If some salt were accidently spilled as it was transferred from the balance to the cup would your calculated enthalpy of solution of the salt be too high or too low

Answers

Answer 1

Answer:

It would be to low

Explanation:

Answer 2

If some salt were accidently spilled as it was transferred from  balance to  cup  calculated enthalpy of solution of salt be too low as there will be loss in mass  which would lead less solubility of salt and hence less enthalpy.

What is solubility?

Solubility is defined as the ability of a substance which is basically solute to form a solution with another substance. There is an extent to which a substance is soluble in a particular solvent. This is generally measured as the concentration of a solute present in a saturated solution.

The solubility mainly depends on the composition of solute and solvent ,its pH and presence of other dissolved substance. It is also dependent on temperature and pressure which is maintained.Concept of solubility is not valid for chemical reactions which are irreversible. The dependency of solubility on various factors is due to interactions between the particles, molecule or ions.

Learn more about solubility,here:

https://brainly.com/question/29589228

#SPJ5


Related Questions

newsela what is a chemical reaction

Answers

Answer:

A chemical reaction is a process in which the chemical bonds of a substance are broken or rearranged. One or more substances are formed with different properties because of this chemical reaction. Examples of chemical reactions are rust, combustion, and oxidation.

Balancee las ecuaciones químicas por el método de tanteo e identifique que tipo de reacción es: 1.1.- Cloruro férrico acuoso reacciona con carbonato de sodio sólido para formar carbonato férrico sólido y cloruro de sodio acuoso.

Answers

Respuesta:

2 FeCl₃(aq) + 3 Na₂CO₃(s) ⇒ Fe₂(CO₃)₃(s) + 6 NaCl(aq)

Explicación:

Consideremos la ecuación no balanceada que ocurre cuando cloruro férrico acuoso reacciona con carbonato de sodio sólido para formar carbonato férrico sólido y cloruro de sodio acuoso. Esta es una reacción de doble desplazamiento.

FeCl₃(aq) + Na₂CO₃(s) ⇒ Fe₂(CO₃)₃(s) + NaCl(aq)

Vamos a usar el método de tanteo. Empezaremos balanceando los átomos de C, multiplicando Na₂CO₃ por 3.

FeCl₃(aq) + 3 Na₂CO₃(s) ⇒ Fe₂(CO₃)₃(s) + NaCl(aq)

Luego, balancearemos los átomos de Fe, multiplicando FeCl₃ por 2.

2 FeCl₃(aq) + 3 Na₂CO₃(s) ⇒ Fe₂(CO₃)₃(s) + NaCl(aq)

Finalmente, obtendremos la ecuación balanceada, multiplicando NaCl por 6.

2 FeCl₃(aq) + 3 Na₂CO₃(s) ⇒ Fe₂(CO₃)₃(s) + 6 NaCl(aq)

U SEE WHAT IT SAYS~~~~~~~~
UwUwUwUwUwUwUwUwUwUwUwUwUwuWuWUWUWUWU

Answers

Uwuwuwuwuuwuwuwuwuuw

Where must the moon be in its orbit for the full moon phase to be visible?
A
exactly crossing Earth's orbit of the sun

B
on the side of Earth opposite the sun

C
between Earth and the sun

D
directly above one of Earth's poles

Answers

Answer:

A.EXACTLY CROSSING EARTH'S ORBIT OF THE SUN

The moon must be exactly crossing Earth's orbit of the sun for the full moon phase to be visible.

What is Full moon?

This is a situation where the Sun and the Moon are aligned on opposite sides of Earth with a corresponding illumination from the Sun.

It also occurs when the moon crosses the Earth's orbit of the sun and is denoted as option A.

Read more about Full moon here https://brainly.com/question/649027

#SPJ2

Find the number of grams in 16.95 mol hydrogen peroxide (H2O2). Round your
answer to two decimal places and be sure to include the proper units.

Answers

Answer: There are 576.46 number of grams present in 16.95 mol hydrogen peroxide [tex](H_{2}O_{2})[/tex].

Explanation:

Number of moles is defined as the mass of substance divided by its molar mass.

