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Alinara [238K]
3 years ago
7

How many moles of mgci2 are there in 332 g of the compound

Chemistry
1 answer:
Agata [3.3K]3 years ago
3 0
Find molar mass of MgCl2 so M=<span>95.211 g/mol
N=m/M 
N=332/95.2
N=3.487
dont forget to round your sig figs </span>
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A.liver e.mouth i.stomach
viktelen [127]

Answer:

8. c

9. e

10. k

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12. d

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14. h

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16. a

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18. b

19. i

Explanation:

8 0
3 years ago
A student wants to know why sandhill crane‘s fly south for the winter. The student uses a map of North America to make a model o
Ratling [72]

Answer:

a and c

Explanation:

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7 0
3 years ago
Read 2 more answers
If fluorine gas (F₂) occupies a volume of 45.5 L at a pressure of 850
pshichka [43]

Taking into account about the ideal gas law, the mass of fluorine gas is 63.2244 grams.

<h3>What is ideal gas law</h3>

An ideal gas is a theoretical gas that is considered to be composed of randomly moving point particles that do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:

P×V = n×R×T

where:

  • P is the gas pressure.
  • V is the volume that occupies.
  • T is its temperature. The universal constant of ideal gases R has the same value for all gaseous substances.
  • R is the ideal gas constant.
  • n is the number of moles of the gas.

<h3>Definition of molar mass</h3>

The molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.

<h3>Mass of fluorine gas</h3>

In this case, you know:

  • P= 850 mmHg= 1.11842 atm (being 1 mmHg= 0.00131579 atm)
  • V= 45.5 L
  • T =100 °C= 373 K (being 0°C= 273 K)
  • R= 0.082 \frac{atm L}{mol K}
  • n= ?

Replacing in the ideal gas law:

1.11842 atm ×45.5 L = n×0.082 \frac{atm L}{mol K}× 373 K

Solving:

n= (1.11842 atm ×45.5 L)÷ (0.082 \frac{atm L}{mol K}× 373 K)

<u><em>n= 1.6638 moles</em></u>

The molar mass of F₂ is 38 g/mole. Then you can apply the folowing rule of three: If by definition of molar mass 1 mole of the compound contains 38 grams, 1.6638 moles of the compound contains how much mass?

mass= \frac{1.6638 molesx38 grams}{1 mole}

<u><em>mass= 63.2244 grams</em></u>

Finally, the mass of fluorine gas is 63.2244 grams.

Learn more about

the ideal gas law:

brainly.com/question/4147359

molar mass:

brainly.com/question/5216907

brainly.com/question/11209783

brainly.com/question/7132033

brainly.com/question/17249726

#SPJ1

7 0
2 years ago
An object with a mass of 15kg is accelerating at 10m/s2. What is the force carried by this object
sladkih [1.3K]

Answer: 150N

Explanation:

The formula to calculate the force will be the mass multiplied by the acceleration. In this case, mass = 15kg and acceleration = 10m/s². Therefore, force will be:

= Mass × Acceleration

= 15 × 10

= 150N

The force is 150Newton

8 0
3 years ago
What is the theoretical yield of sodium chloride for the reaction of 55.0 g na with 67.2 g cl2?
lozanna [386]
The chemical reaction would be written as:

2Na + Cl2 = 2NaCl

Since we are given the amounts of the reactants available for reaction, we have to determine the limiting reactant. And use this amount to calculate for the theoretical yield.

55 g Na ( 1 mol / 22.99 g ) = 2.39 mol Na
67.2 f Cl2 ( 1 mol / 70.9 g ) = 0.95 mol Cl2

Therefore, the limiting reactant would be Cl2 since it is the one consumed completely.

0.95 Cl2 ( 1 mol NaCl / 1 mol Cl2) = 0.95 NaCl produced from the reaction
7 0
3 years ago
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