Hazel used 45. 7grams of nickel II nitrate Ni(NO3)2 to make a 1. 25M solution. How much water is required to make this solution?



Solve for the GFM=

Li+ has a smaller ionic radius than K+

and smaller molecules have more collisions/interactions between each other

In the case of ion-solvent interactions, the state in which the interac-tions exist is an obvious one; it is the situation in which ions are inside the solvent.

Learn more about Ion-solvent interaction here:

https://brainly.com/question/21307101

#SPJ4

The correct question to ask about group 16 elements is; "Will group 16 elements gain electrons to bond with group 2 in an XY format?"

A chemical element is a species of atoms that have a given number of protons in their nuclei, including the pure substance consisting only of that species.

Group 16 elements are known to be divalent and they form divalent negative ions.

The periodic table is arranged in groups and periods. All elements in the same group must have the same number of valence electrons. All elements in group 2 have six valence electrons.

In conclusion, if a student is to write an ionic compound’s formula that contains a group 16/6a nonmetal. The student must ask :

Will group 16 elements gain electrons to bond with group 2 in an XY format?".

Learn more about elements at:

https://brainly.com/question/20096027

The full question is:

What question would a student need to ask to form a compound with Group 16 nonmetals

A.

Will group 16 elements lose electrons to bond with group 2 in an XY format?

B.

Will group 16 elements gain electrons to bond with group 1 in an XY2 format?

C.

Will group 16 elements gain electrons to bond with group 2 in an XY format?

D.

Will group 16 elements lose electrons to bond with group 1 in an X2Y format?

The reaction feels hot even though the reactants are losing energy because the energy released by the reaction is transferred to the surroundings in the form of heat, increasing the temperature of the surrounding medium.

During a chemical reaction, chemical bonds are broken and new ones are formed, and this process involves energy changes. If the energy required to break the bonds is greater than the energy released by the formation of new bonds, the reaction is endothermic and the surroundings absorb energy.

Conversely, if the energy released by the formation of new bonds is greater than the energy required to break the bonds, the reaction is exothermic and the surroundings receive energy in the form of heat.

When an exothermic reaction occurs, the energy released is transferred to the surrounding medium, such as air or water, increasing the temperature of the medium. This increase in temperature is felt as heat, even though the reactants are losing energy.

To know more about chemical bonds click on the below link:

https://brainly.com/question/15444131#

#SPJ11

The answer would be the round- bottom flask. When setting up the distillation setup and the round-bottom flask port serves as the water inlet.

As the round-bottom flasks is used for the boiling and also known as boiling flask.

Hence it permit the flask to have a uniform heating all over the process. The heat dispense equally in the entire process.

It is also called as RB flask.

Discovered by Emil Erlenmeyer and this equipment made from Pyrex glass.

Round-bottom flasks are the kind of flasks having spherical bottoms used as experimental glassware, generally used for chemical or biochemical work.

Hence, The port farthest from the RB flask.

To know more about Round bottom flask here :

https://brainly.com/question/27835280?referrer=searchResults

#SPJ4

The temperature of mixed water is 45.230C under the conditions stated.

T(final) = (m1 T1 + m2 T2) / (m1 + m2), at which m1 and m2 are indeed the weight training of the water in the initial and 2nd canisters, T1 is the water temperature in the first container, and T2 is the water temperature in the second container, can be used to determine the final the water's temperature mixture.

