900 mL of water is added to 100 mL of a 0.1 M solution. What is the new concentration?
0.1M
0.001M
0.0001M
0.01M

Answers

Answer 1

Answer:

The new concentration of the solution is;

0.01 M

Explanation:

The question relates to concentration of solution and proportion of mixtures

The given parameters are;

The volume of water added to the 0.1 M solution = 900 mL

The initial volume of the solution to which water was added = 100 mL

Therefore, the total final volume of the solution = 100 mL + 900 mL = 1000 mL = 1 L

The concentration of the solution = 0.1 M

The number of moles present in the solution, 'n', is given as follows;

n = 100 mL/(1000 mL) × 0.1 M = 0.01 moles

Given that no more concentrated solution was added, we have;

The number of moles in the 100 mL solution   = The number of moles in the 1,000 mL solution

Therefore, the number of moles in the 1,000 mL (1 L) solution = 0.01 moles

Therefore;

The new concentration of the 1,000 mL (1 L) solution = 0.01 moles/(1,000 mL) = 0.01 moles/(1 L) = 0.01 M (By definition of the molarity of a solution)

The new concentration of the 1,000 mL (1 L) solution = 0.01 M.

Answer 2

D. 0.01 M

Given:

The volume of water added to the 0.1 M solution = 900 mL

The initial volume of the solution to which water was added = 100 mL

So,

The total final volume of the solution = 100 mL + 900 mL = 1000 mL = 1 L

The concentration of the solution = 0.1 M

Firstly we need to find the number of moles which is represented by 'n':

 [tex]n = \frac{100mL}{1000mL}* 0.1 M\\\\n = 0.01 \text{moles}[/tex]

 The number of moles in the 100 mL solution   = The number of moles in the 1,000 mL solution

Thus,

The number of moles in the 1,000 mL (1 L) solution = 0.01 moles  

For calculation of new concentration:

Using Molarity formula:

The new concentration of the 1,000 mL (1 L) solution [tex]= \frac{0.01\text{ moles}}{1000mL} = \frac{0.01\text{ moles}}{1L} = 0.01 M[/tex]

The new concentration of the 1,000 mL (1 L) solution = 0.01 M.

Thus, the correct option is D.

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Related Questions

HELP HELP IM FAILING PLZ HELP ME

What is the formula mass of calcium nitrate tetrahydrate (Ca (NO3)2 · 4H0]?
Be sure to add the water of hydration, which is the 4H2O part (water surrounding the calcium
nitrate).


102 g/mol
164 g/mol
174 9/mol
236 g/mol

Answers

Answer:

236 g/mol

Explanation:

This question is asking to calculate the molar mass/formula mass of calcium nitrate tetrahydrate with the chemical formula: Ca(NO3)2 · 4H20. This is done as follows:

Atomic mass of the constituent elements are as follows:

Ca = 40

N = 14

O = 16

H = 1

Hence, in Ca(NO3)2 · 4H20.

= 40 + {14 + 16(3)}2 + 4 {1(2) + 16}

= 40 + {14 + 48}2 + 4{2 + 16}

= 40 + {62}2 + 4{18}

= 40 + 124 + 72

= 236

Hence, the molar mass of Ca(NO3)2 · 4H20 is 236g/mol.

Answer:

236 g/mol

Explanation:

0.65743 In scientific notation

Answers

202827.0000 is the answer I think idrk

if you had a block square that weighed 5.00 grams what would be the length of each side

Answers

Answer:

[tex]l = 0.793[/tex] cm

Explanation:

Let us assume the density of block square [tex]10[/tex] g/cm³

As we know

Volume = [tex]\frac{Mass}{Density}[/tex]

Thus Volume of this block is equal to [tex]\frac{5}{10} = 0.5[/tex]

As we know volume of square block of side of length "l" is equal to [tex]l^3[/tex]

[tex]l^3 = 0.5[/tex]

[tex]l = 0.793[/tex] cm

What kind of information does this map show?
A. The roads that connect different cities
OB. The shapes of different landforms
O C. The elevation of Earth's surface features
D. The natural resources found in different areas

Answers

A the numbers represent highways.
A. This map shows only maps, so only logical one :)

Explain how the temperature of a substance is related to the kinetic of it molecules.

Answers

Answer: this is the explanation

Explanation:

the temperature of a substance is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles

More kinetic energy means more collision of particles,therefore, as particles collide more the temperature rises.

i really need help on this one!!


