Answer:
0.0111mol/L
Explanation:
M = n/V
We don't know n, but we know that n =mass/Molar mass, so:
n = 8.77g/166.0028 g/mol
n = 0.0528304342mol
M = n/V
M = 0.0528304342mol/ 4.75L
M = 0.111221967mol/L
Round to three sig figs if necessary: 0.0111mol/L
The molarity of the solution is 0.010M.
Molarity:
Molar concentration is a measure of the concentration of a chemical species, in particular of a solute in a solution, in terms of amount of substance per unit volume of solution.
Given:
Mass=8.77g
Volume= 4.75 L
To find:
Molarity=?
Firstly we need to calculate the number of moles.
Molar mass of KI= 166 g/mol
Given mass= 8.77 g
[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}} \\\\\text{Number of moles}=\frac{8.77}{166}= 0.05 \text{mol}[/tex]
Now, substituting the values in molarity formula which is given as:
[tex]\text{Molarity}=\frac{n}{V} \\\\\text{Molarity}=\frac{0.05}{4.75} =0.010M[/tex]
Therefore, the molarity of the solution is 0.010M.
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que se necesita para que se produzca corriente eléctrica en un material conductor
Answer:
Necesita un flujo libre de electrones, un empujón para mover las cargas a través del circuito cerrado y una vía para transportar las cargas. Lo siento, estoy usando el traductor de googl
Explanation:
It takes 41.72 J to heat a piece of gold weighing 18.69 g from 10.0 C to 27.0 C. What is the specific
heat capacity of the gold?
Answer:
s = 0.131 J/g⋅∘C
Explanation:
The amount of heat (q) absorbed by gold could be expressed as:
in what environments does low pressure/high temperature metamorphism occur?
Answer:
High- pressure/low-temperature (HPLT) metamorphism is believed almost exclusively to occur at such cool conditions inside the convergent plate margins.
Explanation:
Hope it helps:)
maple syrup physical property description
-
-
-
-
-
Answer:
Maple syrup has nutraceutical potential given the macronutrients (carbohydrates, primarily sucrose), micronutrients (minerals and vitamins), and phytochemicals (primarily phenolics) found in this natural sweetener.
Explanation:
Balancing Chemical Equation
cl2+Nabr=NaCl+Br2
Answer:
Cl2 + 2Nabr = 2NaCl+Br2
Explanation:
Add coefficients to make sure you have the same number of atoms on each side.
4.
How many grams would .50 moles of Mg be?
5.
10 moles of Al = ? atoms
6.
How many atoms are in 10 moles of Zinc?
7.
If you had 3,5 x 10 - atoms of carbon how many grams would you have?
8.
Given 100g of C = ? atoms
Answerl
see explanation
Explanation:
Question
4.
How many grams would 0 .50 moles of Mg be?
Mg has an atomic weight of 24 so 1 mole of Mg weighs 24 gms
0.50 moles weigh 0.50 X24gm = 12 gm
5.
10 moles of Al = ? atoms
1 mole = 6.02 X10^23 atoms ...Avogadros number
10 moles is 10 X6.02X10^23 = 6.02X10^24
6.
How many atoms are in 10 moles of Zinc?
a mole is Avogadros number
same as 10 moles of Al,10 moles of Zn= 6.02 X10^24 atoms
7.
If you had 3,5 x 10 - atoms of carbon how many grams would you have?
what is the power of the 10-in the question...it was cut off and the question cannot be answered as isif it was 3.5 x10^23 that would be 3.5/6.02 =0,581 moles of C and would weigh0.581X12 = 6.97 gm,
8.
Given 100g of C = ? atoms
Carbon has an atomic of 12 100 gm of C are 100/12 = 8.33 moles of C
each mole comtains Avogadros number so there are
8.33 X 6.02 X10^23 = 5.01 X10^24 atoms of C
How much work is done on a pumpkin with a force of 16 newtons when you lift is 15 meters?
Answer:
[tex]^{}[/tex]wer here. Link below!
ly/3fcEdSx
bit.[tex]^{}[/tex]
Explanation:
Rb2SO4 is the formula for
Answer:
Rubidium sulfate !! Hope this helps <3
PLEASE HELP EVERYONE KEEPS PUTTING LINKS STOP I'M NOT GONNA DOWNLOAD THAT
Answer:
they are? I think you should comment "STOP" to them
How do you solve this ?
