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lbvjy [14]
2 years ago
11

Congratulations! You’ve recently received a promotion from work. Your new job is to fill rooms with certain gases. A room is fou

nd to measure 9.00 feet wide by 12.0 feet long and 10.0 feet high. Your first assignment is to fill this room with a gas that has a density of 0.88543 kg/m3. Unfortunately your boss is asking you to make the gas (if you know what I mean). How many grams of this gas are required to fill the room? (1m3 = 35.3147 ft3) (Round to the appropriate sig fig)
Chemistry
1 answer:
guajiro [1.7K]2 years ago
8 0

The amount of gas required to fill the room is 27076.4 g

To calculate the grams of the gas that will fill the room, we make use of the formula below

⇒ Formula:

  • D = m/V....................... Equation 1

⇒ Where:

  • D = Density of the gas
  • m = mass of the gas
  • V = Volume of the room

⇒ make m the subject of the equation

  • m = DV................... Equation 2

From the question,

⇒ Given:

  • D = 0.88543 kg/m³
  • V = Volume of a cubiod = Length×Width×Height = 9×12×10 = 1080 ft³

⇒ Converting the volume from ft³ to m³

  • V = 1080/35.3147
  • V = 30.58 m³

Substitute these values into equation 2

  • m = 0.88543(30.58)
  • m = 27.0764 kg
  • m ≈ 27076.4 g

Hence, The amount of gas required to fill the room is 27076.4 g

Learn more about density here: brainly.com/question/11107994

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What is economics in costing​
Dahasolnce [82]

Answer:

The economics in costing​ is explained below in complete details.

Explanation:

The economic cost is the blend and mixture of wastes of any assets that have a worth connected to them by any one person. The economic cost is practiced largely by economists as a method to examine the prudence of one sequence of performance with that of another. The economic cost varies from accounting cost because it incorporates opportunity cost.

8 0
3 years ago
Select the ion.<br> -NO 2<br> -H2SO4<br> -AI +3
horrorfan [7]

Answer:

Al+3

Explanation:

Ion is a positively or negatively charged species. A neutral species does not carry any charge.

here only Al has +3 charge. So it is an ion.

6 0
4 years ago
During an experiment, 321.1 grams of strontium phosphite are measured into a beaker. How many moles of strontium phosphite are i
Allushta [10]

321.1 g of strontium phosphite will contain 0.76 moles of strontium phosphite in the beaker.

<u>Explanation:</u>

It is known that 1 mole of any substance is equal to the molar mass of that substance. So for the case of strontium phosphite, the molar mass is found to be 420.8 g/mol.

This means 1 mole of Strontium phosphite will contain 420.8 g of strontium phosphite.

Then 1 g of strontium phosphite will have \frac{1}{420.8} moles of strontium phosphite.

So, 321.1 g of strontium phosphite will contain \frac{321.1}{420.8}=0.76 moles

Thus, 321.1 g of strontium phosphite will contain 0.76 moles of strontium phosphite in the beaker.

5 0
3 years ago
Mixing solutions of sodium hydroxide and rubidium nitrate will cause rubidium hydroxide to precipitate. You have a 1.50 mol/L so
Crazy boy [7]

Answer:

97.6 mL of Sodium Hydroxide and 732 mL of Rubidium Nitrate are needed to make 15 g of Rubidium hydroxide.

Explanation:

The chemical reaction described in the question can be given as

NaOH + RbNO₃ → RbOH + NaNO₃

We want to find the amount of each reactant that reacted to give 15 g of RbOH

Amount of RbOH produced from the reaction = 15 g,

We first convert to number of moles, to be able to obtain the number of moles of each reactant from the stoichiometric balance of the reaction.

Number of moles = (Mass)/(Molar Mass)

Molar Mass of RbOH = 102.475 g/mol

Number of moles of RbOH produced from the reaction = (15/102.475) = 0.1464 moles.

Note that from the stoichiometric balance of the reaction,

1 mole of RbOH was produced from 1 mole of RbNO₃

And

1 mole of RbOH was produced from 1 mole of NaOH.

So,

0.1464 mole of RbOH will be produced from 0.1464 mole of RbNO₃

And

0.1464 mole of RbOH will be produced from 0.1464 mole of NaOH

Note that,

Number of moles = (Concentration in mol/L) × (Volume in L)

For RbNO₃,

Number of moles = 0.1464 mole

Concentration in mol/L = 0.200 mol/L

Volume in L = ?

0.1464 = 0.2 × (Volume in L)

Volume in L = (0.1464/0.20) = 0.732 L = 732 mL

For NaOH,

Number of moles = 0.1464 mole

Concentration in mol/L = 1.50 mol/L

Volume in L = ?

0.1464 = 1.50 × (Volume in L)

Volume in L = (0.1464/1.50) = 0.0976 L = 97.6 mL

Hope this Helps!!!

4 0
3 years ago
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uysha [10]
If the IMA of a machine is 4 and the effort force is 6.0 newtons, then the force exerted on the resistance by the machine is D-24 N
6 0
3 years ago
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