If 0.8675 g of KHP requires 24.56 mL of an NaOH solution to reach the equivalence
point in the titration, what is the concentration of the NaOH?

Answers

Answer 1

Answer:

[tex]M_{base}=0.173M[/tex]

Explanation:

Hello there!

In this case, since the titration of acids like KHP with bases like NaOH are performed in a 1:1 mole ratio, it is possible for us to know that their moles are the same at the equivalence point, and the concentration, volume and moles are related as follows:

[tex]n_{acid}=M_{base}V_{base}[/tex]

Thus, by solving for the volume of the base as NaOH, we obtain:

[tex]M_{base}=\frac{n_{acid}}{V_{base}} \\\\M_{base}=\frac{0.8675g*\frac{1mol}{204.22g} }{0.02456L} \\\\M_{base}=0.173M[/tex]

Best regards!


Related Questions

When the rate of the forward reaction equals the rate of the backward reaction, the system is said to be in (2 points)

a. reverse
b. dynamic equilibrium
c. homeostasis
d. suspended state

Answers

Answer:

I believe b, dynamic equilibrium

Explanation:

The answer is B dynamic equilibrium

14.3 moles of methane (CH4) burns completely, find the grams of H20 would be produced CH4 + 202 CO2 + 2H20 w​

Answers

Answer:

514.8 grams of H₂O would be produced.

Explanation:

The balanced reaction is:

CH₄ + 2 O₂ → CO₂ + 2 H₂O

By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles participate in the reaction:

CH₄:  1 mole O₂: 2 molesCO₂: 1 mole H₂O: 2 moles

Being the molar mass of each compound:

CH₄:  16 g/moleO₂: 32 g/moleCO₂: 44 g/mole H₂O: 18 g/mole

By stoichiometry, the following amounts of mass participate in the reaction:

CH₄:  1 mole* 16 g/mole= 16 gramsO₂: 2 moles* 32 g/mole=  64 gramsCO₂: 1 mole* 44 g/mole= 44 gramsH₂O: 2 moles* 18 g/mole= 36 grams

You can apply the following rule of three: if 1 mole of methane produces 36 grams of water, 14.3 moles of methane produces how much mass of water?

[tex]mass of water=\frac{14.3 moles of methane*36 grams of water}{1 mole of methane}[/tex]

mass of water= 514.8 grams

514.8 grams of H₂O would be produced.

Which compound will be the most soluble in water?


a) CH3CH2CH2CH2CH3
b) CH3CH2CH2CH2OH
c) HOCH2CH2CH2OH
d) CH3CH2CH2OCH3

Answers

Answer:

c) HOCH2CH2CH2OH

Explanation:

Hope this helps

A ________________________ can be at the top of a food chain.

Answers

Answer:

ap.ex predat0rs

Explanation:

Explain the difference between an exothermic and an endothermic reaction.

Answers

Answer:

Explanation:

Heat is a reactant.

If the equation requires heat to occur, the reaction is endothermic

The equation would have this model

A + B + heat =====> C + D

If the equation gives away heat, then it is exothermic

The equation would look like this. (I'll use a common reaction)

CH4 + 2O2 - heat ===> CO2 + 2H2O

The heat is minus when it has to be given away.

6.3x10-5M. What is the pH?

Answers

Answer:

https://sensorex.com/ph-calculator/

Explanation:

go to this link and then scroll down a little bit and then you'll find the answer

How many moles is 1.80 * 10^24 molecules of H2O?

Answers

Answer:

3.0 moles

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\ [/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{1.8 \times {10}^{24} }{6.02 \times {10}^{23} } = 2.990.. \\ [/tex]

We have the final answer as

3.0 moles

Hope this helps you

Which of the following is a homogenous mixture?

A. chicken noodle soup

B. Kool-Aid

C. water​

Answers

Answer:

Kool- aid

Explanation:

because it is the same throughout and can be seperated

Answer:

C. water

Explanation:

Jupiter's mass is more than _________ the mass of the other planets put together.

