The relation between the volume of the gas and the temperature is established by Charles's law. With a decrease in the temperature, the volume decreases by 45.7 mL. Thus, option c is correct.
What is Charle's law?Charle's law states the direct relation present between the temperature and the volume of the gas. The law is given as:
V₁ ÷ T₁ = V₂ ÷ T₂
Given,
V₁ = 50 mL
T₁ = 303.15 K
T₂ = 277.15 K
Substituting the value the final volume is calculated as:
50 ÷ 303.15 = V₂ ÷ 277.15
V₂ = (50 × 277.15) ÷ 303.15
= 45.71 mL
Therefore, option c. 45.7 mL is the final volume.
Learn more about Charles law here:
https://brainly.com/question/16927784
#SPJ1
What is the concentration of hydronium and hydroxide ions in pure water at 25°c.
Explanation:
The concentration of hydronium and hydroxide ions are equal in pure water at 25 degree Celsius. Bringing the pH of pure water to be 7.Perform the following
mathematical operation, and
report the answer to the
correct number of significant
figures.
3.96 * 0.1159 = [?]
The answer to the problem 3.96 * 0.1159 is : 0.459 (3 significant figures)
Meaning of Significant figures and the rule of engagementSignificant figures can be defined as numbers in a group of numbers that place number in the right value or worth.
Significant figures defined the value of measurement of a particular number.
The rules of engagement in this case is the set of rules or laid down principles that direct how we interact with this significant figures and how they are used.
For this case the significant figures of the product will be the same as the figure with the least significant figure in the multiplication.
In conclusion, The answer to the problem 3.96 * 0.1159 is : 0.459 (3 significant figures)
Learn more about Significant figures : https://brainly.com/question/24491627
#SPJ1
After learning about climate change in her science class, selena wants to make a few changes at home so she can affect climate change in a small way. which changes will give her the best results?
Selena can change from burning fossil fuel in her home to using solar energy.
What causes climate changes?Climate change is caused by the release of the greenhouse gases which is gotten through the use and burning of fossil fuels such as coal.
The use of solar panels and solar energy by Selena in her house can help adjust the climate changes by decreasing the amount of greenhouse gases released into the atmosphere.
Learn more about greenhouse gases here:
https://brainly.com/question/20349818
#SPJ1
when 2 moles of C6H6 react with excess Oxygen gas, how many moles of water are produced?
C6H6 + 9 O2 ------> 6CO2 + 6 H20
Answer:
12 moles H₂O
Explanation:
To find the amount of water produced, you need to use the given amount and multiply it by the mole-to-mole ratio from the equation. These numbers are the coefficients of the molecules you are converting from and to. When writing the ratio, make sure to arrange it in a way that allows for the cancellation of units.
1 C₆H₆ + 9 O₂ ----> 6 CO₂ + 6 H₂O
2 moles C₆H₆ 6 moles H₂O
--------------------- x ------------------------- = 12 moles H₂O
1 mole C₆H₆
The solubility of sodium hydrogen carbonate in water 20 degrees is 9.6 g/100 g h2o.
what is the mole fraction of nahco3 in a saturated solution?
what is the molality of the solution?
We can see from the details below that, the value of the solution's molality is 1.14 mol/Kg.
What is solubility?The term solubility has to do with the quantity of solute that is able to dissolve in a given quantity of solvent. We have the solubility of the sodium hydrogen carbonate in water at 20 degrees as 9.6 g/100 g h2o.
Number of moles of sodium hydrogen carbonate = 9.6 g/84 g/mol = 0.114 moles
Number of moles water = 100 g /18 g/mol = 5.55 moles
Mole fraction of sodium hydrogen carbonate is obtainable by the use of the relation;
0.114 moles/0.114 moles + 5.55 moles
= 0.02
Molality of the solution = 0.114 moles/0.1 Kg = 1.14 mol/Kg
Learn more about solubility:https://brainly.com/question/8591226
#SPJ4
According to the law of definite proportions, if a sample of a compound contains 24.00 grams of carbon and 4.00 grams of hydrogen, then another sample of the same compound which contains 48.00 grams of carbon must contain ________. Group of answer choices
Answer: 8.00 grams
Explanation:
The ratio of carbon and hydrogen must be the same.
