Answer:
166.04g
Explanation:
Mass=Moles xRMM
1 mole = 6.023 x10^23molecules
5.0 x10^25molecules
=83.02moles
RMM=2
mass=83.02 x2
and=166.04g
100 pointts pls answer quick and no link :In the reaction, Hydrogen + Iodine --> Hydrogen Iodide at equilibrium, some Iodine is is added. What happens to the equilibrium?
Answer:
the concentration of hydrogen iodide will be higher than it was in the original equilibrium conditions.
PLEASE HELP!! ASAP WILL GIVE BRAILIST (please explain how you got there or show a picture of work)
a) Write the word equation for the reaction of silver chlorate reacts with sodium phosphate to produce silver phosphate and sodium chlorate.
b) Write the balanced formula equation for this reaction.
c) If 287 g of silver chlorate reacts with 52.8 g of sodium phosphate, what is the maximum number of grams mass of silver phosphate will be produced?
d) Identify which reactant is the limiting reactant and which is the excess reactant.
e) How many grams of the excess reactant reacts and how many grams are left over?
Answer:
See Explanation
Explanation:
a) The word equation is;
silver chlorate + sodium phosphate ------> silver phosphate + sodium chlorate
b) The balanced reaction equation of the reaction is;
3AgClO3(aq) + Na3PO4(aq) ------->Ag3PO4(s) + 3NaClO3(aq)
c) amount of silver chlorate reacted = 287 g/191.319 g/mol = 1.5 moles
3 moles of silver chlorate yields 1 mole of silver phosphate
1.5 moles of silver chlorate yields 1.5 * 1/3 = 0.5 moles of silver phosphate
Amount of sodium phosphate reacted = 52.8 g/163.94 g/mol = 0.3 moles
1 mole of sodium phosphate yields 1 mole of silver phosphate
0.3 moles of sodium phosphate yields 0.3 moles of silver phosphate.
Hence the maximum number of grams mass of silver phosphate produced = 0.3 moles * 418.58 g/mol = 125.6 g
d) The excess reactant is silver chlorate while the limiting reactant is sodium phosphate
e) 3 moles of silver chlorate reacts with 1 mole of sodium phosphate
x moles of silver chlorate reacts with 0.3 moles of sodium phosphate
x = 3 * 0.3 = 0.9 moles of silver chlorate reacted
Mass of 0.9 moles of silver chlorate = 0.9 moles * 191.319 g/mol = 172 g of silver chlorate
Hence mass of silver chlorate left over = 287 g - 172 g = 115 g
How is chemical equilibrium achieved?
Question 15 options:
When the concentrations of reactants and products are constantly changing.
When the concentrations of reactants and products are constant.
When the concentrations favor the reactants.
When the concentrations favor the products.
Answer:
Explanation:
Equilibrium is achieved in a chemical reaction when there is a steady state with no change in concentrations.
So the answer is "When the concentrations of reactants and products are constant."
If I plant a green bean seed in the desert, will it grow thick, barrel-shaped stems full of water like a cactus? Why or why not?
Answer:
No, although the bean crop can grow perfectly in full sun or a little shade in very warm places. It does not mean that they will adopt the growth patterns of the cactus, especially because this plant needs constant watering (in small quantities), very constant. Beans require good drainage for their growth.
Each vegetation have its own characteristics and the power of adaptation. A green bean cannot survive in a desert like a cactus in desert without water. It can only grow thick in soil with proper water content and nutrients.
What is cactus?Cactus is a type of plant grow in dry regions such as deserts. It can adapt in deserts without water for long time because, the plant have enough water storage in its stem.
Domestic vegetation such as bean, pea, nuts etc ill not grow in dry regions because they cannot adapt in deserts without water. The soil in deserts is dry and have no nutrients.
These conditions prevent the growth of vegetables in desert areas. Moreover, desert have summer season only. The extreme temperature over there will cause the normal plants to diminish.
Therefore, planting green bean in deserts will not make it grow thick like a cactus plant.