Answers

Answer:

2.5 times

Explanation:

Jupiter's mass is 2.5 times that of all the other planets in the Solar System combined—this is so massive that its barycenter with the Sun lies beyond the Sun's surface at 1.068 solar radii from the Sun's center.

2.5 times

Explanation: I’ve gotten asked this question in class before

The reactants of two chemical equations are listed. Equation 1: PbNO3 + Mg Equation 2: PbNO3 + KI Based on the type of reaction, which reaction can be used to extract lead metal from lead nitrate solution? (5 points)

Group of answer choices

Equation 2, because K being more reactive, exchanges position with Pb in PbNO3

Equation 2, because K being more reactive, exchanges position with N in PbNO3

Equation 1, because Mg being more reactive, replaces N from PbNO3

Equation 1, because Mg being more reactive, replaces Pb from PbNO3

Answers

Answer:

Equation 2, because K being more reactive, exchanges position with Pb in PbNO3.

Explanation:

Hello there!

In this case, according to the given reactions, it is possible to realize that according to the reactivity series, since K is is group 1A of alkali metals, we infer it is by far more reactive than magnesium, for that reason last two choices can be easily discarded. Now, considering equation 2, it would be necessary to complete it to figure out the correct option:

[tex]Pb(NO_3)_2 + KI \rightarrow PbI_2+KNO_3[/tex]

Whereas it can be seen that potassium exchanges position with Pb according to the double displacement reaction; therefore, the correct answer is "Equation 2, because K being more reactive, exchanges position with Pb in PbNO3".

Best regards!

Jacob is doing a report on the galaxy in which Earth is found. Which of the following is the galaxy that Jacob should research for his report?


Andromeda

Milky Way

Maffei 1

Ursa Minor

Answers

Answer:

milky way

Explanation:

How many moles of solute are in a .5 liter solution of carbonated water, if the concentration is 3.0 M?

Answers

Answer:

[tex]1 \: litre \: solution \: contains \: 3 \: moles \\ 5 \: litres \: will \: contain \: \frac{(5 \times 3)}{1} \: moles \\ = 15 \: moles \: of \: solute[/tex]

Determine the mass and weight of the air in your living room at 20°C ; the room has the following dimensions ;4m ×5m floor and ceiling is at 3m height. Take the density of the air as ​

Answers

Answer:

Volume of air is [tex]60[/tex] cubic meter

Mass of air is [tex]72.246[/tex] Kilogram

Explanation:

As air occupies the volume of the container in which it is kept. The volume of air here in this case will be equal to the volume of the room.

Volume of the room = length * breadth * height

Volume of the room = [tex]4*5*3 = 60[/tex] cubic meter.

Volume of air is also [tex]60[/tex] cubic meter.

Density of air at 20 degrees C [tex]= 1.2041[/tex] kg/cu.m

Mass of air

Volume * density

[tex]60 * 1.2041 = 72.246[/tex] kilogram

Volume of air is [tex]60[/tex] cubic meter

Mass of air is [tex]72.246[/tex] Kilogram

Considering the limiting reactant concept, how many moles of copper(1) sulfide are produced from the reaction of 20 mole of
copper and 2.4 mole of sulfur?
2 Cu(s) + s(s) Cu2S(s)
(No links or bad answer real d

Answers

What is stoichiometry?
When the space shuttle took off it used two different rocket systems. The main engines were powered by combining oxygen and hydrogen in the highly exothermic reaction

2H2 + O2 ⇌ 2H2O

The fuel was stored in that brown tank in liquid form as liquid oxygen (LOX) and liquid hydrogen (LH2). Liquids are much more dense than gases, so storage in the liquid phase allows the shuttle to carry an immense amount of fuel.