Which description best describes n in the ideal gas law equation? *
How hard the particles are pushing on something
How many particles of something there is
How hot/cold something is
How much space something takes up
8.3145 L kPa / K mol
Answer:
How Hot Or cold it is is how it may be perceived
Which is the electron configuration for zinc?
O 1s²2s²2p 3s²3p64s²3d³
O 1s22s22p 3s23p64s¹3d¹0
O 1s22s22p53s23p64s²3d¹0
O 1s²2s²2p 3s23p64s²3d¹0
The electronic configuration of zinc is expressed as [tex]1s^2 2s^2 2p^6 3s^2 3p^6 3d^{10} 4s^2[/tex]. Hence, option D is correct.
What is an electron configuration?Electronic configuration, also called electronic structure, is the arrangement of electrons in energy levels around an atomic nucleus.
The atomic number of zinc is 30 therefore The electronic configuration of zinc is expressed as [tex]1s^2 2s^2 2p^6 3s^2 3p^6 3d^{10} 4s^2[/tex].
In simpler form expressed as [Ar] [tex]3d^10 4s^2[/tex]. The electronic configuration shows the distribution of the electrons of an atom or a molecule.
Hence, option D is correct.
Learn more about the electron configuration here:
https://brainly.com/question/13497372
$SPJ1
In a simple distillation setup, what is the sequence of equipment from the bench top to the round bottom flask
In a simple distillation setup, the sequence of equipment from the bench top to the round bottom flask is:
ThermometerDistillation flaskLiebig condenserRound bottom flaskBunsen burnerWhat is Distillation?This is the process in which a mixture is separated through selective boiling and condensation.
The distillation flask and liebig condenser are usually located above the round bottom flask in the set up.
Read more about Distillation here https://brainly.com/question/24553469
#SPJ4
Which information must be known about a compound to find the molecular formula from the empirical formula?
Answer:
Empirical formulas can be determined from the percent composition of a compound. In order to determine its molecular formula, it is necessary to know the molar mass of the compound. Chemists use an instrument called a mass spectrometer to determine the molar mass of compounds.
hope this helps :3
What must happen for carbon dioxide to sublimate at a given pressure ?
Answer:
If the pressure is reduced on the solid carbon dioxide the temperature will drop and the liquid carbon dioxide will solidify into snow-like substance.
Explanation:
An air mattress is filled with 0.55 moles of air. the air inside the mattress has a temperature of 295 k and an absolute pressure of 3.5 kilopascals. what is the volume of the air mattress? the volume of the air mattress is liters.
The volume of the air mattress filled with 0.55 moles of air and has a temperature of 295 k and an absolute pressure of 3.5 kilopascals is 386L.
How to calculate volume?The volume of a gas can be calculated by using the ideal gas law equation as follows:
PV = nRT
Where;
P = pressureV = volumen = number of molesR = gas law constantT = temperature0.0345 × V = 0.55 × 0.0821 × 295
0.0345V = 13.32
V = 386L
Therefore, the volume of the air mattress filled with 0.55 moles of air and has a temperature of 295 k and an absolute pressure of 3.5 kilopascals is 386L.
Learn more about volume at: https://brainly.com/question/12357202
#SPJ1
Answer:
The answer is 34.2 L.
Explanation:
Ideal Gas Law = PV = nRT
(where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant, and T is the temperature in Kelvin.)
Plug in the known values into the Ideal Gas Law equation:
3.5 kPa * V = 0.55 moles * 8.31 J/mol*K * 295 K
Finally, solve for V:
V = (0.55 moles * 8.31 J/mol*K * 295 K) / 3.5 kPa
= 34.2 L
what are the different types of teeth explain
Answer:
Incisors: These are the teeth at the front of the mouth and the most visible ones when we smile. Bicuspids: Also called premolars, the bicuspids come after the canines and are flatter than the canines and incisors. Molars: At the back of your mouth, you'll find wide, flat molars.
