Answer:
Always wear safety goggles when performing an experiment.
Use caution when constructing the track.
Ensure that the track is clear before releasing cars.
Report all accidents to the teacher.
Explanation:
Drums made of carbon steel have proven to be a reliable and powerful container for storage and transportation. They are available in open and tight head configurations, sizes ranging from 5-110 gallons, and the workhorse 55 Gallon Drum.
<h3>What is about
55 Gallon Drum?</h3>
- Drums made of carbon steel have proven to be a reliable and powerful container for storage and transportation. They are available in open and tight head configurations, sizes ranging from 5-110 gallons, and the workhorse 55 Gallon Drum.
- They are suitable for packing a range of goods, including hazardous compounds. All carbon steel drums are made of carbon steel that meets ASTM standards.
- The 42 carbon steel barrels that conform to industry standards are given below. They are extremely durable, thicker, heavier, and stronger than what industry standards call for. Any of our carbon steel drum designs are completely customizable by our in-house engineering department. To meet your specific needs and size requirements, ask about carbon steel drums that are specially built.
To learn more about 55 Gallon Drum refer to:
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First lets calculate the moles of aluminum (molar mass is 27 gram/mol):
n = m/M = 14.9 / 27 = 0.551 mole of Al
According to the reaction between sulfuric acid and aluminum:
From 2 moles of aluminum ==> we get 3 moles of Hydrogen gas
so, let's do cross multiplication
0.551 ==> 0.551 * 3/2 = 0.83 mole of H2
So, from this reaction we got 0.83 mole of H2 gas
knowing that the molar mass of H2 is 2 gram/mol, the mass of the gas is.
m = n * M = 0.83 * 2 = 1.66 gram of H2
Answer:
<h3>The answer is 0.25 moles</h3>
Explanation:
To find the number of moles in a substance given it's number of entities we use the formula
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question
N = 1.505 × 10²³ Na atoms
We have
We have the final answer as
<h3>0.25 moles</h3>
Hope this helps you