At constant conditions, 1000 mL of the chlorine gas will be required to yield 1.00 L of dichlorine trioxide.
Stoichiometric equationFrom the equation of the reaction:
2Cl2(g)+3O2(g)→2Cl2O3(g)
Mole ratio of Cl2O3 and Cl2 = 1:1
At standard conditions, 1 mole of gas equals 22.4 L volume.
1.00 L of Cl2O3 would, therefore, be:
1 x 1/24 = 0.04 moles
Equivalent mole of Cl2 = 0.04 moles.
Thus, 1.00 L or 1000 mL of Cl2 will also be required.
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Indicate the compartment (A or B) that will increase in volume for each of the following pairs of solutions separated by a semi- permeable membrane: A B a. 20% (m/v) starch b. 10% (m/v) albumin c. 0.5% (m/v) sucrose 10% (m/v) starch 2% (m/v) albumin 5% (m/v) sucrose
Based on the concentration of the solutions, the increase in volume is as follows:
the volume of the 20% (m/v) starch increasesthe volume of the 10% (m/v) albumin increasesthe volume of the 5% (m/v) sucrose increasesWhat is osmosis?Osmosis is the movement of water molecules from a region of low solute concentration to a region of high solute concentration through a semipermeable membrane.
The movement of water molecules in the solution pairs is as follows:
the volume of the 20% (m/v) starch increases because water moves in from the 10% (m/v) starch solution.the volume of the 10% (m/v) albumin increases because water moves in from the 2% (m/v) albuminthe volume of the 5% (m/v) sucrose increases because water moves in from the 0.5% (m/v) sucrose.Therefore, the increase in volume depends on the concentration ofvthe solutions.
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Why critical thinking is important especially for chemists?
Answer:
Because chemists need to think outside the box for what they do, in other words, "science is not always black and white" which means science has color to it or many different aspects some of those which are not yet discovered and needs critical thinking chemists to figure out and discover.
Explanation:
(this was all in my own words and not actually cut and Paiste ○|￣|_ =3)
a.
Elements in the same group have similar chemical properties because
A.their atoms are about the same size.
b. they have a similar atomic mass.
c. they have the same number of valence electrons.
d. they have a diagonal relationship.
Answer:
c. they have the same number of valence electrons
. Why do you think bases are often described as the “opposites” of acids?
they simply don't have the same characteristics
Explanation:
An acid produces a hydroxonium ion as positive which is part of the reason why they are corrosive
Bases are less corrosive which is why they can neutralize an acid to give salt and water
4. What are the correct coefficients in order for the equation to be balanced?
Answer:
Li: 2
H2O: 2
LiOH: 2
H2: 1
Explanation:
Good luck
Task: Study the pictures above, Write at least five differences of active and inactive volcano based on the picture you've seen and observed above.
Answer:
Explanation:
1. There are fire and flashes at the top of an active volcano. No fire nor flashes for inactive volcano.
2. Smoke and debris come off an active volcano. No smoke nor debris from inactive volcano.
3. Magma flows from top of active volcano. No magma from inactive volcano.
4. There can be snow on top of inactive volcano. Active volcano is too hot for that.
5. There are plants and other wild lives around an inactive volcano.
Earth's rotation causes the Coriolis effect. What impact does the Coriolis effect have on global winds?
Answer:
The Earth's rotation means that we experience an apparent force known as the Coriolis force. This deflects the direction of the wind to the right in the northern hemisphere and to the left in the southern hemisphere.
Explanation:
What are the three RID factors?
Answer:
recognition, intrusion and distraction
Explanation:
7. Radial probability distributions for the 4s orbital of hydrogen has _______ peak(s). a. 0 b. 1 c. 2 d. 3 e. 4
Answer:
3
Explanation:
That's the answer
I hope it helps
Why The background of images seemed not same?
Answer:which pictures?
Explanation:show the pictures first
answer: time
Explanation:
well the clouds are moving and the time is different or the seasons also make the background different
helppppppppppp plssssssssa
[tex]\Large \text{1)}[/tex]
[tex]\textbf{Use the formula and substitute the values}[/tex]
[tex]\displaystyle 0.3\ mol/L = \frac{n \ mol}{10 \times 10^{-3}\ L}[/tex]
[tex]\textbf{Solve for the number of moles}[/tex]
[tex]n = 0.003\ mol[/tex]
[tex]\textbf{Calculate final volume }[/tex]
[tex]40+10=50\ mL[/tex]
[tex]\textbf{Number of moles remains same. Solve for concentration}[/tex]
[tex]\displaystyle C=\frac{0.003\ mol}{50 \times 10^{-3}\ L} =0.06\ mol/L[/tex]
[tex]\Large \text{2)}[/tex]
[tex]\displaystyle DF=\frac{V_f}{V_i}[/tex]
[tex]\displaystyle DF=\frac{50}{10}=5[/tex]
What is the average speed (actually the root-mean-square speed) of a neon atom at 27°C?