Explanation:
give me a heart and star txs
Jupiter revolves around the sun in a predictable pattern because
compare molecular & covalent network crystal solid?
Answer:
Molecular solids and covalent network solids are two types of solid compounds. The key difference between molecular solid and covalent network solid is that molecular solid forms due to the action of Van der Waal forces where as covalent network solid forms due to the action of covalent chemical bonds.
hope this helps
why does the sloth have both a scientific name and common name
Which of the following atoms require the greatest amount of ionization energy? Cu, Ag, or Au
Ionization energy is the periodic property of an element. The copper atom has the highest ionization energy among gold and silver atom.
What is ionization energy?Ionization energy is the amount of energy required for the removal of the loosely bounded electron from an atom. The ionization energy can be first, second, and third based on the number of electrons.
Ionization energy down the group decreases from top to bottom as the atomic radii of the element increase. So, the ionization energy for the given elements is Cu > Au > Ag.
Therefore, copper has the highest ionization energy.
Learn more about ionization energy here:
https://brainly.com/question/14141553
#SPJ1
In[7.60x10-³] = In(5.63×10-2) - (k s¯¹)(480 s)
Answer:
I'm not understand that question
I'm so sorry
calculate the number of moles of nitrogen monoxide gas used to form 72.0 grams of water vapor.
4 moles of nitrogen monoxide gas used to form 72.0 grams of water vapor.
What is a mole ?A mole is the measurement unit which is used to correlate the molar mass with number of molecules present.
The equation for reaction of Nitrogen monoxide to form water vapor is given by
4NH₃ + 6NO ----> 5N₂ + 6H₂O
72 grams of water vapor means = 72/18 = 4 mole of water vapour
The mole fraction of NO to H₂O is 6 : 6
Therefore for 4 moles of water vapor formation , 4 moles of nitrogen monoxide will be required.
To know more about mole
https://brainly.com/question/26416088
#SPJ1
In this experiment, simple chemical reactions are used to generate small quantities of hydrogen and
oxygen gases. These methods would be too expensive and too complicated if large quantities of these
gases were needed, however. Use your textbook, a chemical encyclopedia, or an online source to look
up the major industrial methods of preparing very large quantities of these gases. Summarize your
findings here.
One of the industrial method for the production of hydrogen is the steam reforming process while oxygen is air separation.
Industrial method of hydrogen preparation
One of the industrial method for the production of hydrogen is the steam reforming process also known catalytic steam–hydrocarbon process.
In catalytic steam–hydrocarbon process, gaseous or vaporized hydrocarbons are treated with steam at high pressure over a nickel catalyst at 650°–950° C to produce carbon oxides and hydrogen.
Industrial method of oxygen preparationOne of the industrial method of oxygen production is the separation of air using either a cryogenic distillation process or a vacuum swing adsorption process.
Learn more about hydrogen production here: https://brainly.com/question/25597694
#SPJ1
Hereditary information is stored inside the
Answer:Hereditary information is contained in genes, located in the chromosomes of each cell. Each gene carries a single unit of information. An inherited trait of an individual can be determined by one or many genes, and a single gene can influence more than one trait.
Explanation:
Which two phase changes occur when you increase the heat?
Answer:
Heat going into a substance changes it from a solid to a liquid or a liquid to a gas. Removing heat from a substance changes a gas to a liquid or a liquid to a solid.
Liquid → Gas:
VaporizationGas → Liquid:
CondensationSolid → Liquid:
Melting or fusion
Solid → Gas: Sublimation
Explanation:
Determine the percentage composition of Ptl2
Answer:
Percent Composition
1. Find the molar mass of all the elements in the compound in grams per mole.
2. Find the molecular mass of the entire compound.
3. Divide the component's molar mass by the entire molecular mass.
4. You will now have a number between 0 and 1. Multiply it by 100% to get percent composition.
How do scientists answer questions?
