Explanation:
Given that,
Initial volume, V₁ = 4.40 L
Initial pressure, P₁ = 2.6 atm
(a) Final pressure, P₂ = 6.2 atm
As per the relation,
[tex]P_1V_1=P_2V_2\\\\V_2=\dfrac{P_1V_1}{P_2}\\\\V_2=\dfrac{2.6\times 4.4}{6.2}\\\\V_2=1.84\ L[/tex]
(b) Again using the above relation,
[tex]P_2=\dfrac{P_1V_1}{V_2}\\\\P_2=\dfrac{2.6\times 4.4}{0.0290 }\\\\P_2=394.48\ atm[/tex]
Hence, this is the required ssolution.
What type of forces allow for an object to stay at rest or continue at constant velocity.
Answer:Inertia is the property of a body to remain at rest or to remain in motion with constant velocity. Some objects have more inertia than others because the inertia of an object is equivalent to its mass.
Explanation:
Answer:
Inertia
Explanation:
Inertia is the property of a body to remain at rest or to remain in motion with constant velocity.
Which of these is a common base?
a. orange juice
b. water
c. ammonia
d. milk of magnesia
Answer:
ammonia is a common base
What volume in
L
of a 0.724 M Nal solution contains 0.405 mol of Nal ?
Answer:
[tex]0.5594\ \text{L}[/tex]
Explanation:
Mol of NaI = 0.405 mol
Molarity of solution = 0.724 M
Molarity is given by
[tex]M=\dfrac{\text{mol}}{\text{Volume of solution in }NaI}\\\Rightarrow \text{Volume of solution in }NaI=\dfrac{0.405}{0.724}\\\Rightarrow \text{Volume of solution in }NaI=0.5594\ \text{L}[/tex]
The required volume is [tex]0.5594\ \text{L}[/tex].
What is the formula for the ionic compound made up of the ions Cd+3 and SO4-2?
Answer: since the sodium ion is Na+, and sulfate is SO4(2-), you'll need 2 sodiums for a sulfate, making sodium sulfate Na2SO4.
Explanation:
Rubbing alcohol is 70.% (v/v) isopropyl alcohol by volume. How many mL of isopropyl alcohol are in a 1 pint (473 mL) container? Rubbing alcohol is 70.% (v/v) isopropyl alcohol by volume. How many mL of isopropyl alcohol are in a 1 pint (473 mL) container? 330 mL 470 mL 70. mL 680 mL 0.15 mL
Answer:
helped
The number of ml of isopropyl alcohol that are 1 pint (473 Ml) is 331.1 Ml
calculation
assume that the 1 pint is in a container
This implies that the 1 pint (473 ml) is in 100 % M/V
what about 70 %(M/V)
that is 473 Ml = 100 %
? = 70 %
by cross multiplication
= 473 x70/100 = 331.1 Ml
Explanation:
An electrical circuit has a resistance of 20 ohms and a current of 0.05A. What voltage is applied in this circuit?
Answer:
1 volt
Explanation:
Use Ohm's Law:
V = IR
V = (0.05A)(20 ohms) = 1 volt
An electrical circuit has a resistance of 20 ohms and a current of 0.05A. The voltage is applied in this circuit is 1 volt.
What is Ohm's Law ?Ohm's Law states that the current in a circuit is equal to the potential difference divided by the resistance of the circuit. It is represented by V = IR, where V is the voltage difference, I is the current in amperes, and R is the resistance in ohms.
The law can be used to perform calculations such as determining the value of resistors or current in a circuit, or measuring voltage. Furthermore, Ohm's law assists us in describing how current flows through materials such as electrical wires, etc.
By using Ohm's Law we get,
V = IR
V = (0.05A)(20 ohms)
= 1 volt
Thus, The voltage is applied in this circuit is 1 volt.
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Why wouldn’t you use Avogadro’s number to change 32.4 grams of Lithium into moles of Lithium?
2. A spider builds his web in the horns of a deer. What is the symbiotic
relationship?
I point
O MUTUALISM
COMMENSALISM
PARASITISM
O Other
Answer:
COMMENSALISM
Explanation:
Commensalism refers to the relationship that exists between two different organism that belong to different species. In this relationship neither of the organisms are harmed while either of them is benefitted. The web made by the spider between the horns of the deer increases the probability of the spider to catch its prey. The random movement of the deer helps the spider and at the same time it do not harm the deer.