Suppose Earth’s gravitational force were decreased by half. How would this change affect a game of basketball? Think about the motion of the players and the ball.

Answers

Answer:

Due to the decrease in the gravitational force, it will take longer time for ball to reach the ground while dribbling. Moreover, the hang time of players will also be longer. This means that the players will stay on air longer and will be able to jump higher.

What ideas do you have about how two places
could have the same amount of sunlight but
different skin cancer rates?

Answers

Answer:

it could depend on the environment of the area, how the sun rays are parting through particles in the air, or it jus might be the amount of heat radiation is coming down cause it could be a chilly sunny day or a hot sunny day

I really am bad at chemistry

Answers

Answer:

A, 4,3,3,4

B, 3,2,2,3

C, 2,6,2,3

D, 1,2,1, 1

Which three elements have the most similar chemical properties?
1.
Ar, Kr, Br
2
K, Rb, Cs
3.
B, C, N.
4.
O, N, Si

Answers

Answer:

2.

Explanation:

Beacuse they are all group 1 metals. All have the same boiling, melting point and reactivity due to one electron in its outer shell.

Potassium(k), rubidium(Rb), and cesium(Cs) are the three elements from the given list that have the most similar chemical properties.

Therefore the correct answer is option 2.

What is the atomic number?

The total number of protons present in an atom is known as the atomic number of that atom. The atomic number has no correlation either with the number of neutrons or the number of electrons present inside an atom.

While the atomic mass of an atom is the sum of the total number of protons and the number of neutrons present inside of any atom.

From the list of elements, potassium (k), rubidium (Rb), and cesium (Cs) are the three that share the most chemical similarities.

Thus, option 2 is the right response.

To learn more about the atomic number from here, refer to the link;

brainly.com/question/14190064

#SPJ6

which organs are part of the respiratory system ​

Answers

It includes the lungs, airways, and blood vessels. The muscles that power your lungs are also a part of the respiratory system.

Hydrazine, N2H4, and hydrogen, H2O2, have been used as rocket propellants. They react according to the equation:

H2O2 + N2H4 → N2 + H2O

a. How many moles of N2 are formed from 0.0250 moles of N2H4? (0.0250)

b. How many moles of H2O2 are required if 1.35 moles of H2O is to be produced? (0.675)

c. How many moles of H2O are formed if 1.87 moles of N2 is produced? (7.48)

Answers

Explanation:

The equation of the reaction is;

H2O2 + N2H4 → N2 + H2O

Upon balancing the reaction, we have;

N2H4 + 2H2O2 → N2 + 4H2O  

a. How many moles of N2 are formed from 0.0250 moles of N2H4?

From the equation of the reaction;

1 mol of N2H4 produces 1 mol of N2

0.0250 mol of N2H4 would produce x mol of N2

1 = 1

0.0250 = x

x = 0.0250 * 1 / 1 = 0.0250 mol

b. How many moles of H2O2 are required if 1.35 moles of H2O is to be produced?

From the equation of the reaction;

2 mol of H2O2 produces 4 mol of H2O

x mol of H2O2 produces 1.35 mol of H2O

2 = 4

x = 1.35

x = 1.35 * 2 / 4 = 0.675 mol

c. How many moles of H2O are formed if 1.87 moles of N2 is produced?

The relationship between H2O produced and N2 is;

For every 1 mol of N2 produced, 4 mol of H2O is produced

1.87 mol of N2 produced, how many moles of H2O is produced?

1 = 4

1.87 = x

x = 1.87 * 4 / 1 = 7.48 mol

If you add more molecules but do not change the temperature or the pressure, what will happen to the system?
the molecules will move faster
O the volume will decrease
the volume will increase
the molecules will move slower

Answers

Answer:

the volume will increase

Explanation:

The kinetic energy of gas molecules depend upon the temperature . If temperature is increased , the molecules will move faster . When temperature is decreased , they move slower .

Hence when more molecules are added to a gas without changing its temperature , the velocity of gas molecules will remain unchanged .

Since pressure  is also constant , it is volume which will be increased .

It can be explained from universal gas formula as follows

PV = nRT

P , R and T is constant ,

V ∝ n

Volume is proportional to n which depends upon number of molecules .

So volume will increase if number of molecules increases .

