CHEMISTRY HIGH SCHOOL

How many moles of NaNO, would you need to make 500 mL of a 2.5 M
solution of NaNO?

Answers

Answer 1
Answer:

Answer:

1.25 moles NaNO

Explanation:

Molarity = moles/Volume (L)

moles = Molarity (M) x Volume (L)

M = 2.5 M

V = 500 mL = 0.5L

moles = M x V = 2.5 x 0.5 = 1.25 moles

Related Questions

In the mid-1900s, most scientists used the Bohr atomic model to study atoms. In the Bohr model, electrons move in set paths around the atom's nucleus.In current atomic models, electron clouds are shown around the atom's nucleus. Electron clouds are regions where electrons are likely to be found. What is a limitation of current atomic models as compared to the Bohr atomic model? A. Current atomic models do not indicate the position of the nucleus within the atom's structure. B. Current atomic models do not show how many electrons an atom has. C. Current atomic models do not show where the electron is but only where the electron is likely to be.
What particles in an atom are involved in chemical reactions
Given the boiling point of water which is 81 degrees Celsius, calculate the atmospheric pressure.
Which is a product of a condensation reaction? 1. O2 2. CO2 3. H2 4. H2O
Why might the earths oceans be described as one huge ocean

The net energy released or absorbed during a reversible chemical reaction is equal to(1) the activation energy of the endothermic reaction
(2) the activation energy of the exothermic reaction
(3) the difference between the potential energy of the products and the potential energy of the reactants
(4) the sum of the potential energy of the products and the potential energy of the reactants

Answers

Answer: The correct answer is Option 3.

Explanation:

The net energy absorbed or released in a chemical reaction is known as the total enthalpy change of the reaction. It is written as \Delta H_(rxn)

The formula used to calculate total enthalpy of the reaction is:

\Delta H_(rxn)=\sum H_(products)-\sum H_(reactants)

where,

H_(products) = Potential energy of the products

H_(reactants) = Potential energy of the reactants

Hence, the correct answer is Option 3.
c. The differencece between the potential energy of the products and the potential energy of the reactants

The two subspecialty of astronomy are

Answers

Astrophysics and Planetary science. The former in a nutshell is the study of how stars work, and theories surrounding how celestial bodies operate. Planetary Science is more rooted in contemporary science, as it studies the nature of planets in our solar system and beyond, such as Mars.

The two subspecialty of astronomy are astrophysics and planetaryscience. Correct option is D.

Astronomy is the scientific study of celestial objects, such as stars, planets, galaxies, and other phenomena in the universe. Within the field of astronomy, there are several subspecialties that focus on specific aspects of celestial objects and phenomena.

Astrophysics: Astrophysics is a branch of astronomy that deals with the physical properties, behavior, and interactions of celestial objects. It involves the application of physics principles and theories to understand the nature of stars, galaxies, black holes, and other cosmic phenomena. Astrophysicists study the processes that govern the birth, evolution, and death of stars, as well as the formation and dynamics of galaxies.

Planetary Science: Planetary science is another subspecialty of astronomy that focuses on the study of planets, moons, asteroids, comets, and other objects within our solar system and beyond. Planetary scientists investigate the geology, atmospheres, surfaces, and composition of planets and their satellites. They also study the origin and evolution of planets, the potential for habitability, and the possibility of past or present life on other celestial bodies.

Both astrophysics and planetary science are essential in expanding our understanding of the cosmos. Astrophysics helps us comprehend the fundamental principles and processes that govern the entire universe, while planetary science provides insights into the unique characteristics and properties of the planets and bodies within our solar system, shedding light on potential habitability and the origins of life.

To know more about astronomy:

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The mass of a proton is equal to the mass of?

Answers

It is about equal to the mass of the neutron. So, most people just say that they have the same mass.

*Hope that helps and enjoy Brainly :)*
The answer would be neutron. Well, they do not have the exact same mass, only a difference of about 0.98 or even less than that. So they are counted as equals. 

Which statement best describes how an ionic bond forms? a.The transfer of electrons forms strong bonds between ions.
b. The sharing of electrons forms strong bonds between ions.
c. The transfer of electrons results in attractive forces between molecules.
d.The sharing of electrons results in attractive forces between molecules.

Answers

The question says,'which statement best describes how an ionic bond forms. The correct option is A. Ionic bonds are formed as a result of complete transfer of electrovalence electrons from one atom to another. The atom that donate the electron become a positively charged ion while the atom that received the atom become a negatively charged ion.

The answer is (A) The transfer of electrons forms strong bonds between ions.

Given the balanced ionic equation representing a reaction:2A1(s) + 3Cu2+(aq) ==>2A13+(aq) + 3Cu(s)
Which half-reaction represents the reduction that occurs?(I ) Al ==> Al3+ + 3e-
(2) Al3+ + 3e- ==>Al
(3) Cu ==> Cu2+ + 2e-
(4) Cu2+ + 2e- ==>Cu

Answers

the answer should be (4)

What is the mole to mole ratio between nitrogen gas and hydrogen gas

Answers

Answer : The moles ratio between the nitrogen gas and hydrogen gas are, 1 : 3 respectively.

Explanation :

The balanced chemical reaction will be,

N_2(g)+3H_2(g)\rightarrow 2NH_3(g)

Mole ratio : It is defined as the ratio of the number of moles of the substances whose ratio is to be calculated.

In a chemical reaction, the stoichiometric coefficients represents the number of moles.

By stoichiometry of the reaction we can say that,

1 mole of nitrogen gas reacts with 3 moles of hydrogen gas to produce 2 moles of ammonia gas.

Hence, the mole ratio of between the nitrogen gas and hydrogen gas are, 1 : 3 respectively.

For instance you have a chemical reaction of N2 + 3H2 -> 2NH3. The number of moles of N2 is 1, H2 is 3 and NH3 is 2. The mole to mole ratio between nitrogen gas and hydrogen gas is 1/3 or 1 is to 3.
Other Questions
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