The molar mass of [tex]H_{2}O_{2}[/tex] is 34.01 g/mol. Hence, mass of hydrogen peroxide present in 16.95 moles is calculated as follows.

[tex]Moles = \frac{mass}{molarmass}\\16.95 mol = \frac{mass}{34.01 g/mol}\\mass = 576.46 g[/tex]

Thus, we can conclude that there are 576.46 number of grams present in 16.95 mol hydrogen peroxide [tex](H_{2}O_{2})[/tex].

what is the balanced equation of these two

(b) Mn2+ + 2 e- → Mn ℰ° = −1.18 V
Fe3+ + 3 e- → Fe ℰ° = −0.036 V

Answers

Answer:

(b) Mn2+ + 2 e- →2 Mn ℰ° = −1.18 V

Fe3+ + 3 e- → 3Fe ℰ° = −0.036 V

all metals are minerals
a. true
b. false​

Answers

Answer:

B. False is the rite answer

Calculate the volume that 12.5 g of carbon dioxide gas will occupy at a temperature of 45 degrees Celsius and a pressure of 1.20 atm

Answers

Answer:

[tex]V=6.2L[/tex]

Explanation:

Hello there!

In this case, according to the given information, it is possible for us to realize that we need to use the ideal gas equation in order to calculate the volume of CO2 but firstly calculating the moles:

[tex]n=\frac{12.5g}{44.01g/mol}=0.284mol[/tex]

Then, we proceed with the ideal gas equation to solve for volume:

[tex]PV=nRT=\\\\V=\frac{nRT}{P}\\\\V=\frac{0.284mol*0.08206\frac{atm*L}{mol*K}*(45+273.15)K}{1.20atm}\\\\V=6.2L[/tex]

Regards!

what type of reaction is Pb + CuCl2 ---> PbCl2 + Cu​

Answers

The above reaction is a Single displacement reaction , in which lead (Pb) being more reactive displaces Copper (Cu) from its compound [tex](\mathrm{CuCl_2})[/tex] and forms Lead Chloride [tex](\mathrm{PbCl_2})[/tex].

[tex] \boxed{\mathrm{Pb + CuCl_2 \rightarrow PbCl_2 + Cu}}[/tex]

_____________________________

[tex]\mathrm{ \#TeeNForeveR} \: ☃[/tex]

Single displacement reaction

How many atoms are in 5.9 g of N2?

Answers

Answer:

Number of atoms in 5.9 g of N2 = 1.268 *10^23

Explanation:

Weight of one mole of N2 is 28.0134 g

In one mole of N2, number of atoms = 6.023 *10^23

Number of atoms in 28.0134 g (one mole) of N2 =  6.023 *10^23

Number of atoms in 1 g of N2 = 6.023 *10^23/28.0134

Number of atoms in 5.9 g of N2 = 6.023 *10^23/28.0134 * 5.9

= 1.268 *10^23

Will lithium become a cation or anion?

Answers

Answer:

Lithium Cation is a monovalent cation that is metabolized much like sodium and is important in many cellular functions inside or on the surface of cells. lithium has a single valence electron that is easily given up to form a cation. Because of this, lithium is a good conductor of heat and electricity as well as a highly reactive element, though it is the least reactive of the alkali metals

(This is rly for science but there’s no category for that) Which statement best describes how scientists and engineers work together
in the research and development cycle?
O A. Engineers come up with scientific questions when they are
developing their design, and scientists do research to answer
them.
O B. Scientists test designs made by engineers and then use the
results to improve the designs.
C. Scientists develop a new technology, and then engineers test it by
doing experiments.
D. Engineers make a scientific discovery, and then scientists perform
research to verify it.

Answers

Answer:

A.  Engineers come up with scientific questions when they are developing their design, and scientists do research to answer them.

Does melting sea ice in the Arctic increase sea level directly? Why or why not? How would melting over Antarctica be different?

Answers

Explanation:

The ice melting would make more water because ice is water and if it melts it make water.

hope this helps :)

Help help please help help!!

Answers

Answer:

I believe the answer is numbers

Yeah it should be numbers!! good luck happy day!