Unfortunately, that fuel made up the majority of the weight of the shuttle at liftoff. So most of what the shuttle engines lifted from the ground was fuel. That means it was very important not to have too much of one or the other reactant on board. We'd want just enough hydrogen to react with the amount of oxygen on board, and vice versa. That's where stoichiometry and moles are essential. Sana makatulong po sa inyo

How much heat is released if you produced 1.24 mol of Oz?

Answers

here watch this two min you-tube video i found that will solve your exact question i will link it in the comments


Humans are always consumers. Most humans are omnivores, but some
humans eat only plant matter making them herbivores. However, all
humans are considered to be -
Select one:
autotrophs
heterotrophs
producers
carnivores

Answers

Answer:

A. Autotrophs

Explanation:

an autotroph, def an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.

humans and other mammals, plants, and a select few other things

Liquid water - heat =
Pls help now!!!

Answers

Answer:

cold or ice?

Explanation:

have a good day.

explain the significance​

Answers

Answer:

Dictionary

Definitions from Oxford Languages

Search for a word

significance

/sɪɡˈnɪfɪk(ə)ns/

Learn to pronounce

noun

1.

the quality of being worthy of attention; importance.

"adolescent education was felt to be a social issue of some significance"

Similar:

importance

import

noteworthiness

consequence

substance

seriousness

gravity

weight

weightiness

magnitude

moment

momentousness

memorableness

unforgettableness

pronounced nature

remarkableness

outstanding nature

markedness

obviousness

conspicuousness

strikingness

distinction

impressiveness

uncommonness

unusualness

rarity

extraordinariness

exceptionalness

specialness

cruciality

Opposite:

insignificance

2.

the meaning to be found in words or events.

"the significance of what was happening was clearer to me than to her"

Similar:

meaning

sense

signification

import

thrust

drift

gist

burden

theme

implication

tenor

message

essence

substance

relevance

When you are riding a bicycle at night, your bicycle's reflectors help people in cars see your bicycle how do bicycle reflectors work

A. They are made of a special material that gives off its own light
B. They are hooked up to batteries that allow them to produce light
C. They bounce light back from other sources
D. They are coverd with paint that glows in the dark

Answers

Answer: C
Explanation: the material of the bicycle reflectors cannot produce its own light. When light hits the material, it bounces back off of it creating the illusion of a light.

;_; help please i need help TwT

Answers

Answer:

it's a day I think so ........

Answer:

Lunar cycle

Explanation:

Year is the amount of time for the Earth to rotate a complete circle around the sun.

Lunar cycle (moon phases) is the rotation of the Moon around the Earth.

Day is the time for the Earth to rotate on its own axis completely.

Solar cycle is the changes that the sun's electric field goes through about every 11 years.


10. Which of the following group of colors of the visible light is listed from
lowest to highest frequency?
A. Blue, green, red
C. Red, violet, green
B. Green, blue, red
D. Red, green, violet​

Answers

Answer:

The correct answer is - D. Red, green, violet​.

Explanation:

Visible light is the spectrum of light that can be seen by the naked eyes of humans without any equipment. This spectrum has various frequency light that helps us see things in color. The frequency of light ranges between seven different colors in which violet has the highest frequency and red has the lowest.

The different frequencies are as follows:

color               frequency

red (limit) 1.77

red                  1.91

orange  2.06

yellow  2.14

green  2.25

cyan  2.48

blue          2.75

violet (limit) 3.10

On this basis of this the group of colors of the visible light is listed from

lowest to the highest frequency - Red, green, violet​

This part of the wind turbine converts the mechanical energy of the rotor/shaft captured from the wind into_________ energy
O mechanical
O potential
O electrical
O nuclear

Answers

electrical energy would be the right answer.

Explanation:

I'm having with chemistry assignments I need a help

Answers

Answer:

the question please? illl help

What would happen to the moon’s interia were to increase? A the moon will fly into space. B the moon will smash into Earth. C the moon will smash into pluto.