Arrange the following atoms in order of increasing size (radius).
Te, S, Se
K, Br, Ni
Ba, Si, F

Answers

Answer:

S<Se<Te

Br<Ni<K

F<Si<Ba

Explanation:

Why would it be harder to jump on the planet Jupiter than on Earth?
HELP PLSSS

Answers

The answer for your question is B!
THE ANSWER IS THE SECOND OPTION

5.4 g of Aluminium reacts with 300 mL of 0.2 mol/L hydrochloric acid solution. a. Write equation for the reaction taking place. b. Specify which reactant is limiting and which reactant is excess. c. Find volume of the gas collected at S.T.P d. How many grams of salt are produced at the end of the reaction? e. How many grams of the excess reactant are left ate the end of the reaction? Given: Al=27 , H=1 , Cl=35.5

Answers

HCl as a limiting reactant

volume of the gas(H₂)= 0.672 L

mass of salt : =2.67 g

mass of excess left :  4.86 g

Further explanation

Given

5.4 g Al

300 mL of 0.2 mol/L HCl

Required

limitng reactants

volume of the gas(H₂)

mass of salt

mass of excess left

Solution

Limiting reacttant

Reaction

2Al + 6HCl → 2AlCl₃ + 3H₂

mol Al = 5.4 g : 27 g/mol = 0.2

mol HCl = 0.3 L x 0.2 mol/L = 0.06

mol : coefficient of reactants :

Al = 0.2 : 2 = 0.1

HCl = 0.06 : 6 = 0.01

HCl as a limiting reactant(smaller ratio)

Al as an excess reactant

volume of H₂

mol H₂ = 3/6 x mol HCl = 3/6 x 0.06 = 0.03

volume (STP : 1 mol=22.4 L) :

= 0.03 x 22.4 L

= 0.672 L

mass of salt(AlCl₃)

mol AlCl₃ = 2/6 x mol HCl = 2/6 x 0.06 = 0.02

mass AlCl₃ :

= mol x MW

= 0.02 x 133.5

=2.67 g

mass of excess(Al) left

mol (reacted) : 2/6 x mol HCl = 2/6 x 0.06 = 0.02

mol (unreacted) : 0.2 - 0.02 = 0.18

mass = 0.18 x 27 g/mol = 4.86 g

10
If velocity is positive, which would most likely yield a negative acceleration?
O O OO
A final velocity that is faster than an initial velocity.
A time that is less than a half hour.
An initial velocity that is faster than a final velocity.
A time that is greater than a half hour.

Answers

Answer:

An initial velocity that is faster than a final velocity

Explanation:

The relationship between velocity and acceleration is given as follow;

Acceleration = Change in velocity / Time

Change in Velocity = Final Velocity - Initial Velocity

From the formular, time is not able to affect the sign of the acceleration.

A negative acceleration is also referred to as deceleration and this occurs when there is a drop in velocity.

A drop in velocity occurs when the initial velocity is faster than the final velocity.

plsssss help with this ill give brainliest to first answer
How does the concept of conservation of mass apply to chemical reactions?

Answers

Answer:

The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

in cubic
A box that is 35 inches X 35 centimeters X 0.065 yards will have a volume of
centimeters.

Answers

Answer:

V = 18,493.5114 cm³

Explanation:

Dimensions are;

L = 35 inches

W = 35 cm

H = 0.065 yards

Now, volume is given by;

V = LWH

But our dimensions need to all be in the same unit, so let's convert to cm.

L = 35 inches = 35 × 2.54 cm = 88.9 cm

H = 0.065 yards = 0.065 × 91.44 = 5.9436 cm

Thus;

V = 88.9 × 35 × 5.9436

V = 18,493.5114 cm³

i need help i hate multi selects. 100 points please let me know

Answers

Answer:

d would be both liquids and gasses

Explanation:

Answer:

A. Gases

B. Solids

C. Gases

D. liquids and solids

So basically all ur answers are right except D

Explanation:

Brainlist?

How does the rock cycle work help use a easy understanding small summary

Answers

Answer: this is how it works

Explanation:

The magma bursts through Earth's surface in the form of a volcano. Heat and pressure deep in the Earth makes some rocks change to metamorphic rock. Layers of rock get squashed and packed together and gradually harden to form sedimentary rock. The igneous rock gets broken down by weather, and the cycle begins again.