The given parameters;

mass of the cold water, m = 100 g

initial temperature of the water, t₁ = 22.6 ⁰C

initial temperature of the hot water, t₂ = 75.4⁰ C

75 g is the hot water's mass.

specific heat capacity of water is 4.184 J/g⁰C

The mixture's final temperature is estimated as follows;

Based on the principle of conservation of energy;

Heat received by the ice water equals heat lost by the hot water.

mcΔθ₂ = mcΔθ₁

75 x 4.184 x (75.4 - T) = 100 x 4.184 x (T - 22.6)

75 x (75.4 - T) = 100 x (T - 22.6)

(75.4 - T) = 1.333(T - 22.6)

75.4 - T = 1.333T - 30.1258

75.4 + 30.1258 = 1.333T + T

105.5258 = 2.333T

T = 45.2318⁰C

To know more about temperature visit :

https://brainly.com/question/29386637

#SPJ4

The total hardness of a bottled water sample titrated is expressed as though it was entirely due to Ca2, the Calcium ion. Therefore, to find the number of moles of Ca2 present in the bottled water sample titrated, it is assumed that the total hardness is entirely due to Ca2.

Therefore, it is convenient to express total hardness as though it were entirely due to calcium. This makes it easier to compare different water samples because it provides a common reference point.The number of moles of Ca2 present in the bottled water sample titrated can be determined using the following equation:Ca2 + 2HCO3- → CaCO3↓ + CO2↑ + H2Owhere Ca2 is the Calcium ion, HCO3- is the Bicarbonate ion, CaCO3 is Calcium carbonate, CO2 is Carbon dioxide, and H2O is water.To find the number of moles of Ca2 present in the bottled water sample titrated, we need to determine the number of moles of HCO3- used in the titration.

This can be done by using the following equation:n(HCO3-) = V(HCl) x M(HCl) x 2where n(HCO3-) is the number of moles of HCO3- used in the titration, V(HCl) is the volume of hydrochloric acid used, M(HCl) is the molarity of the hydrochloric acid, and 2 is the stoichiometric coefficient of HCO3- in the reaction.To find the number of moles of Ca2 present in the bottled water sample titrated, we can use the following equation:n(Ca2+) = n(HCO3-) / 2where n(Ca2+) is the number of moles of Ca2 present in the bottled water sample titrated.

learn more about titrated

https://brainly.com/question/186765

#SPJ11

Answer:

This question is incomplete

Explanation:

This question is incomplete. However, the beaker that contained some water before NaOH were added means that the resulting solution in that beaker will be more dilute. When this diluted sodium hydroxide solution is added to HCl (not hci), the reaction below occurs

HCl + NaOH ⇒ NaCl + H₂O

The reaction above is a neutralization reaction. The concentration of the acid (HCl) will reduce when a base (sodium hydroxide) is added and will also reduce more because of the presence of more water (in the base) which normally reduces the concentration of ions present in an acid or a base to become more dilute.

Answer:

\(31.8\ moles = 1.91 * 10^{25}\ molecules\)

Explanation:

Given

31.8 moles of water

Required

Determine the number of molecule

In standard units: 1 molecule of water is:

\(1\ mole = 6.022 * 10^{23}\ molecules\)

Multiply both sides by 31.8

\(31.8 * 1\ mole = 31.8 * 6.022 * 10^{23}\ molecules\)

\(31.8\ moles = 31.8 * 6.022 * 10^{23}\ molecules\)

\(31.8\ moles = 191.4996 * 10^{23}\ molecules\)

Express 191.4996 as a standard form

\(31.8\ moles = 1.914996 * 10^2 * 10^{23}\ molecules\)

Apply law of indices:

\(31.8\ moles = 1.914996 * 10^{2+23}\ molecules\)

\(31.8\ moles = 1.914996 * 10^{25}\ molecules\)

Approximate:

\(31.8\ moles = 1.91 * 10^{25}\ molecules\)

Answer:

It doesn't look like any of them but the best answer is SI

Explanation:

The ΔHf° (heat of formation) for acetic acid is approximately -1119.29 kJ/mole.

To find the ΔHf° (heat of formation) for acetic acid (HC₂H₃O₂), use Hess's Law and the given thermochemical data.