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Valerie creates a model using three different rocks. The rocks are classified as igneous, metamorphic, and sedimentary.
Which property does Valerie use for classification purposes?
color
formation
shape
texture
The rocks are classified as igneous, metamorphic, and sedimentary use the formation for classification purposes.
What are the 3 types of rocks existing on earth?The outermost of them, called the crust, is composed of three types of rocks: magmatic, sedimentary and metamorphic. They are defined through the origin of several minerals and can be characterized with chemical composition, texture or shape, but the most used specification is based on composition.
The property does Valerie use for classification purposes is formation.
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At 35.0°C and 3.00 atm pressure, a gas has a volume of 1.40 L. What pressure does the gas have at 0.00°C and a volume of 0.950 L? Which equation should you use? P subscript 2 equals StartFraction P subscript 1 V subscript 1 T subscript 2 over T subscript 1 V subscript 2 EndFraction. P subscript 2 equals StartFraction T subscript 1 V subscript 2 over P subscript 1 V subscript 1 T subscript 2 EndFraction. P subscript 2 StartFraction equals V subscript 1 V subscript 2 over T subscript 1 T subscript 2 EndFraction P subscript 1.
Answer:
a
3.92
Explanation:
15.00 g aluminum sulfide and 10.00 g water react until the limiting reagent is used up. Here is the balanced equation for the reaction: ALS3 + 6 H2O ---> 2Al(OH)3 + 3 H2S (A) Which is the limiting reagent? (B) What is the maximum mass of H2S which can be formed from these reagents? (C) How many grams of the excess reactant will remain?
Answer:
A. it's H20
B. mH2O=17g
C. m Al(OH)3= 39g
m AlS3 = 6.15
1. The respiratory system depends on the nervous system for signals to:
Answer:transfer oxygen through your blood
Explanation:
Answer:
coordinate the muscles that control breathing
hope this helps ⭐
The total pressure of all the gases inside a metal container is 9.8 atm. If the partial pressure of the oxygen in the container is 4.2 atm, what is the partial pressure of the rest of the gases in the container other than the oxygen?
5.6 atm is the partial pressure of the rest of the gases in the container other than the oxygen.
What is partial pressure?Each gas in a mixture adds to the overall pressure of a mixture. This portion represents the pressure. The pressure a gas would have if it were in its own volume and at its own temperature is known as the partial pressure. According to Dalton's law, the pressure distribution of an ideal gas mixture is equal to the combined partial pressures of the component gases.
The study of partial pressure is significant in the domains of physics, chemistry, and biology. The partial pressure of oxygen or carbon dioxide in the blood is used to calculate blood levels of each substance. The overall pressure in a container is equal to the sum of the partial pressures. The remaining gases must make up the remaining 5.6 atm if the oxygen partial pressure equals 4.2 atm and the sun reaches 9.8 atm in pressure.
Therefore, 5.6 atm is the partial pressure of the rest of the gases in the container other than the oxygen.
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An aqueous solution has a hydroxide-ion concentration of 1.0x10^-3M. What is the pH of the solution?
a.11
b.3
c.-3
d.7
Which organelle stores the information that determines an individual blood type
Answer:organelle 1
Explanation:
Organulo 1 is the organelle that stores the information that determines an individual blood type. The correct option is option A.
What is organelle?A tiny cellular component known as an organelle serves a specialised purpose within a cell. The cytoplasm of prokaryotic and eukaryotic cells contains organelles. Organelles are frequently encased by a separate membrane in eukaryotic cells because they are more complicated.
Similar to the internal organs of the body, organelles are specialised and carry out important tasks required for proper cellular function. Organelles are responsible for a variety of tasks, such as powering a cell's energy needs and regulating its development and reproduction. Organulo 1 is the organelle that stores the information that determines an individual blood type.
Therefore, Organulo 1 is the organelle that stores the information that determines an individual blood type. The correct option is option A.