How many milliliters of an aqueous solution of 0.222 M manganese(II) iodide is needed to obtain 9.57 grams of the salt?​

Answers

Answer:

139 mL

Explanation:

Given data:

Volume of solution required = ?

Molarity of solution = 0.222 M

Mass of salt = 9.57 g

Solution:

Number of moles of manganese iodide:

Number of moles = mass/molar mass

Number of moles = 9.57 g/ 308.75 g/mol

Number of moles = 0.031 mol

Volume required:

Molarity = number of moles of solute / volume in L

0.222 M = 0.031 mol / V

V = 0.031 mol / 0.222 mol/L

V = 0.139 L

Volume in mL:

0.139 L ×1000 mL / 1 L

139 mL

Please help with this

Answers

1. Double-Replacement reactions

2. Decomposition  

3. Combustion

4. Syntesis

5. Single replacement

Further explanation

Given

Chemical equations

Required

Type of reaction

Solution

1. 2AgNO₃ + MgCl₂ ⇒ 2AgCl + Mg(NO₃)₂

Double-Replacement reactions. Happens if there is an ion exchange between two ion compounds in the reactant

2. 2KBr⇒2K +Br₂

Decomposition  

Single compound breaks down in to 2 or more products

3. C₃H₈ + 5O₂ ⇒ 4H₂O + 3CO₂

Combustion

Hydrocarbon and Oxygen reaction and form water and carbon dioxide

4. NaO + H₂O ⇒ NaOH

Syntesis

2 or more reactants combine to form a single product

5. Zn + CuCl₂ ⇒ZnCl₂ + Cu

Single replacement

One element replaces another element from a compound

Water is not an element because it:

Answers

Answer:

because is made of more than on type of atom

which diagram would it be?

Answers

Answer:

2CH4 ------> 3H2 + C2H2

Explanation:

The law of conservation of mass states that atoms can neither be created nor destroyed in a chemical reaction.

The implication of this law is that the number of atoms of each element on the reactant side must be equal to the number of atoms of each element on the product side.

This law is only obeyed by the reaction, 2CH4 ------> 3H2 + C2H2

There were eight atoms of H on the left hand side as well as the right and side of the reaction equation. There were two atoms of C on both the left and right hand sides of the reaction equation respectively. Hence, the law was obeyed here.

_____ are bits and pieces of material that end up in a body of water.

Answers

Answer:

sediments

Explanation:

9. A container has 56 g of Sc and 95 g of Br 2 in it. If the reaction goes to completion, what is the maximum amount of ScBr3 which could be produced?

Answers

Answer:

c

Explanation:

Please help me I hate chemistry

Answers

i’m only here bc i gota ask a question too

disolvin rate is The rate at which a solute dissovles depends upon the size of the solute particles. Dissolving is a surface phenomenon since it depends on solvent molecules colliding with the outer surface of the solute.

saturation the degree or extent to which something is dissolved or absorbed compared with the maximum possible, usually expressed as a percentage.

changes in solubility  For many solids dissolved in liquid water, the solubility increases with temperature. The increase in kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions.

The concentration of a solution is a measure of the amount of solute that has been dissolved in a given amount of solvent or solution. A concentrated solution is one that has a relatively large amount of dissolved solute. A dilute solution is one that has a relatively small amount of dissolved solute.

dilution is the making something weaker in force, content, or value.

Colligative properties of solutions are properties that depend upon the concentration of solute molecules or ions, but not upon the identity of the solute. Colligative properties include vapor pressure lowering, boiling point elevation, freezing point depression, and osmotic pressure.

The empirical formula of a compound is determined to be N2O5. If the molar mass of the compound is 108 g/mol, determine the molecular formula of the compound.

Answers

Answer:

N2O5

Explanation:

Empirical formular is the simplest formular of a compound and shows the atoms present in simple rations.

Molecular formular on the other hand shows the exact number of atoms of element present in a compound.

To obtain molecular formular from empirical formular;

(Empirical formular)n = Molar mass

where n is a simple integer.

(N2O5)n = 108 g/mol

Molar mass of N2O5 = 108 g/mol

(108) n = 108

n = 108 / 108 = 1

Molecular formular = (Empirical formular)n

Molecular formular = (N2O5)*1 = N2O5

In this question, the empirical formular is the same as the molecular formular

what geologic structures are associated with earthquakes

Answers

Answer:

Seismic waves are produced when suddenly released some sort of energy stored in Earth's crust, usually when suddenly fracture and "slip" masses of rock straining against each other. Earthquakes occur most frequently along geological faults, narrow zones where rock masses shift in relation to each other.

