2 If you are to dilute the above solution, to a molarity of 0.75 M, what should be the volume? Show Your Work​

.25 meters per second

25/100

.25

100/100

1

Answer: n= 1.02 moles

Explanation: relative atomic mass of Fe is 55.85.

Amount of substance n= m/M = 56.7 g /55.85 g/mol

Answer:

Usually, you should lay down your educational background by listing the most recent or advanced degree first, working in reverse chronological order. But there are exceptions. Say you earned a degree in geography, but are now working in the field of online marketing. If you more recently completed coursework specific to social media or digital marketing, list that first to grab the reviewer’s attention.

Explanation:

Answer:

Start with the most recent  or advanced degree first, working in reverse chronological order.

Explanation:

Answer:

Complete ionic: 2Cr(3+) + 6(NO3)- + 3Ba = 2Cr + 3Ba(2+) + 6(NO3)-

Net ionic; 2Cr(3+) + 3Ba = 2Cr + 3Ba(2+)

Explanation:

We are given;

Cr(NO3)3 (aq) + Ba (s)

Let's first find the product of this reaction before getting the complete and net ionic equations.

2Cr(NO3)3 + 3Ba = 2Cr + 3Ba(NO3)2

The complete ionic equation will be;

2Cr(3+) + 6(NO3)- + 3Ba = 2Cr + 3Ba(2+) + 6(NO3)-

The net ionic equation is gotten by eliminating the spectator ions from both left and right hand sides of the equation.

Thus, net ionic equation is;

2Cr(3+) + 3Ba = 2Cr + 3Ba(2+)

Answer:

Amount of Alcohol volume present in solution = 44.99 ml

Explanation:

Given:

Total volume of solution = 409 ml

Amount of Alcohol percentage present in solution = 11%  

Find:

Amount of Alcohol volume present in solution

Computation:

Amount of Alcohol volume present in solution = Total volume of solution x Amount of Alcohol percentage present in solution

Amount of Alcohol volume present in solution = 409 x 11%

Amount of Alcohol volume present in solution = 409 x 0.11

Amount of Alcohol volume present in solution = 44.99 ml

Answer:

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

We have

[tex]n = \frac{1.00 \times {10}^{23} }{6.02 \times {10}^{23} } = \frac{1}{6.02} \\ = 0.166112[/tex]

We have the final answer as

Hope this helps you

Answer:

 They both are made up of atoms and having bonds linking their atoms together.molecules and compounds also share the qualities of being both pure and homogeneous substances.

Explanation:

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Answer:

water

Explanation:

H2O

Answer:The answer is water

Explanation: Hydrogen is an element made of an aggregate of hydrogen atoms while oxygen is an element made of oxygen atoms. However, water is a compound made of water molecules.

Answer:

0.131mol

Explanation:

Firstly, we need to find the number of moles of chlorine gas (Cl2) by using the formula:

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas constant (0.0821 Latm/molK)

T = temperature (K)

Using PV = nRT

n of Chlorine = PV/RT

Based on the information provided in this question, V = 2.12 L, P = 2.27atm, T = 24°C = 24 + 273 = 297K

n = 2.27 × 2.12/ 0.0821 × 297

n = 4.8124/24.3837

n = 0.197

number of moles of Chlorine gas = 0.197mol

The balanced chemical equation provided in this question is as follows;

2 Al(s) + 3Cl2 (g) → 2AlCl3 (s)

3 moles of Cl2 produce 2 moles of AlCl3

0.197moles of Cl2 will produce;

0.197 × 2/3

= 0.394/3

= 0.131mol of AlCl3.

Answer:

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Answer: a. 75K

Explanation:

https://socratic.org/answers/200353

Explanation:

Answer:

increase

Explanation:

Conduction involves the transfer of electric charge or thermal energy due to the movement of particles. When the conduction relates to electric charge, it is known as electrical conduction while when it relates to thermal energy, it is known as heat conduction. Conductors include metal, steel, aluminum, copper, frying pan, pot, spoon etc.