OA. By making observations and performing experiments
OB. By listening to the ideas of others and choosing the best one
OC. By writing papers that support their opinions
OD. By reading reliable sources on the subject they are interested in
A chemist wishes to perform the following reaction: N2 + 3 H2 → 2 NH3 If only 14.0 g of N2 is available, what is the minimum amount, in grams, of H2 needed to completely react with this quantity of N2?
Answer:
3 grams
Explanation:
14 g of N2 is 1/2 mole
If you halve the N2 in the balanced equation , you have to halve the H2 down to 1.5 moles of H2 which is 3 grams
What is the molar mass of H₂CO₂?
Answer:
I think the Molar mass of H₂CO₂ should be 62..
Explanation:
I'm not too sure tho... Hope this helps!
350.0-mL of 0.50 M hydrogen sulfate solution is reacted with 15.0 grams of sodium hydroxide. What volume of water will be produced?
The volume of water that will be produced from the reaction will be 6.3 mL
Stoichiometric calculationFrom the equation of the reaction:
[tex]H_2SO_4 + 2NaOH --- > Na_2SO_4 + 2H_2O[/tex]
The mole ratio of hydrogen sulfate to sodium hydroxide is 1:2.
Mole of hydrogen sulfate = 0.50 x 350/1000 = 0.175 moles
Mole of 15 grams sodium hydroxide = 15/40 = 0.375 moles
Thus, hydrogen sulfide is the limiting reagent.
Mole ratio of hydrogen sulfide to water = 1:2.
Equivalent mole of water = 0.175 x 2 = 0.35 moles
Mass of 0.35 moles of water = 0.35 x 18 = 6.3 grams.
1 gram of water = 1 ml.
Thus, 6.3 grams of water will be equivalent to 6.3 mL
More on stoichiometric calculation can be found here: https://brainly.com/question/27287858
#SPJ1
Substance x is known to exist at 1 atm in the solid, liquid , or vapor phase, depending on the temperature. additionally, the values of these other properties of xhave been determined
Substance x is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the temperature, is mathematically given as
Q=800J.mol^{-1}
What is a graph of the other properties of x?Generally, the equation for heat absorbed is mathematically given as
Q= Heat capacity of solid *T
In conclusion,
Q= (40)(293.15-273.15)
Q=800J.mol^{-1}
In conclusion, Because the enthalpy of fusion is 9 KJmol-1 and we are only providing 6 KJmol-1 of heat, the melting process will not be complete. the graph is attached.
CQ
Substance x is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the temperature. additionally, the values of these other properties of x have been determined. show graph
Read more about Heat
https://brainly.com/question/13439286
#SPJ1
A catalyst ______. (select all that apply.) multiple select question. is depleted in a chemical reaction undergoes no permanent change during a reaction does not participate in a chemical reaction
The statements that are true regarding a catalyst are as follows:
It undergoes no permanent change during a reaction
It does not participate in a chemical reaction
What is a catalyst?
A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process.
A catalyst increases the rate at which a chemical reaction occurs by decreasing the activation energy of the reaction.
Since a catalyst is not used up in the reaction, the following statement applies:
It undergoes no permanent change during a reaction
It does not participate in a chemical reaction
Learn more about catalyst at:
#SPJ1
Calculate the energy of a photon of this light wave in joules. [Show all calculations, including the equation and substitution with units.]
The energy of the photon from the calculation performed is 3.5 * 10^-16 J.
What is a photon?A photon is a packet of light. It was derived from the theory of Albert Einstein. The energy of a photon is obtained from; E = hc/λ
h= Plank's constantc = speed of lightλ = wavelengthNow we have that;
E = 6.6 * 10^-34 * 3 * 10^8/562 * 10^-9
E = 3.5 * 10^-16 J
Missing parts:
Calculate the energy, in joules, of a photon of green light having a wavelength of 562nm?
Learn more about energy of photon:https://brainly.com/question/20912241
#SPJ1