Which are three ways water reaches the atmosphere?
A. sublimation, condensation, transpiration
B. evaporation, radiation, and condensation
C. transpiration, evaporation, and sublimation

Answers

Answer:

C. Transpiration, evaporation, and sublimation.

Explanation:

thank you to the internet.

C .....................

A 5.0 mole sample of gas has 54 mmHg of pressure at 273K. What is the volume of the gas?


(Round your answer to the correct number of significant figures)

Answers

Answer:

here's the answer hope it helps

A student measured the pH of his soda and found it to be 4.5.


Calculate the [H3O+] in the soda.

Answers

Answer:

0.0111 M

Explanation:

pH = 4.5

[H3O+] = ?

Relationship between both quantitiesis given by:

pH = -log₁₀ [H3O+]

-pH = log₁₀ [H3O+]

-4.5 =  log₁₀ [H3O+]

[H3O+]  = e ^ (-4.5)

[H3O+] = 0.0111 M

2. what is the factor in an experiment that a scientist wants to observe, which may change in response to
the manipulated variable; also known as a dependent variable​

Answers

I believe the answer is observation

i n the notatation,5N2 what is the number of nitogen atoms​

Answers

Answer:

10 nitrogens

Explanation:

The 2 is the number of nitrogens in a molecule of N2. There are 2 of them.

The 5 is a whole different critter. It tells you that it was part of an equation and it took 5 molecules of Nitrogen to balance the equation. You only see numbers to the right of a molecule when the molecule is in an equation.

5 (2)=10

what is an element in science​

Answers

You could put carbon or oxygen

Answer: Chemical element, also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed.

Explanation: I hope that was helpful!

Copper is a product of the reaction that occurs when dry ammonia is passed over a sample of heated copper(II) oxide. The equation for the reaction is given below. 2NH3 + 3CuO --> 3Cu + 3H2O + N2 Calculate the mass of copper produced if 0.12 dm^3 of nitrogen is produced at room temperature and pressure (rtp). (Relative atomic mass of Cu = 64; One mole of gas occupies 24 dm3 at rtp​

Answers

Answer:

0.12 dm^3 x (1 mol/24 dm^3) = ? mols N2

mols Cu = ? mols N2 x (3 mols Cu/1 mol N2) = ?

Then g Cu = mols Cu x atomic mass Cu = ?

Un átomo neutro tiene número atómico 1 y número másico 3. Indica cuántos protones, neutrones y electrones tiene.

Answers

Answer:

El átomo podes 1 protón, 1 electrón y 2 neutrones.

Explanation:

Cada elemento químico se caracteriza por el número de protones de su núcleo, que se denomina número atómico Z. Es decir, el número atómico​ de un elemento químico es el número total de protones que tiene cada átomo de ese elemento.

Los protones poseen carga positiva y se encuentran en el núcleo, en torno al cual se mueven otras partículas con carga eléctrica negativa que son los electrones. Así, el átomo es eléctricamente neutro, ya que la carga positiva de los protones está compensada por la carga negativa de los electrones.  Entonces, en todo átomo neutro el número de protones del núcleo es igual al de electrones de sus orbitales.

En este caso, un átomo neutro tiene número atómico 1. Entonces la cantidad de protones y electrones presentes en el átomo es 1.

En el núcleo de cada elemento, además de protones, también es posible encontrar neutrones, cuyo número puede variar. La masa atómica (A) se obtiene sumando el número de protones y de neutrones de un núcleo determinado:

Número másico (A) = número de protones + número de neutrones

En este caso, el átomo neutro posee 1 protón y su número másico es 3. Entonces:

3= 1 + número de neutrones

Resolviendo:

3 - 1= número de neutrones

2= número de neutrones

Entonces, el átomo podes 1 protón, 1 electrón y 2 neutrones.

How many atoms are in 2.2 moles of Zinc?

Answers

There are 1 .5 million atoms in moles

Measurements of half-life make radioactive isotopes useful for

Answers

The half-lives of certain types of radioisotopes are very useful to know. They allow us to determine the ages of very old artifacts. Scientists can use the half-life of Carbon-14 to determine the approximate age of organic objects less than 40,000 years old.