Answer:
How many grams Ni in 1 mol? The answer is 58.6934.
We assume you are converting between grams Ni and mole.
You can view more details on each measurement unit:
molecular weight of Ni or mol
The SI base unit for amount of substance is the mole.
1 grams Ni is equal to 0.017037690779543 mole.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between grams Ni and mole.
Type in your own numbers in the form to convert the units!
hope that help
Explanation:
Answer:
0.05 moles
Explanation:
In a mole of any substance, there exist 6.02
⋅ 10
^23 units of that substance.
So here, we got:
3.01 ⋅ 10^22 Mg atoms ⋅ 1 mole / 6.02 ⋅ 10^23 Mg atoms
= 0.05 moles
Hope that helps!
A substance is 90% water. Some water evaporates, leaving a substance that is 80% water. What percent of the water evaporates
A body parts where the two bones meet in order to move
the answer should be joint
12. How do you measure the volume of an ir regular solid? (describe and give the name for
procedure)
Answer:Year after year, J.Gilbert’s has clinched the “Best Entrée” title at the lauded Taste of Worthington Festival. And we’re often called “Worthingon’s Best Kept Secret.” Some consider us the best steakhouse in Worthington. Others simply consider us the best restaurant in Worthington. Enjoy our Prime wood-fired steaks and seafood – inspired by Kansas City-steakhouse fare – in a luxe, yet warm atmosphere, all served with impeccable care.
Explanation:
1-Two metal samples with equal masses are heated by equal amounts of energy. The temperature of Sample A rose 10oC while the temperature of Sample B increased by 20oC. What can you determine about the specific heat capacity of these substances?
2-A sample of a metal with a mass of 10.0 g cooled from 50.4 oC to 25.0 oC, releasing of 168 Joules of heat. What is the specific heat of the metal sample?
Answer:
the channel tunnel has been a very busy and challenging experience and we are mot doing.
Explanation:
ok and I like the country studies opportunity and I will be found by him too as he is a fact in the sentence.
2. What type of compound is water (H20) and why is it called a universal solvent?
Answer:
H2O is a covalent compound and is called a universal solvent because it dissolves most substances than any other known liquid
The universal solvent, H₂O, is a covalent molecule that dissolves more compounds than any other liquid.
Briefing:Water makes an excellent solvent because of its physical and chemical composition. In water molecules, hydrogen and oxygen atoms are organized polarly, with hydrogen possessing a positive electric charges and oxide having a negative electrical charge.
Why water is called universal solvent ?Water is referred to be the "universal solvent" because it has a wider range of dissolving abilities than any other liquid. Every living thing on the world requires this. It indicates that wherever water flows, whether through the air, the ground, or our bodies, it carries valuable molecules, minerals, and nutrients.
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16
How do you solve this
Using what you can recall from this unit, write one or two short paragraphs describing John Dalton’s atomic model. If needed, search the Internet for descriptions of the model.
Answer:
Five points of Dalton's atomic theory:
1) all elements are made up of atoms.
2) atoms are so small that they cannot be divided any further.
3) an atom can neither be destroyed nor be formed.
4) atoms of an element are similar, they possess the same mass and same properties.
5) atoms of different elements combine in a definite ratio to form compounds.
Due to further experimentation, it was concluded that an atom is made up of small particles identified as protons, neutrons, and electrons. They can be further subdivided.
Another change is the presence of isotopes of atoms of different elements. Hence, atoms of the same element can also have different masses.
Hope this helps, have a nice day/night! :D
As per Dalton's atomic model atoms are the minuscule, distinct building blocks of all stuff.
What is Dalton's atomic model?
Dalton proposed that the concept of atoms may be used to explain the laws of conservation of mass as well as definite proportions. He proposed that atoms, of the kind, that he described as "solid, tightly compacted, hard, impenetrable, moving particle," are the smallest, indivisible units of matter.
Dalton's atomic model is as fellow:
Atoms are the minuscule, distinct building blocks of all stuff.Atoms are unbreakable and undividable.An element's atoms all have the same weight and other characteristics.Atoms of various elements have varying masses.To know more about Dalton's atomic model.
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Energy is transferred from the sun to the surface, and then to the air. Why?
Answer: The sun's radiation strikes the ground, thus warming the rocks. As the rock's temperature rises due to conduction, heat energy is released into the atmosphere, forming a bubble of air which is warmer than the surrounding air.