In the process of heat conduction, thermal energy is usually transferred from fast moving particles to slow moving particles during the collision of these particles. Also, thermal energy is typically transferred between objects that has different degrees of temperature and materials (particles) that are directly in contact with each other but differ in their ability to accept or give up electrons.

Hence, thermal energy added to a substance that is not changing state causes the substance’s temperature to increase because it would absorb energy in the form of heat.

Explanation:

Each element has its own unique properties. Each contains a different number of protons and neutrons, giving it its own atomic number and mass number. The atomic number of an element is equal to the number of protons that element contains.

Answer:  

1.  DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses.

2.  both

Explanation:  Since errors can occur when DNA replicates itself, mutations can occur in both asexually and sexually reproducing organisms.

Answer:first one is carbon

Explanation:

Other than that I don’t know

Answer:

Cold

Explanation:

Because 0°C And below or 32°F Refers To Cold Weather

Answer:

The pressure of the gas is 30.3072 atm.

Explanation:

An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law, an equation that relates the three variables if the amount of substance, number of moles n, remains constant and where R is the molar constant of the gases:

P * V = n * R * T

In this case:

Replacing:

P* 2.5 L= 3 moles* 0.082 [tex]\frac{atm*L}{mol*K}[/tex] *308 K

Solving:

[tex]P=\frac{ 3 moles* 0.082 \frac{atm*L}{mol*K} *308 K}{2.5 L}[/tex]

P= 30.3072 atm

The pressure of the gas is 30.3072 atm.

Answer:

Atom Labeling

Explanation:

Y- neutron

Z-protron

X - electron

W- nucleus

Answer: the amount of force on the spring scale

Explanation:

Answer:

nacl cacl kcl mgcl k2so4 na2co3 na2so4 kno3 nahco3 naco3

Explanation:

Answer:

d. 200.

Explanation:

The reaction is:

2KMnO4 + 16HCl ----> 2KCl + 2MnCl2 + 8H2O + 5Cl2

So 2 moles of KCL are produced form  16 moles of HCL

So 25 moles KCL are made from   25 * (16/2) HCl.

= 25 * 8

= 200 moles. HCl.

Answer:

Option A

Explanation:

In Dipole -induced dipole forces/interactions a polar and a non polar molecule group together to form a bond.  

The higher is the electronegativity, the higher is the Dipole-Induce dipole.

As electronegativity defines the ability of an atom to attract a pair of electron in any chemical bond.  

The smaller the atom, the higher is the electronegativity and hence the higher is the Dipole -induced dipole forces/interactions

Option A

Answer:

This molecule is made up of 3 equally spaced sp2 hybrid orbitals arranged at approximately 120o angles. The shape of the orbitals is planar triangular. One orbital contains a lone pair of electrons.

A neutral solution is one that is neither acidic nor basic. The hydrogen ion concentration equals the hydroxide ion concentration, and both equal 1 X 10-7 M. In a neutral solution, then, pH = pOH = 7.

Explanation:

The substance(s) to the left of the arrow in a chemical equation are called reactants. A reactant is a substance that is present at the start of a chemical reaction. The substance(s) to the right of the arrow are called products . A product is a substance that is present at the end of a chemical reaction

Answer:

a

Explanation:

The solution that has the highest concentration given the data is solution A ( Option D)

This is defined as the mole of solute per unit litre of solution. Mathematically, it can be expressed as:

Molarity = mole / Volume

Mole = mass / molar mass

Mole of NaCl = 5 / 58.5

Mole of NaCl = 0.085 mole

Molarity = mole / Volume

Molarity of solution A = 0.085 / 0.05

Molarity of solution A = 1.7 M

Molarity = mole / Volume

Molarity of solution B = 0.085 / 0.075

Molarity of solution B = 1.13 M

Molarity = mole / Volume

Molarity of solution C = 0.085 / 0.1

Molarity of solution C = 0.85 M

Molarity = mole / Volume

Molarity of solution D = 0.085 / 0.125

Molarity of solution D = 0.68 M

SUMMARY

Thus, solution A has the highest concentration of the salt.

Learn more about molarity:

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