The given equation for the combustion of acetic acid is:

HC₂H₃O₂(l) + 2O₂(g) → 2CO₂(g) + 2H₂O(l) ΔH = -875 kJ/mole

The formation of carbon dioxide (CO₂):

C(s) + O₂(g) → CO₂(g) ΔH = -394.51 kJ/mole

The formation of water (H₂O):

H₂(g) + 1/2O₂(g) → H₂O(l) ΔH = -285.8 kJ/mole

Now, rearrange these reactions to obtain the formation reaction for acetic acid:

HC₂H₃O₂(l) = C(s) + 2H₂(g) + 1/2O₂(g)

Adding the enthalpy changes of the individual reactions:

ΔHf° (acetic acid) = ΣΔHf° (products) - ΣΔHf° (reactants)

ΔHf° (acetic acid) = [2ΔHf° (CO₂)] + [2ΔHf° (H₂O)] - [ΔHf° (C)] - [ΔHf° (H₂)] - [1/2ΔHf° (O₂)]

Substituting the values from the given thermochemical data:

ΔHf° (acetic acid) = [2(-394.51 kJ/mole)] + [2(-285.8 kJ/mole)] - [0 kJ/mole] - [0 kJ/mole] - [1/2(-875 kJ/mole)]

Calculating the expression:

ΔHf° (acetic acid) ≈ -1119.29 kJ/mole

Therefore, the ΔHf° (heat of formation) for acetic acid is approximately -1119.29 kJ/mole.

Find out more on thermochemical data here: https://brainly.com/question/3298364

#SPJ1

Answer:

hello

the answer to the question is diagram B

Wascana Chemicals should use emissions reduction technologies to reduce the amount of sulphur dioxide emitted during paint production.

To comply with the Ministry of Environment's directive, Wascana Chemicals, a paint manufacturer, needs to reduce the amount of sulphur dioxide released during paint production. This can be accomplished through the use of emissions reduction technology, such as scrubbers, catalytic converters, or gasification systems.Scrubbers are devices that use a wet process to remove pollutants from gas streams. The gas stream is forced through a scrubbing solution that traps pollutants, including sulphur dioxide.Catalytic converters, on the other hand, use a chemical process to transform pollutants into less harmful substances. Gasification systems convert solid or liquid materials into a gas, which can be combusted to generate energy.

In conclusion, to comply with the Ministry of Environment's emissions reduction regulations, Wascana Chemicals should consider implementing one or more emissions reduction technologies such as scrubbers, catalytic converters, or gasification systems to reduce the amount of sulphur dioxide emitted during paint production.

To know more about Scrubbers visit:

brainly.com/question/30042938

#SPJ11

In a neutral atom, the number of electrons equal to the number of protons

Answer:

The motion towards or away from us based on the Doppler effect and corresponding red shift or blue shift.

Explanation:

The emission and absorption spectra demonstrates the lines where light has been absorbed by the atoms. The spikes can be observed due to atoms releasing photons at those wavelengths. Infrared and ultra violet waves can be observed during spectroscopy.

Answer:

can we get more of the problem?

Answer: I think they get will paralysed and some of the impulses may not be able to get through.

NMR spectroscopy, or nuclear magnetic resonance spectroscopy, is a very important tool in the determination of organic structures. This technique relies on the interaction of a particular nucleus with a magnetic field followed by absorption of energy of a specific frequency depending on chemical environment of the nucleus.

what is NMR spectroscopy?

NMR spectroscopy can be defined as an indispensable tool which applies magnetic field to an atomic nucleus (e.g., the most common stable isotopes 1H, 13C, 15N) and radio frequency pulses to characterize resonant frequency of that atomic nucleus according to its chemical or environmental surroundings

learn more about NMR spectroscopy at

https://brainly.com/question/17564948

#SPJ4

, the concentration of the original hydrogen bromide (HBr) solution is [HBr]original = 19.5 ml.  