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Your question is incomplete but most probably your full question was,
A sample of gas as a volume of 425 mL at 25°C at and 760 tour what volume with this gas sample have at STP
Answer:
[tex]\Rightarrow V_2 = 389mL[/tex]
Explanation:
To solve this question, we could use Charles' law since both the number of mole and pressure are constant
At STP pressure P = 760 tor and Temperature = 273K
V1 =425mL, T1 =298K and T2 =273K
and [tex]\frac{V_1}{T_1} =\frac{V_2}{T_2}[/tex]
[tex]\Rightarrow V_2 =T_2\times\frac{V_1}{T_1}[/tex]
[tex]\Rightarrow V_2 =273\times\frac{425}{298}[/tex]
Therefore, [tex]\Rightarrow V_2 = 389mL[/tex]
What happens to the pH of the solution as you add more substance to it?
Answer:
If it's a buffer solution, the pH remains unchanged.
If it's a normal solution, and an acidic substance is added to it, the pH lowers.
If a basic substance is added to it, the pH increases.
In balancing a chemical equation, which of the following are you allowed to do?
A) change coeffecients
B) change superscripts
C) change subscripts
D) add new substances
Answer:
Change Coefficients
Thank you
Why must a special saw be used when removing a cast?
A. Because it is very painful to have a cast removed.
B. Because a cast is made of material that requires a special saw.
C. Because a regular saw is not strong enough to cut the cast.
D. Because a regular saw might cut a person’s skin.
Given the following data set, calculate the unknown quantity.
P= 1.23 mmHg atm, V=? kL, n= .773 mol, T= 152 °C
Answer:
V ≈ 16,662.63 L
Explanation:
The data given in the question includes;
The pressure in the medium, P = 1.23 mmHg
The number of moles of the substance present in the medium, n = 0.773 mol
The temperature of the substance in the medium, T = 152 °C = 425.15 K
The unknown quantity, V = The volume filled by the substance
The ideal gas law equation that can be used to find the unknown volume is given here as follows;
P × V = n × R × T
Where;
R = The Universal Gas Constant = 62.363 mmHg·L·mol⁻¹·K⁻¹
From the ideal gas law equation, we get;
V = n × R × T/P
Plugging in the values, gives;
V = 0.773 mol × 62.363 mmHg·L·mol⁻¹·K⁻¹ × 425.15 K/(1.23 mmHg) = 16,662.6305405 L
The volume occupied, which is the unknown quantity, V ≈ 16,662.63 L.
Who are the scientists that contributed in arranging of the periodic table?
Necesito su nomenclatura UIQPA
Answer:
3,3 Methyl hexyne
I hope it's helps you
Can someone please write this in y’all’s own words please and I’ll give you branly
Answer: we can make our own water and not take any water from animal.
Explanation:
A child has a toy balloon with a volume of 1.75 liters. The temperature of the
balloon when it was filled was 21° C and the pressure was 1.00 atm. If the child
were to let go of the balloon and it rose 3 kilometers into the sky where the
pressure is 0.65 atm and the temperature is -10°C, what would the new volume
of the balloon be?
Answer:
2.41 Litres
Explanation:
Using the combined gas law equation as follows;
P1V1/T1 = P2V2/T2
Where;
P1 = initial pressure (atm)
P2 = final pressure (atm)
V1 = initial volume (L)
V2 = final volume (L)
T1 = initial temperature (K)
T2 = final temperature (K)
According to the information provided in this question;
P1 = 1 atm
P2 = 0.65 atm
V1 = 1.75 liters
V2 = ?
T1 = 21°C = 21 + 273 = 294 K
T2 = -10°C = -10 + 273 = 263 K
Using P1V1/T1 = P2V2/T2
1 × 1.75/294 = 0.65 × V2/263
1.75/294 = 0.65V2/263
Cross multiply
294 × 0.65V2 = 1.75 × 263
191.1 V2 = 460.25
V2 = 460.25 ÷ 191.1
V2 = 2.41 L
Which of the following does not describe a solid
Answer:
water is not a solid and a rock is a solid
Select the correct answer.
Which unit is used for measuring atomic mass?
