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3 years ago

I have coronia virus say something positive to help me through

Chemistry

2 answers:

Rashid [163]3 years ago

8 0

Answer:

you're a strong person so keep on keeping on.

Explanation:

Grace [21]3 years ago

7 0

Answer:

I hope you get better and stay positive also please stay safe

Explanation:

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What is the volume of stank of nitrogen that contains 17 moles of nitrogen at 34 C under 12,000Pa?

Otrada [13]

Answer:

3626.76dm³

Explanation:

Given parameters:

Number of moles of Nitrogen in tank = 17moles

Temperature of the gas = 34°C

Pressure on the gas = 12000Pa

Unkown:

Volume of the tank, V =?

Converting the parameters to workable units:

We take the temperature from °C to Kelvin

K = 273 + °C = 273 + 34 = 307k

Taking the pressure in Pa to atm:

101325Pa = 1atm

12000Pa = 0.118atm

Solution:

To solve this problem, we employ the use of the ideal gas equation. The ideal gas law combines three gas laws which are the Boyle's law, Charles's law and the Avogadro's law.

It is expressed as PV = nRT

The unknown is the Volume and we make it the subject of the formula

V = $\frac{nRT}{P}$

Where R is called the gas constant and it is given as 0.082atmdm³mol⁻¹K⁻¹

Therefore V = $\frac{17 x 0.082 x 307 }{0.118}$ = 3626.76dm³

3 0

3 years ago

Read 2 more answers

Mrs. Lewis gives you a piece of iron and asks you to determine the physical and chemical properties of the metal. She wants you

Andreyy89

A. Identify the properties as either a physical or chemical property. (first 3 are chemical, last is physical)

7 0

3 years ago

GOOD MORNING GUYS☕☕☕☕

Vinvika [58]

Answer:

GOOD MORNING DIDI be happy

8 0

3 years ago

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Calculate the number of O atoms in 0.150 g of CaSO4 · 2H2O.

natulia [17]

Answer:

There are 0.00523 moles of oxygen in 0.150 grams of calcium sulfate crystal.

Explanation:

Mass of calcium sulfate crystal = m = 0.150 g

Molar mass of calcium sulfate crystal = M = 172 g/mol

Moles of magnesium nitrate = n

$n=\frac{m}{M}$

$n=\frac{0.150 g}{172 g/mol}=0.0008721 mol$

1 mole of calcium sulfate crystal has 6 moles of oxygen atoms. Then 0.004446 moles calcium sulfate crystal will have :

$6\times 0.0008721 mol=0.0052326mol\approx 0.00523 mol$

There are 0.00523 moles of oxygen in 0.150 grams of calcium sulfate crystal.

8 0

4 years ago

Generally the ionization potential in a period increases, but there are some exceptions. The one which is not an exception is

Sunny_sXe [5.5K]

Answer:

Generally, the first ionisation energy increases along a period. But there are some exceptions one which is not an exception

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3 years ago