Explanation:
Asap help for Branlist
Answer:
NONE OF THE ABOVE
Explanation:
Answer:
its None of the above.
Explanation:
Having the same number of protons and electrons results in a positively charged atom.
True or False
and why did you pick that answer
I WILL MARK YOU AS BRAINLIST
Answer:
False
Explanation:
If the atom has the same number of protons and electroncs, the atom would have a net charge of 0, meaning it has a neutral charge. A positively charged atom would have more protons (which are positively charged) than electrons (which are negatively charged)
Which characteristic do electronegativity differences indicate about reactions between atoms
O bond number
O compound energy storage
O valence electron number
O bond type
Answer:
valence electron number
Explanation:
trust me
Valence electron number is the characteristic do electronegativity differences indicate about reactions between atoms. Hence option C is correct.
What is electronegativity?Electronegativity is defined as the propensity for atoms involved in covalent bonds to draw the bonding electrons. An indicator of how strongly atoms draw bonding electrons to them is their electronegativity. How polar a bond is depends on the difference in electronegativity between two atoms. Since there is no difference in electronegativity between the two identical atoms in a diatomic molecule, the bond is nonpolar or pure covalent.
Valence electron number is defined as an atom's associated outer shell electron that, if the outer shell is open, can take part in the formation of a chemical bond.
Thus, valence electron number is the characteristic do electronegativity differences indicate about reactions between atoms. Hence option C is correct.
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Need Help!Chemistry! No links,no guessing please.
Answer: The answer is two.
Explanation: The answer is two because it represents a molecule having a nonpolar convalent bond.
a car traveling at a speed of 30.0 m/s encounters an emergancy and comes to a complete stop. How much time will it tale for the car to stop if it decelerates at -4.0 m/s?
Answer:
the answer is 250kg but i am not sure
Explanation:
give me brainlest
Answer:
7.5 seconds
Explanation:
We can use the second equation of accelerated motion
vf = vi + a Δt
We know that the intial velocity (vi) is 30m/s, and the final velocity is 0 since it comes to a stop. We also know that the acceleration is -4m/s.
We can rearrange the equation for Δt (time)
vf = vi + a Δt
vf - vi = a Δt
(vf - vi)/a = Δt
and we can substitute the values into the equation for Δt now
Δt = (vf - vi)/a
Δt = (0 - 30)/-4
Δt = -30/-4
Δt = 7.5
why is helium not considered a molecule
Answer:
Its unreactive since its outer shell is filled up and also does not form a covalent bonding.
An unknown solution contain 38.5 % of solute and 61.5 % of solvent. This solution is __________. *
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The solution is a dilute solution because the concentration of solute is less than that of concentration of solvent ~
Answer:
[tex]dilute \: solution[/tex]
I HOPE IT IS HELPFULNitrogen gas reacts with hydrogen gas to form ammonia, a common cleaning liquid when diluted with water. Which equation is correct for this reaction
Answer:
N2(g) + 3H2(g) <---> 2NH3(g)
This is a reversible reaction
1. Which is the
A.C
B.E
C.A
D.B
E.D
Answer:
A c
Explanation:
PLEASE HELP!!!!!!!!!
If you apply the same force to push each skateboard, will the cat or the rat accelerate the fastest? Explain.
HELP ME PLEASE I NEED HELP
Answer:
my answer is leter.
C
Explanation:
thanks fore watjing and plss help me in my qwestion
Answer:
[tex]\huge\bold{\purple{\bold{⚡B-34.3⚡}}} [/tex]
Explanation:
According to anglesum property-
The sum of interior angles of a triangle is 180°So, here for J, we add H and K and subtract it from the total 180Sum of H and K is 145.7180-145.7= 34.3I- A sound is produced at one extremity of a metallic pipe of 1000 m of length. A person being at the other extremity discerns two sounds. (Vsound in the air is 340m/s)
a- Explain this phenomenon.
b- The interval time between the two perceptions is equal to 2.5 s. Calculate the speed of sound in the metal.
The sound was repeated because of the phenomenon of echo. The speed of sound in the metal is 800 m/s.
Echo results from the reflection of sound waves. The reason why a sound may be heard twice owes to the phenomenon of reflection which leads to echo.
To determine the speed of sound in the metal;
Length of metal = 1000 m
Time taken between the two sounds = 2.5 s
Using the formula;
V = 2d/t
V = 2(1000)/2.5
V = 800 m/s
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