Answers

Answer:

B

Explanation:

The nature particle model of matter describe the property of solid, liquid and gas in molecular level. Which of the given statements below is TRUE?
A. Matter is made up of large particles.
B. Particles of matter have spaces between them.
C. Particles of matter are not moving all the time.
D. The particles of matter do not attract each other.​

Answers

Answer:

B. Particles of matter have spaces between them.

Explanation:

The particle nature model of matter is an model used to explain the properties and nature of matter. The statements of the particle nature model of matter are as follows :

1. Matter is made of small particles of atoms or molecules.

2. The particles of matter have space between them. The spaces between the particles are least in solids as they are closely packed together but are greatest in gases whose particles are far apart from each other.

3. The particles of matter are in constant motion at all times. Solids particles are not free to move due to strong molecular forces between the particles, but are constantly vibrating in their mean positions. Liquid particles free to move due to lesser molecular forces while gas molecules which have negligible intermolecular forces have the greatest ability to move.

4. The particles of matter are attracted to each other by intermolecular forces. These forces are greatest in solids and least in gases.

The correct option is B.

9. The broken appearance of pencil in a glass of water is due
to the refraction of light in water,
yes or no​

Answers

Yes it is due to refraction of light in water

In the endothermic reaction below, how would adding heat affect the equilibrium of the system? (2 points)
A + B + energy ⇄ + D

a. shift it to the left toward the reactants
b. shift it to the right toward the products
c. equally create more products and reactants
d. it would have no effect

Answers

the answer will be B

1. What volume of gas (NU) is formed by the interaction of 13 g of zinc with 400 g of sulfuric acid solution with a mass fraction of 10%?

Answers

Answer:

4.5L of gas are produced

Explanation:

Based on the reaction:

Zn + H2SO4 → ZnSO4 + H2(g)

Where 1 mole of Zn reacts with 1 mole of sulfuric acid to produce 1 mole of H2, the gas

To solve this question we must find the moles of each reactant in order to find limiting reactant and, thus, the moles of H2 produced. Then using PV=nRT we can find the volume of the gas:

Moles Zn -Molar mass: 65.38g/mol-

13g * (1mol / 65.38g) = 0.20 moles Zn

Moles H2SO4 -Molar mass: 98g/mol-

400g * 10% = 40g H2SO4 * (1mol / 98g) = 0.41 moles H2SO4

As the ratio of the reaction is 1:1, the limiting reactant is Zn and the moles produced of H2 are 0.20 moles

Using PV = nRT; V = nRT/ P

Where V is the volume of the gas

n are the moles = 0.20 moles

R is gas constant = 0.082atmL/molK

T is absolute temperature = 273.15K at STP

P is pressure = 1atm at STP

V = 0.20mol*0.082atmL/molK*273.15K / 1atm

V = 4.5L of gas are produced

How many grams of CuSO4 are required to make a 5.0 ml solution that has a concentration of 400 mg/ml?

Answers

Answer:  molecular weight of CUSO4 or grams. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles CUSO4, or 346.10221 grams. Note that rounding errors may occur, so always check the results.

Explanation:

If four hydrogen atoms react with two hydrogen atoms, how many atoms
will be in the product?

Answers

Answer:6

Explanation:

The number of atoms in the product will be equal to six.

What is the balanced chemical equation?

A chemical equation represents a chemical reaction in terms of the chemical symbols of the substances. A chemical equation of a reaction posses of participated reactants, formed products, and an arrow to indicate the direction of the chemical reaction.

The chemical equation of a reaction in which the number of atoms of each element is equal on either side of the equation is known as a balanced chemical equation.

The law of conservation of mass is always followed by a balancing of a chemical equation. By following this law, the total mass of all the elements on the reactant side will be equal to the total mass of all elements on the product side in a balanced chemical equation.

Therefore, the number of hydrogen atoms on the reactant side is equal to 6 (4+2) and the same number of atoms will be on the product side.

Learn more about the balanced chemical equation, here:

brainly.com/question/15052184

#SPJ2

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