Answer:
432m/s
Explanation:
The rms speed (u) is related to the temperature (T) and molecular weight (M) by the expression
u=
M
3RT
u=
40×10
−3
kg/mol
3×8.314J/molK×(27+273.15)K
u=432.2m/s
Hence, the rms speed is 432.2 m/s
hope this is helpful
Propane molecular formula?
Answer:
The propane chemical structure, or chemical formula, is three carbon atoms branched with eight hydrogen atoms I.e C3H8
At which part of its orbit is the planet traveling at the slowest speed? :
A diagram showing the orbit of a planet around the sun. The planet passes through A to B, where it is farthest from the sun; the planet then passes through C to D, where it is closest to the sun.
A
B
C
D
Answer:
B. Because the planet travels slowly when it is far away from the sun
What is an indicator?
Hope it helps you!!
Which of the following statements is true?
A. Energy can be created, but not destroyed.
B. Some machines are 100 percent efficient.
C. Atomic energy can't be converted into electricity.
D. When work is done, some energy is always "lost" as heat.
Answer:
D
Explanation:
Heat sometimes gets "lost" when work is done
Carefully thinking about your choices and their consequences before making a decision shows _____.
Answer:
Decision making
Explanation:
A person who thinks before choosing is a person who makes decisions.
What are the correct coefficients in order for the equation to be balanced?
How many moles of Al2o3 will be formed when 27 grams of AL reacts completely with O2?
Answer:
0.52 mole
Explanation:
How many moles of Al2O3 will be formed when 27 grams of Al reacts with O2? Hence 0.78 mole of oygen react with Aluminium to give 0.52 mole of Al2O3.
What two things interact to affect development of color in some instances?
Answer:The colour and distribution of the organism's biochromes
Explanation:
The colour and distribution of the organism's biochromes (pigments), particularly the relative location of differently coloured areas; the shape, posture, position, and movement of the organism; and the quality and quantity of light striking the organism
1. A sample of methane gas collected at a pressure of 1.28 atm and a temperature of 29.0 degrees Celsius is found to occupy a volume of 27.6 liters. How many moles of CH4CH4 gas are in thesample?
Moles be n
[tex]\\ \rm\Rrightarrow PV=nRT[/tex]
[tex]\\ \rm\Rrightarrow n=\dfrac{PV}{RT}[/tex]
[tex]\\ \rm\Rrightarrow n=\dfrac{1.28(27.6)}{0.0821(302)}[/tex]
[tex]\\ \rm\Rrightarrow n=\dfrac{35.3}{24.8}[/tex]
[tex]\\ \rm\Rrightarrow n=1.42mol[/tex]
The number of moles of methane gas occupies in the given volume and pressure is 1.426 moles. It can be calculated using ideal gas law.
What is ideal gas law?Ideal gas law relates the parameters temperature, pressure, volume and number of moles of a gas by the equation given below:
PV = nRT.
Where, R is the universal gas constant equal to 0.082 L atm /(K .mol). This law is a combination of Boyle's law, Charles's law and Avogadro's law.
It is given that the pressure and volume of the gas is 1.28 atm and 27.6 liter respectively. Temperature is 29 degree celsius or 302 kelvin. Using these values the number of moles of methane gas is calculated as follows:
PV = nRT
n = PV/RT
Number of moles of methane n = (1.28 atm × 27.6 L) / ( 0.082 L atm /(K .mol) × 302 K )
= 1.426 moles.
Hence, the number of moles of methane gas in the given system is 1.426 moles.
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Movement of Ocean water
Choose ALL that apply
A. none of the choices
B. Surface water at the poles is dense because of low temperatures and high salinity.
C. Differences in the density of seawater cause it to move.
D. This water sinks and moves toward the equator where it replaces less dense, warm water.
Answer:
I would go with
B. Surface water at the poles is dense because of low temperatures and high salinity.
i could be wrong tho.
Explanation:
It's 32°F (0°C) outside under normal atmospheric conditions (1 atm) at a stunt
a
performer's birthday party. There is a huge blue balloon filled with flammable hydrogen
(H2, molar mass = 2.02 g/mol) gas that she plans to safely ignite, causing a massive
explosion. Inside the balloon is 239 g of H2(g).
What is the volume of the balloon, in liters? Round to the nearest whole number.
The volume of the balloon is approximately 2652 liters.