How does heart failure affect the lungs?
o Carbon dioxide enters the lungs.
Too much oxygen enters the lungs.
Blood leaves the lungs.
o Fluid can build up in the lungs.

Answers

Answer:

Pulmonary oedema can be caused by lung disease, but when heart failure is more serious, the pressure of blood in the lungs builds-up, pushing fluid into the air sacs. This is how heart failure can lead to respiratory failure. People with pulmonary oedema will feel breathless, weak and unwell.

_____Is a non renewable fuel created from the remains of living organisms.

Electricity

Biofuel

Fossil fuel

Nuclear energy

Answers

Biofuel is the answer
Actually the answer is fossil fuel

Write the formula for the following compound
sodium chloride

Answers

Answer:

NaCl

Explanation:

Na is the symbol of sodium. Cl is the symbol of chlorine

Consider the following statements about weeding and identify the incorrect one.

a) Weeding is best done during tilling itself.
b) Weeding is the process of growing weed.
c) Weeding is the process of removal of weeds.
d) Weeding is usually done manually or by using weedicides.

Answers

Answer:

b) Weeding is the process of growing weed

Explanation:

Wedding is an agricultural process carried out to ensure maximum you won't do. It is the process by which weeds i.e. unwanted plants are removed.

As rightly stated in the question;

- Weeding is either done by manual means e.g Cutlasses or use of weedicides, which are chemicals.

- Weeding is best done during tiling operations.

The incorrect option is that "Weeding is the process of growing weed" rather it is a process of removing weed.

PLS HELP FOR FINAL!!!!!!!!!!!!!!

Answers

Answer:

The answer is Ernest Rutherford.

Answer :

Ernest Rutherford

Hope I help

Good Luck

Define An Atom.
Ty!!!​

Answers

Atom :

=> the smallest particle of a chemical element that can exist.

-------☆゚.・。゚ᵴɒƙυᴚᴀ_ƨȶäᴎ❀

Other Questions
In ________ therapies, several people who share a common problem all meet regularly with a therapist to help themselves and one another; the therapist acts as a facilitator.a technology-basedb integrativec evidence-basedd group (Economics) can anybody help me on this please and thank you!!! A drawer contains a blue shirt, a black shirt, and a white shirt. Another drawer contains a blue pair of pants and a black pair of pants. One shirt and one pair of pants are chosen at random.How many different possible outcomes are there?I will mark brainiest on whoever gets it right. Plz help.Thank u soooooo muchhh A monarch butterfly averages about 50 miles per day on its migration to Mexico.a. Complete the ratio table to show rates that are equivalent to 50 miles per day.Time (days)11N48Distance (miles) 50 I WILL MARK BRAINLIEST DO NOT GUESS OR ATTACH FILE OR I WILL REPORTMara spins this spinner and rolls one six-sided die. What is the probability of spinning a 3 and rolling a 3 on the die?(Photo above) Pls help Find the inverse for each relation:1. {(1,-2), (2, 3),(3, -3),(4, 2)} Explain how the light behaves with light through aplastic bulb i need help on this please This stem-and-leaf plot represents the ages of people watching a music concert.How many people are at least 30 years old? In circle F with mZEFG = 30 and EF =30 and EF = 11 units, find the length of arc EG.Round to the nearest hundredth.FGE Pls help i really need it rn- How does drama reveal the plot?A. narrationB. descriptionC. characters' internal thoughtsD. dialogue and action Plz help I will mark brainliest plz Explain the relationship between Victor and Elizabeth Lavenza?, page numbers please! Translate algebraic words to symbols.The quotient of x and yA. XyB. X+yC. X-yD. xly HELP PLZZZZZ OMGGGGGGG PLEASE HELP ASAP!!!! Complete the following chart. Describe the graph of each parabola relative to the graph of y = x2. Indicate the number of units, where applicable. Sketch each graph. Which rule can be used to find the output numbers in this table? No links please. Help me please im giving good feedback!