Imagine you followed all steps correctly, with multiple attempts, and found that the purity of recombinant DHFR isolated through IMAC was not good enough. Hypothesize two changes to the procedure or experimental design that you could consider trying next to increase the purity of our DHFR sample and why you anticipate each to increase protein purity. (5pt)
Answer:
fcgvgbjbbbh,bbb bbnnnnmnbb nbmm m cccg n mm
Explanation:
What is depicted in a molecule formula
Answer:
Molecular formulas describe the exact number and type of atoms in a single molecule of a compound. The constituent elements are represented by their chemical symbols, and the number of atoms of each element present in each molecule is shown as a subscript following that element's symbol
Which is a difference between the trade winds and the polar easterlies?
Answer: The trade winds blow in the Northern Hemisphere, and the polar easterlies blow in the Southern Hemisphere
Explanation: hope this helps :)
Answer:When air moves in a definite direction, it is called wind. If the winds move from west to east, they are called westerlies. If they move from east to west, they are called easterlies. ... The direction of wind is also affected by coriolis affect.
Explanation:
Which blood vessels carry blood away from the heart?
veins
arteries
capillaries
Answer:
Arteries
Explanation:
Answer: arteries. :)
Explanation:
the top one is right trust me and i took the test. :)
have agreat day. :)
What does purified water and fluorine make?
Answer:
Adding fluoride to the water supply reduces the incidence of tooth decay. Fluoride protects teeth from decay by demineralization and remineralization. Too much fluoride can lead to dental fluorosis or skeletal fluorosis, which can damage bones and joints.
Explanation:
N/A
Once the energy gets transferred to heat energy, is it reversible or irreversible?
Four flasks each contain 100 milliliters of aqueous solutions of equal concentrations at 25°C and 1 atm.
KCI
CH3OH
Ba(OH)2
CH3COOH
Which solutions contain electrolytes?
Answer:
KCl and Ba(OH)₂.
Explanation:
Hello there!
In this case, since electrolytes are substances characterized by presence of covalent bonds between the atoms forming the compound, it is possible to realize that just KCl and Ba(OH)₂ as they are species composed by cations (K and Ba) and anions (OH and Cl); therefore, they have the capacity to get ionized in aqueous solution and thus transfer electricity when present.
Best regards!
The solution containing electrolytes is the flask of KCI and [tex]Ba(OH)_2[/tex].
The correct options are a and c.
What is an electrolyte?An electrolyte is a medium that contains ions and conducts electricity through the movement of ions, but not electrons.
They are minerals present in the body, that are electrically charged.
Electrolytes help in maintaining the water balance in the body, and pH of the body.
The three primary electrolytes are sodium, potassium, and chloride.
Thus, the correct options are a, KCI, and b, [tex]Ba(OH)_2[/tex].
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What is the mass in grams of
1.0mole of (NH4)2S?
What is the income effect?
Answer:
Explanation:
the income effect is the change in demand for a good or service caused by a change in a consumer's purchasing power resulting from a change in real income. This change can be the result of a rise in wages etc., or because existing income is freed up by a decrease or increase in the price of a good that money is being spent on.
Answer: a proportional change in quantity demanded based on income
Explanation:
8) All of the following statements are true except ________. A) Internal energy is a state function. B) The enthalpy change for a reaction is equal in magnitude, but opposite in sign, to the enthalpy change for the reverse reaction. C) The enthalpy change for a reaction depends on the state of the reactants and products. D) The enthalpy of a reaction is equal to the heat of the reaction. E) Enthalpy is an intensive property.
Answer:
E. Enthalpy is an intensive property Is false.
Explanation:
The false or wrong option in this question is that Enthalpy is an intensive property.
To explain this, I would first explain an intensive property. An intensive property is one that does not depend on the quantity or the mass of matter. Examples are temperature and pressure.
But an extensive property is a property which depends on the mass and the quantity of the system. Enthalpy, volume are all extensive.
4pts)Would it make any difference if the methylene chloride solutioncontaining both thebasicand neutral components waswashed with 1Msodium hydroxiderather than 1Mhydrochloric acid? If so,what would that difference be? Would any layer separation bepossible in the new solution? Would it be possible to isolate the two components from oneanother using 1Msodium hydroxiderather than 1Mhydrochloric acid?Why or why not?Provide a balanced equation to justify your answer
Answer:
Explanation:
No, it is preposterous and possible to expect or to disengage and isolate a basic and neutral compound by 1M NaOH in DCM. Since neutral compounds do not react with NaOH, and NaOH itself is a base so it can't react with another base to yield salt. For that reason, we just need a corrosive element i.e an acid.