To find the concentration of the original hydrogen bromide (HBr) solution, we can use the following equation:

concentration of HBr = concentration of HBr at the equivalence point / volume of HBr at the equivalence point

From the information given, we know that the volume of HBr at the equivalence point is 36.0 ml. Therefore, we can solve for the concentration of the original HBr solution as follows:

[HBr]original = [HBr]equivalence point / 36.0 ml

We are given that the volume of HBr at the equivalence point is 36.0 ml, so we can write:

[HBr]original = [HBr]equivalence point / 36.0 ml

Now we can substitute the value of the volume of HBr at the equivalence point into the above equation:

[HBr]original = [HBr]equivalence point / 36.0 ml

[HBr]equivalence point = [HBr]original * 36.0 ml

Now we can solve for the concentration of the original HBr solution as follows:

[HBr]original = [HBr]equivalence point / 36.0 ml

[HBr]original = [HBr]equivalence point

We can simplify the above equation by dividing both sides by the molarity of HBr, which is the concentration per unit volume. The molarity of HBr can be calculated by dividing the concentration of HBr by the volume of the solution.

Therefore, we can write: [HBr]original = [HBr]equivalence point * volume of HBr / molarity of HBr

We can substitute the value of the molarity of HBr, which is the concentration per unit volume, into the above equation:

[HBr]original = [HBr]equivalence point * volume of HBr / molarity of HBr

[HBr]original = [HBr]equivalence point * 36.0 ml / 1.8 mol/L

We can simplify the above equation by dividing both sides by the molarity of HBr, which is the concentration per unit volume. The molarity of HBr can be calculated by dividing the concentration of HBr by the volume of the solution.

Therefore, we can write: [HBr]original = [HBr]equivalence point * 36.0 ml / 1.8 mol/L / 1.8 mol/L

[HBr]original = [HBr]equivalence point * 19.5 ml

Therefore, the concentration of the original hydrogen bromide (HBr) solution is [HBr]original = 19.5 ml.  

Learn more about hydrogen bromide

https://brainly.com/question/29765708

#SPJ4

Answer:

0.05 moles of Ca(OH)2

Explanation:

The formula for molarity is: mol/L = M

First, convert 200.0 mL to L.

200 mL/1000 = 0.2 L

Next, plug in the values given.

mol/0.2 = 0.250

Rearrange the equation.

mol = 0.2*0.250

mol = 0.05

If you'd like to check it, simply plug in 0.05 to mol and divide it by 0.2. In theory, you should get 0.250.

Answer:pH decreases pH = about 8.9

Explanation:

To produce 84.3 g of silver chloride, we need 3.53 x 10^23 formula units of silver. The number of formula units of silver needed to react with chlorine to produce 84.3 g of silver chloride, we first need to determine the molar mass of silver chloride.

The molar mass of silver chloride (AgCl) can be calculated by adding the atomic masses of silver (Ag) and chlorine (Cl) together. The atomic mass of silver is 107.87 g/mol, and the atomic mass of chlorine is 35.45 g/mol.
The molar mass of AgCl = 107.87 g/mol + 35.45 g/mol = 143.32 g/mol.

moles = mass/molar mass
So, moles of AgCl = 84.3 g / 143.32 g/mol = 0.588 moles.
Since the balanced chemical equation for the reaction between silver and chlorine to form silver chloride is:
2 Ag + Cl2 → 2 AgCl
We know that 2 moles of Ag react with 1 mole of Cl2 to produce 2 moles of AgCl.

The number of moles of Ag required to produce 0.588 moles of AgCl is: moles of Ag = 2/2 x moles of AgCl = 0.588 moles of Ag . The number of formula units of Ag required can be calculated by multiplying the number of moles of Ag by Avogadro's number (6.022 x 10^23).
Number of formula units of Ag = 0.588 moles x 6.022 x 10^23 = 3.53 x 10^23 formula units of Ag.

To know more about chlorine visit:-

https://brainly.com/question/31560014

#SPJ11

Answer:

The chemical equation 2AgNO3 + Mg(OH)2 → 2AgOH + Mg(NO3)2 represents a double replacement reaction. In this type of reaction, the cations and anions of two different compounds exchange places with each other to form two new compounds. In the given equation, silver nitrate (AgNO3) reacts with magnesium hydroxide (Mg(OH)2) to form silver hydroxide (AgOH) and magnesium nitrate (Mg(NO3)2).