Explanation:

Hope This Helped. :)

An ionic bond always forms between _____ ion with a positive charge and _____ ion with a negative charge.

Answers

Answer:

Cation and anion

Explanation:

Positive ion is known as cation and negative ion is known as anion

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Find the area of the isosceles triangle.13 cm is the side length 10 cm is the base length what is the hight? and area? Analyze the list of events below and answer the question that follows. 1. war in Iraq2. European partitioning of the Middle East3. citizen-led protests against dictatorships (referred to as the Arab Spring)4. the creation of the state of IsraelWhich of the following number sequences correctly traces the above Middle Eastern conflicts in chronological order, starting with the earliest and ending with the most recent?A.1,2,4,3B.3,1,2,4C.2,4,1,3D.4,2,3,1Please select the best answer from the choices providedABCD Consider the article "Spidey Skin Power!" What makes spider silk an unrealistic material for fabrics?A Spider silk creates a fabric that is thin and easily torn, despite the strength of the fibers themselves.B Spider silk is extremely costly because of the challenges involved in keeping spiders in captivity.C Spider silk creates a type of fabric that is neither breathable nor comfortable and is therefore hard to sell.D Spider silk is difficult and inefficient to obtain because each spider is relatively unproductive. what is the main idea of this paragraph 2. Ava has 6 boxes of cookies, each box has 30 cookies. Select all the equations that describe the situation. [2 points]a.30=6b.=6 30c.6=30d.6=30e.306= Solve this question please Same information as the previous question Company A started business on January 1, 20X1, and bought the following piece of equipment. Cost of asset $150,000 Useful life 3 Tax rate 21% 20X1 estimated tax payment 1,800 Depreciation for book and tax purposes is as follows: Book Tax 20X1 40,000 100,000 20X2 40,000 20,000 20X3 40,000 0 20X1 income statement information: Sales 638,000 Expenses (does not include depreciation expense and tax expense) 510,000 What the ending balance of deferred taxes payable as of December 31, 20X1? The height above the ground of a stone thrown upwards is given by s(t), where t is measured in seconds. After 1secondnothing,the height of the stone is 47feet above the ground, and after 1.5seconds, the height of the stone is 54feet above the ground. Evaluate s(1)and s(1.5),and then find the average velocity of the stone over the time interval [1,1.5]. One example of a Compound sentence and Complex sentence Identify the model that shows 4 items being divided equally among 3 people. How much will each person have? what is the verb in the sentance "We went to the beach" how many angles must be supplementary with angle 14? 4 lines intersect to form 16 angles. The angles created, clockwise from top left are 1, 2, 3, 4; 5, 6, 7, 8; 13, 14, 15, 16; 9, 10, 11, 12. one two four eight Which institution informs individuals and businesses about their rights and responsibilities?A.The Federal Trade CommissionB.The Office of the ComptrollerC.The Federal Reserve SystemD.The Bureau of Consumer Protection A boat travels north at a rate of 25.0 kilometers per hour (km/hr) relative to the current of the river. The current of the river moves south at a rate of 10.0 km/hr relative to the ground. What is the rate of motion of the boat relative to the ground? Ellie is shooting a free throw. At the instant the ball leaves her hand the ball is traveling at a velocity of 9 m/sec, at an angle above the horizontal of 29.5 degrees. If you are standing beneath the basketball rim, videotaping, you can only see the vertical motion of the ball, since its horizontal motion is straight towards you. What is the magnitude of the ball's initial vertical velocity (if you measured it using your video data, in m/sec) A) The English built forts within French boundaries.B) The English did not respect the French fur trading business or French territorial boundaries.C) Indian tribes would not agree to trade with the French.D) The French did not respect English land. This object is rocky or metallic and revolves around the sun. Which object is this describing in the solar system?AsteroidCometMoonPlanet Someone help pleaseThe prism shown has a volume of 35 cm'.Work out h, the height of the triangular cross section.Ih7 cm4 cm Blue whale is larger than all the other animals. [Use the superlative of theadjective used] Ernesto buys a leaf blower price that $100 shipping and handling are an additional 10% of the price how much shipping and handling will Ernesto pay ?