So; In DCM, we can't utilize 1M NaOH rather than 1M HCI for isolation and detachment of neutral and basic compounds.
Rank the following species in order of increasing basicity. NH3, NH4 , NH2-, Cl-,H2O.
a. NH3
b. NH4
c. NH2
d. Cl-
e. H2O
Answer:
D, E, A, B, C
Explanation:
The weakest base would be Cl- because HCl is a stronger acid than that of H3O+ from which the water is formed.
Also, for NH3 is a stronger acid than +NH4. Reason is that oxygen is more electronegative than nitrogen and thus NH3 is a stronger acid than NH4+.
The stronger, the acid, the weaker its conjugate base. Thus, NH3 is a weaker base than NH4.
NH2- has the highest basicity because nitrogen is less of an electronegative element than is oxygen. Therefore, it will not want a negative charge.
Hence, the final order in terms of increasing basicity is;
Cl-, H20, NH3, NH4, NH2-
How many atoms are in a 591 g sample of gold?
116,000 atoms
1.81 × 1024 atoms
3.00 atoms
3.60 × 1025 atoms
The number of atoms present in 591 g of gold is 1.81×10²⁴ atoms
Avogadro's hypothesisFrom Avogadro's hypothesis,
1 mole of Gold = 6.02×10²³ atoms
But
1 mole of gold = 197 g
Thus,
197 g of gold = 6.02×10²³ atoms
How to determine the atoms in 591 g of gold197 g of gold = 6.02×10²³ atoms
Therefore,
591 g of gold = (591 × 6.02×10²³) / 197
591 g of gold = 1.81×10²⁴ atoms
Thus, 1.81×10²⁴ atoms is present in 591 g of gold.
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Which of the following statements is NOT true?
An element and a compound are pure substances.
A homogeneous mixture can be called a solution.
An element and a compound are mixtures.
A homogeneous mixture and a heterogeneous mixture can both be classified as mixtures.
Answer:
An element and a compound are mixtures.name this structure
Answer:
where is the structure the picture
Explanation:
???
In which atmospheric layer is the ozone layer? O stratosphere o thermosphere O mesosphere troposphere
Answer:
The stratosphere
Explanation:
A key process common to all organisms is the ability to reproduce. Where do all cells come from?
A. from ova
B. from atoms
C. from gametes
D. from pre-existing cells
Answer:
It’s d
Explanation:
It’s d 100%
Which color of visible light has the highest energy?
Blue
Red
Green
Yellow
Answer:
Blue: Because violet really has the most and blue is based on violet!
Explanation:
Hope this helps! Plz mark as brainliest!
As a raindrop falls from a cloud to the surface of Earth,
A. its speed increases due to gravity.
B. its speed increases due to air resistance,
C. it moves at a constant speed,
<
OD. it moves at a constant velocity
Answer:
The answer is C!
Explanation:
Hope it helps
Answer D
Explanation: did the quiz ψ(｀∇´)ψ
A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs out 32.mg of oxalic acid H2C2O4, a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in 250.mL of distilled water. The student then titrates the oxalic acid solution with his sodium hydroxide solution. When the titration reaches the equivalence point, the student finds he has used 60.9mL of sodium hydroxide solution. Calculate the molarity of the student's sodium hydroxide solution. Round your answer to 2 significant digits. M
Answer:
0.012 M
Explanation:
The reaction that takes place is:
H₂C₂O₄ + 2NaOH → Na₂C₂O₄ + 2H₂OFirst we convert 32 mg of H₂C₂O₄ to moles, using its molar mass:
32 mg ÷ 90 mg/mmol = 0.36 mmolThen we calculate how many NaOH moles would react with that amount, using the stoichiometric coefficients:
0.36 mmol H₂C₂O₄ * [tex]\frac{2mmolNaOH}{1mmolH_2C_2O_4}[/tex] = 0.72 mmol NaOHFinally we divide NaOH moles by the used volume, to calculate the molarity:
0.72 mmol NaOH / 60.9 mL = 0.012 Mwhen a small amount of hydrogen gas mixes with nitrogen gas, hydrogen is the
Answer:
solvent
Explanation:
How many protons are in Cesium-135 (Cs)?
A. 35
B. 55
C. 80
D. 195