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Afina-wow [57]
3 years ago
8

Hydrogen gas explosive within range of 4%-75% v/v. Assuming that each student in your class produces 6 L of H2 and that the lab

is not ventilated, is danger of an explosion? Show your calculations to back up your answer.
Chemistry
1 answer:
SpyIntel [72]3 years ago
3 0
To determine whether the amount of H2 in the lab is dangerous, we first need to know how much hydrogen gas is present in the room in units of percent by volume. For this particular problem, we cannot exactly determine since we do not know the total volume of the room. Hope this answers the question.
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3) A solution contains 61.3 moles of KC103 in 0.25 L of solution. What is the
marissa [1.9K]

Answer:

The molarity of the solution is 245, 2M.

Explanation:

We calculate the molarity, which is a concentration measure that indicates the moles of solute (in this case KCl03) in 1000ml of solution (1 liter):

0,25 L  solution----- 61,3 moles of KCl03

1 L solution----x= (1 L solution x 61,3 moles of KCl03)/0,25 L solution

x=245, 2 moles of KCl03 --> <em>The molarity of the solution is 245, 2M</em>

<em></em>

6 0
2 years ago
What`s the lewis structure for CH3OO?
DIA [1.3K]
I found this off youtube, I hope it helps.

6 0
3 years ago
) The reaction below is exothermic: 2SO2 (g) O2 (g) 2SO3 (g) Le Cha^ telier's Principle predicts that __________ will result in
Lynna [10]

Answer:

A) increasing the pressure

Explanation:

Given the exothermic reaction:

2SO₂(g) + O₂(g) ↔  2SO₃(g)

the question asks what will make the number of moles of SO₃(g) to increase.

When an equilibrium is disturbed, the system will shift in order to counteract the change (see <em>Le Chatelier's Principle</em>) So <em>when the pressure is increased in a reaction involving gases, the equilibrium will shift trying to decrease the number of moles </em>(because pressure is produced by molecules hitting the container), that is in this case it will shift towards the right side, towards the production of SO₃, thus increasing the number of moles of SO₃.

The number of moles in the right side is 2 and the number of moles in the left side is 3.

3 0
3 years ago
How do covalent bonds form?
astra-53 [7]

Answer:

Hiya there!

Explanation:

A covalent bond forms when the difference between the electronegativities of two atoms is too small for an electron transfer to occur to form ions. Shared electrons located in the space between the two nuclei are called bonding electrons. The bonded pair is the “glue” that holds the atoms together in molecular units.

<em><u>Hope this helped!</u></em> ^w^

Credit sourced from "sciencedirect.com"

5 0
3 years ago
Read 2 more answers
What type of wave needs molecules in order to transfer the energy.
ratelena [41]
The answer is heat waves
6 0
3 years ago
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