How to determine the volume occupied by the gas in a balloonLet suppose that flammable hydrogen behaves ideally. GIven the molar mass ([tex]M[/tex]), in kilograms per kilomole, and mass of the gas ([tex]m[/tex]), in kilograms. The volume occupied by the gas ([tex]V[/tex]), in cubic centimeters, is found by the equation of state for ideal gases:
[tex]V = \frac{m\cdot R_{u}\cdot T}{P\cdot M}[/tex] (1)
Where:
[tex]R_{u}[/tex] - Ideal gas constant, in kilopascal-cubic meters per kilomole-Kelvin.[tex]T[/tex] - Temperature, in Kelvin[tex]P[/tex] - Pressure, in kilopascalsIf we know that [tex]m = 0.239\,kg[/tex], [tex]R_{u} = 8.314\,\frac{kPa\cdot m^{3}}{kmol\cdot K}[/tex], [tex]T = 273.15\,K[/tex], [tex]P = 101.325\,kPa[/tex] and [tex]M = 2.02\,\frac{kg}{kmol}[/tex], then the volume of the balloon is:
[tex]V = \frac{(0.239\,kg)\cdot \left(8.314\,\frac{kPa\cdot m^{3}}{kmol\cdot K} \right)\cdot (273.15\,K)}{\left(101.325\,kPa\right)\cdot \left(2.02\,\frac{kg}{kmol} \right)}[/tex]
[tex]V = 2.652\,m^{3}[/tex] ([tex]2652\,L[/tex])
The volume of the balloon is approximately 2652 liters. [tex]\blacksquare[/tex]
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A chemical reaction yields 3 moles of lithium hydroxide (LiOH).
How many grams of lithium hydroxide are present?
3 g
24 g
48 g
72 g
Answer:
The mass of 1 mole LiOH has been 24 g. Thus, option D is correct.
The mass of a compound present in a mole of sample has been equivalent to the molar mass of the compound. The molar mass of the compound has been the sum of the constituent in a formula unit.
Explanation:
pls mark brainless i mean brainliest!
Answer: 24 g
Explanation:
If the phosphorus is present as phosphate ion (PO43-), how many moles of PO43- are present in 5.00 g of the 15-30-15 fertilizer?
A chemist determined by measurements that 0.085 moles of silver participated in a chemical reaction. Calculate the mass of silver that participated in the chemical reaction. Be sure your answer has the correct number of significant digits.
Answer:
9.16895 grams
Explanation:
cuz u have number of moles of silver which = 0.085
so u must know that molar mass of silver =107.87 g/mol
so the mass of silver = number of moles × molar mass =0.085×107.87= 9.16895 grams
How do scientists know how reconstruct a fossil?
Scientists will use the structure of existing animal as a model.
Each fossil piece fits together perfectly.
There are labels found in each of the fossil bones.
The location of each fragment found provides clues on how the animal looks.
A, Scientists will use the structure of existing animals as a model :)
Answer:
Scientists will use the structure of existing animal as a model.
Explanation:
-lukelaws
please mark me brainliest I need one more please!!!
A 50.0 mL sample of 12.0 M HCl is diluted to 200 mL. What is true about the diluted solution?
The concentration of the solution reduces and the number of moles of solute isn't affected.
Data;
V1 = 50mLC1 = 12.0MV2 = 200mLC2 = ?Facts about the diluted solution1. When the solution is diluted, the concentration changes and this time, the concentration reduces.
Using dilution formula
[tex]c_1 v_1 = c_2 v_2\\12 * 50 = c_2 * 200\\c_2 = \frac{600}{200} \\c_2 = 3M[/tex]
The concentration of the solution reduces.
2. The number of moles remains the same.
When a solution is diluted, the number of moles remains the same because there's no change in the mass of the solute.
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2. A closed system contains 2g of ice. Another 2g of ice are added to the system. What is the final
mass of the system?
Answer:
4
Explanation:
2+2=4
If 70.0g of manganese (IV) fluoride reacts with 70.0g ammonium sulfide, which reactant is
the limiting reactant and how many grams of the excess reactant is left over?
MnF_4(aq)+2(NH_4)_2S(aq)-> MnS_2(s)+4NH_4F(aq)
The limiting reactant would be the ammonium sulfide and the amount of the excess manganese (IV) fluoride would be 1.96 grams
Limiting reactantsFrom the equation of the reaction:
[tex]MnF_4(aq)+2(NH_4)_2S(aq)- > MnS_2(s)+4NH_4F(aq)[/tex]
The mole ratio of [tex]MnF_4[/tex] to [tex](NH_4)_2S[/tex] is 1:2
Mole of 70 g [tex]MnF_4[/tex] = 70/130.93
= 0.53 moles
Mole of 70 g [tex](NH_4)_2S[/tex] = 70/68.154
= 1.03 moles
Equivalent mole of [tex](NH_4)_2S[/tex] = 0.53 x 2
= 1.06 moles
Thus, [tex](NH_4)_2S[/tex] seems to be limiting while [tex]MnF_4[/tex] is in excess.
Excess [tex]MnF_4[/tex] = 0.53 - 1.03/2
= 0.015 mole
Mass of 0.015 mole [tex]MnF_4[/tex] = 0.015 x 130.93
= 1.96 grams
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