If a dozen apples has a mass of 2.0 kg and 0.20 bushel is 1 dozen apples, How many bushels of apples are in 1.0 Kg of apples

Why are weight and mass used synonymously on Earth?

RUDIKE [14]

Actually mass and weight are two different things but most people did not understand the difference between them. And they are used synonymously on the earth. Mass is the measure of the amount of matter and weight is the measure of how the force of gravity acts on the mass that is Weight = mass x force of gravity. And they are also directly proportional to each other that is also the reason both terms are used synonymously.

5 0

2 years ago

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Making the simplistic assumption that the dissolved NaCl(s) does not affect the volume of the solvent water, determine the const

shtirl [24]

Answer:

m = 1,000/58.5
b = - 1,000 / 58.5

1) Variables

molarity: M
density of the solution: d
moles of NaCl: n₁
mass of NaCl: m₁
molar mass of NaCl: MM₁
total volume in liters: Vt
Volume of water in mililiters: V₂
mass of water: m₂

2) Density of the solution: mass in grams / volume in mililiters

d = [m₁ + m₂] / (1000Vt)

3) Mass of NaCl: m₁

Number of moles = mass in grams / molar mass

⇒ mass in grams = number of moles × molar mass

m₁ = n₁ × MM₁

4) Number of moles of NaCl: n₁

Molarity = number of moles / Volume of solution in liters

M = n₁ / Vt

⇒ n₁ = M × Vt

5) Substitue in the equation of m₁:

m₁ = M × Vt × MM₁

6) Substitute in the equation of density:

d = [M × Vt × MM₁ + m₂] / (1000Vt)

7) Simplify and solve for M

d = M × Vt × MM₁ / (1000Vt) + m₂/ (1000Vt)

d = M × MM₁ / (1000) + m₂/ (1000Vt)

Making the simplistic assumption that the dissolved NaCl(s) does not affect the volume of the solvent water means 1000Vt = V₂

d = M × MM₁ / (1000) + m₂/ V₂

m₂/ V₂ is the density of water: 1.00 g/mL

d = M × MM₁ / (1000) + 1.00 g/mL

M × MM₁ / (1000) = d - 1.00 g/mL

M = [1,000/MM₁] d - 1,000/ MM₁

8) Substituting MM₁ = 58.5 g/mol

M = [1,000/58.5] d - [1,000/ 58.5]

Comparing with the equation Molarity = m×density + b, you obtain:

m = 1,000/58.5
b = - 1,000/58.5

7 0

2 years ago

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What happens during a mosquito 6 chromosomes to form eggs.

lbvjy [14]

Since the diploid number of mosquitoes is six, that means that there are 6 chromosomes in every somatic (non-reproductive) cell,including the cells that make up the stomach.The six chromosomes represent two three-chromosome sets the mosquito received one set of three chromosomes from the egg cell of the mother and a similar set of three chromosomes from the sperm cell of the father.

7 0

2 years ago

Write the lewis structure for ch2clcoo−. assign a formal charge for any atom with a non-zero formal charge.

Murljashka [212]

The Lewis structure of Chloroacetate (H₂CClCO₂) is given below. In structure it is shown that carbon has a double bond with one oxygen atom and two single bonds with CH₂Cl and O⁻.

Formal Charge;
Formal charge is caculated as,

Formal charge = # of valence e⁻ - [# of lone pair of e⁻ + 1/2 # of bonded e⁻]

Formal charge on Oxygen (Highlighted Red);

Formal charge = 6 - [ 6 + 2/2]

Formal charge = 6 - [6 + 1]

Formal charge = 6 - [7]

Formal charge = -1

8 0

2 years ago

Given six molecules, identify the molecules with polar bonds and the molecules that are polar.CCl4, CH3Cl, H20, CO2, O2

Nikitich [7]

Answer:

Non-polar compounds: $CCl_4$ , $O_2$ , $CO_2$

Polar compounds: $CH_3Cl$ , $H_2O$

Explanation:

For this question, we must start with the Lewis structure for each molecule and then we can do their respective analysis:

-) $CCl_4$

In this case, we have 4 equal atoms attached to the central atom. Therefore, we have the same magnitude of electronegativity. Chlorine atoms have different and opposite directions. Therefore due to the orientation the dipole moments cancel and the net dipole moment will be zero and the molecule will be non-polar.

-) $O_2$

In this case, we have a linear structure in which the magnitude of the dipole moment is the same, but the direction is the opposite. Therefore the dipole moments are canceled and the molecule will be non-polar.

-) $CO_2$

In this case, we also have a linear structure in which the magnitude of the dipole moment is the same, but the direction is the opposite. Therefore the dipole moments are canceled and the molecule will be non-polar.

-) $CH_3Cl$

For this molecule, we have a different atom. The hydrogen atom, therefore the magnitude of one of the atoms attached to the central atom is different and the magnitude of the net dipole moment will be different from zero and the molecule will be polar.

-) $H_2O$

For this molecule, due to the structure of the molecule, the dipole moments of oxygens will not have a totally opposite configuration. Therefore, the net dipole moment will be different from zero and the molecule will be polar.

See figure 1 to further explanations

I hope it helps!

5 0

2 years ago