
Explanation:
We will now examine the patterns that exist for the ratios in which metal and nonmetal elements combine in order to learn more about patterns within this type of compound (between a metal and a nonmetal).
3. Write the formula and draw the particle diagram for each compound, given the two elements.
The ratio within each compound is given.
Answers
The right answer is given in the picture.
To find the formula of an ionic compound, first, identify the cation and write down its symbol and charge. Then identify the anion and note its sign and charge. Finally, the two ions combine to form an electrically neutral compound.
Particle diagram Elements and compounds can be represented using particle diagrams. This is a box with colored spheres drawn to represent atoms or molecules. These diagrams can represent elements and compounds and their molecular composition by the types of spheres and how they are connected. Particle diagrams are used to show particles, atoms, or molecules within matter. A diagram showing particles in a substance.
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Determine Laminar flow
Answers
Answer:
For practical purposes, if the Reynolds number is less than 2000, the flow is laminar. If it is greater than 3500, the flow is turbulent. Flows with Reynolds numbers between 2000 and 3500 are sometimes referred to as transitional flows.
Explanation:
Turbulence appears when the Reynolds number is about 2300. Reynolds number = (density * D * flow speed) / viscosity. Details of the calculation: Reynolds number = (1.25 kg/m3)*(0.1 m)*(35 m/s)/(1.83*10-5 N s/m2) = 2.39*105.
find the empirical formula for
42.05g of nitrogen, 95.95 of oxygen
and
7.33g of lanthanum, 2.96g of oxygen
Answers
Answer:
\(NO_2\) and \(La_2O_7\)
Explanation:
Nitrogen:
\(\frac{42.05}{14}=3\)
Oxygen:
\(\frac{95.95}{16}=6\)
Ratio:
\(3:6=1:2\)
So empirical formula becomes \(NO_2\)
-----
Lanthanum:
\(\frac{7.33}{139}=0.0527\)
Oxygen:
\(\frac{2.96}{16}=0.185\)
Ratio:
\(0.0527:0.185=1:3.5=2:7\)
So empirical formula becomes \(La_2O_7\)
HN Durante O=0=0 OSJEO How many Carbon atoms: How many Hydrogen atoms: How many Oxygen atoms: How many Nitrogen atoms: How many Sulfur atoms: How many Lone Pairs (unpaired electrons): What is formal charge: Viagra methylpiperazin-1-ylsulfonyl)phenyl)-1-methyl-3-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one
Answers
The molecular formula of Viagra, also known as Sildenafil, is C22H30N6O4S.
How many carbon, nitrogen, sulfur, and lone pairs are in Viagra?The number of Carbon atoms: There are 22 carbon atoms in Viagra.
The number of Hydrogen atoms: There are 30 hydrogen atoms in Viagra.
The number of Oxygen atoms: There are 4 oxygen atoms in Viagra.
The number of Nitrogen atoms: There are 6 nitrogen atoms in Viagra.
The number of Sulfur atoms: There is 1 sulfur atom in Viagra.
Lone pairs and formal charges are not applicable to entire molecules, but rather to individual atoms within the molecule. To determine the formal charge of an atom in a molecule, you would need to analyze the Lewis structure of the molecule. The structure of Viagra is quite complex, so it's beyond the scope of this answer to analyze the formal charges and lone pairs for each individual atom.
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