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3 years ago

Why was it so important that the electron was smaller than the atom?

Chemistry

1 answer:

kherson [118]3 years ago

7 0

Answer:

because electron is a negetively charge particle that orbits the outer part of atom and despite being small it is a strong proton.

Explanation:

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Calculate the mass of water vapour present in a room of volume 400 m3 that contains air at 27 °C on a day when the relative humi

Alex73 [517]

Answer:

Mass of water = 6251. 706g or 6.25Kg

Explanation:

Relative humidity = (actual vapor pressure/saturation vapor pressure) * 100%

Actual vapor pressure, Pw = relative humidity * saturation vapor pressure

Pw = 60% * (35.6 *0.001)atm = 0.0216atm

Note: 1mbar = 0.001atm

Using the ideal gas equation: PV=nRT; where P = Pw= 0.02136atm, V= (400

* 1000)dm^3, R= 0.082 atmdm^3/kmol, T= (27+273)K, n = number of moles

Note: 1m^3 = 1000dm^3,R is the molar gas constant.

Making n subject of the formula, n = PV/RT

n= (0.02136 * 400000)/(0.082 * 300) = 347.317 moles

Mass (g) = number of moles (n) * molar mass

molar mass of water=18g

Mass of water = 347.317 * 18 = 6251. 706g or 6.25Kg

6 0

3 years ago

I need help with number 5

pochemuha

The answer is package c because each cd would cost $1.87, which is the lowest price

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3 years ago

Calculate the molar mass for each of the following:

Mila [183]

Answer: a . 152g/mol b. 102g/mol c. 183g/mol

Explanation:

By stating the atomic masses of each element in the questions, we have;

Fe= 56, S= 32, O= 16, Al = 27, C = 12, H =1 , N = 14, therefore

(a). FeSO4 = 56 + 32 + (16 x 4) = 152g/mol

(b). Al2O3 = (27 x 2) + (16 x 3) = 102g/mol

(c). C7H5NO3S ( Saccharin, an artificial Sweetner) =

(12 x 7) + (1 x 5) + 14 + (16 x 3) + 32 = 183g/mol

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4 years ago

In a reaction involving the iodination of acetone, the following volumes were used to make up the reaction mixture: 5 mL 4.0M ac

adell [148]

Explanation:

Below is an attachment containing the solution.

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4 years ago

What are the type of bones structure in the skeletal system

Nikolay [14]

Components of the Skeletal System. The skeletal system is composed of four main fibrous and mineralized connective tissues : bones, ligaments, tendons, and joints. Bone: A rigid form of connective tissue that is part of the skeletal system of vertebrates and is composed principally of calcium.

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4 years ago

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