Answer:

double replacement

Explanation:

The sensation of touch is blocked from signaling to the brain because peripheral nerves are producing numbness.

The brain is a sophisticated organ that manages every bodily function as well as thought, memory, emotion, touch, motor skills, vision, breathing, temperature, and hunger. The central nervous system, or CNS, is made up of the spinal cord that emerges from the brain.

The cerebellum, cerebrum, and brainstem are the three major components of the brain. The brain's largest structure, the cerebrum, is made up of the right and left hemispheres. Higher cognitive tasks include interpreting touch, vision, hearing, speech, reasoning, emotions, learning, and fine motor control, among others.

To know more about peripheral nerves :

https://brainly.com/question/24232574

#SPJ9

The color of light emitted by an excited atom is determined by the difference in energy levels between the excited state and the lower energy state the electron returns to.

The color of light is determined by the location of an electron in an excited atom through the following process:

1. When an atom absorbs energy, its electrons get excited and jump to higher energy levels.
2. These excited electrons are unstable and will eventually return to their original lower energy levels.
3. As the electron transitions back to its lower energy level, it releases energy in the form of a photon.
4. The energy of the emitted photon corresponds to the difference between the two energy levels the electron transitioned between.
5. This energy determines the wavelength and, consequently, the color of the light emitted by the atom.
6. Shorter wavelengths (higher energy) correspond to colors in the violet-blue range, while longer wavelengths (lower energy) correspond to colors in the red-orange range.

Learn more about excited atom at https://brainly.com/question/8384785

#SPJ11

If the mass of H₂o is 102. 3g and the initial temp is 23. 1c and the final temp is 26. 0c . The final initial temp is 296.67 K or 23.52 °C.

The amount of heat required to raise the temperature of a substance by 1°C is known as specific heat capacity of that substance.

Given that,

The mass of water (H₂O ), m = 102.3 g.

The initial temperature is given by T₁ = 23.1°C = 296.1 K

The finial temperature is T₂= 26°C =299 K

Therefore, change in temperature,ΔT = T₂- T₁= 299k - 296.1k=2.9

The final initial temperature is given as

= mΔT

=102.3 ×2.9

=296.67 K

=23.52 °C

To know more about temperature change here

https://brainly.com/question/25274060

#SPJ4

The correct option is (C)0.00125.

The molarity of KOH is 0.00125 M when 15.0 mL of KOH reacts with 25.0 mL of HNO3.

Given that,

Neutralization occurs when 15.0 mL of KOH reacts with 25.0 mL of HNO3.

Molarity of HNO3 is 0.750 M.

Volume of HNO3 is 25.0 mL

Now, let's calculate the number of moles of HNO3 present in 25.0 mL of 0.750 M HNO3.

The formula for calculating the number of moles is:

Number of moles = Molarity × Volume / 1000

                             = 0.750 mol/L × 25.0 mL / 1000

                             = 0.01875 mol

Thus, the number of moles of HNO3 present in 25.0 mL of 0.750 M HNO3 is 0.01875 mol.

Now, let's find the molarity of KOH using the balanced chemical equation of the neutralization reaction.

KOH + HNO3 → KNO3 + H2O

We can see from the balanced chemical equation that 1 mole of KOH reacts with 1 mole of HNO3.

So, the number of moles of KOH required to neutralize 0.01875 mol of HNO3 is 0.01875 mol.

Now, let's calculate the molarity of KOH using the formula:

Molarity = Number of moles / Volume / 1000

             = 0.01875 mol / 15.0 mL / 1000

             = 0.00125 M

Therefore, the molarity of KOH is 0.00125 M when 15.0 mL of KOH reacts with 25.0 mL of HNO3.

Hence, the correct option is (C)0.00125.

Learn more about molarity from this link:

https://brainly.com/question/30404105

#SPJ11