AMU-aka
Atomic mass unit
Answer:
The unit of Atomic mass is "amu"
Explanation:
Atomic mass unit
Go to the To Scale tab at the bottom of the simulation, and select Path from the central menu on the right. Set up a Planet-Moon simulation. Use the sliders to make both the planet and the moon as massive as possible, and then begin the simulation. What do you notice about the moon’s motion when it is closest to the planet? What about when it is farthest away?
When it could be closest to the Earth and farthest from it, the Moon passes the fastest as well as the slowest.
What is Earth?The only cosmic object known to contain life is Earth, which would be located third from the Sun. Although the Solar System contains enormous amounts of water, only Earth is home to liquid surface water. The oceans cover over 71% of Earth's crust, dwarfing its polar ice, lakes, including rivers.
What is moon?The sole natural satellite of Earth would be the Moon. It makes up the Earth-Moon satellite system with Earth. Its diameter is equivalent to one-fourth of Earth. It should be the biggest satellite of a planet compared to the main, bigger than any existing dwarf planet, as well as the fifth biggest satellite in the Planetary System.
When sliders to make both the planet and the moon as massive as possible, and then begin the simulation. they noticed, it could be closest to the Earth and farthest from it, the Moon passes the fastest as well as the slowest.
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What is the mole ratio of magnesium carbonate to magnesium oxide? MgCO3 →MgO+CO2
a)3:2 b) 1:3 c) 1:1 d) 1:2 e) 2:3
Answer:
d)1:2
Explanation:
The atomic model that describes an atom as a spherical object containing a certain number of electrons trapped in a mass of positive charge is often called the ___________ model.
help
¿
Que es la materia y qué es el volumen que ocupa la materia?
Todo en un estado sólido de materia tiene una forma y una longitud distintas. El volumen de un objeto es la cantidad de espacio que ocupa. Un sólido es un bloque de madera que conserva su forma y volumen cuando se coloca sobre una mesa.
Hope that helps!!!
¡Espero que ayude!
Review the chart of all the domesticated rabbits. The different types of rabbits are listed by their scientific names. If you were a
rabbit breeder, which rabbits could you breed to produce fertile offspring? Explain.
A)
All of the rabbits listed. They are all rabbits.
B)
None of these rabbits. They are all different species.
C)
Any of the cottontail rabbits They are the same species.
D)
Any of the rabbits on the same branch in the chart because that means
they are closely related.
Answer: None of these rabbits listed. they are all different species
Explanation:
I got it right on usatestprep
in which type of condition is a conditions is a landslide most likely to occur
Answer:
B. In a wet, hilly area
Explanation:
We know that for a landslide to happen, there has to be a down hill slope so it can fall.
This eliminates answers C, D and E.
So we are left with A and B
Now we can look at this in a real life scenario. If you have ever walking on wet ground, you will know that is weaker than dry ground. Knowing this, we know the answer will have to be answer B.
you have a coin with a volume of 10cm3 and a mass of 23g. What is the density of the coin
Answer:
2.3 grams per cubic cm
Explanation:
Density is equal to mass over volume, so
23/10=2.3
What is the wavelength of spectral line resulted from the electron transition from n=3 to n=2 in a hydrogen atom.
Answer:
[tex]\lambda=6.56x10^{-7}m[/tex]
Explanation:
Hello there!
In this case, it possible to use the Rydberg equation in order to calculate the wavelength for this transition from n=3 to n=2 as shown below:
[tex]\frac{1}{\lambda} =R_H(\frac{1}{n_f^2}-\frac{1}{n_i^2} )[/tex]
Thus, we plug in the corresponding energy levels and the Rydberg constant to obtain:
[tex]\frac{1}{\lambda} =10973731.6m^{-1}(\frac{1}{2^2}-\frac{1}{3^2} )\\\\\frac{1}{\lambda} =1524129.4m^{-1}\\\\\lambda=\frac{1}{1524129.4m^{-1}} \\\\\lambda=6.56x10^{-7}m[/tex]
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