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Fudgin [204]
3 years ago
5

Which will ensure laboratory safety during the experiment? Check all that apply.

Chemistry
2 answers:
dangina [55]3 years ago
7 0

Explanation:

While performing any experiment it is important to take proper safety measures so that any kind of accident will be avoided.

For example, using tongs to handle hot beaker is a safety measure as tongs protect our hands from burning if we bare handedly try to touch the beaker.

Thus, we can conclude that out of the given options, following are the safety measures.

  • Using beaker tongs to handle the hot beaker.
  • Turning off the hot plate after use.
gtnhenbr [62]3 years ago
3 0

The following will ensure laboratory safety during an experiment;

1) Using tongs to handle a hot beaker: This prevents direct contact with the hot beaker and avoids burns

5) Turning off the hot plate after use: If the hot plate is left on, it could injure anyone who might touch it accidentally

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How many grams are in 3.8 moles of Li?
Sunny_sXe [5.5K]
In 3.8 moles of li, there are about <span>0.144071459 grams. I assume that you are talking about lithium.</span>
7 0
3 years ago
a flask was filled with SO2 at a partial pressure of 0.409 atm and O2 at a partial pressure of 0.601 atm. The following gas-phas
jarptica [38.1K]

Answer:

The equilibrium partial pressure of O2 is 0.545 atm

Explanation:

Step 1: Data given

Partial pressure of SO2 = 0.409 atm

Partial pressure of O2 = 0.601 atm

At equilibrium, the partial pressure of SO2 was 0.297 atm.

Step 2: The balanced equation

2SO2 + O2 ⇆ 2SO3

Step 3: The initial pressure

pSO2 = 0.409 atm

pO2 = 0.601 atm

pSO3 = 0 atm

Step 4: Calculate the pressure at the equilibrium

pSO2 = 0.409 - 2X atm

pO2 = 0.601 - X atm

pSO3 = 2X

pSO2 = 0.409 - 2X atm = 0.297

 X = 0.056 atm

pO2 = 0.601 - 0.056 = 0.545 atm

pSO3 = 2*0.056 = 0.112 atm

Step 5: Calculate Kp

Kp = (pSO3)²/((pO2)*(pSO2)²)

Kp = (0.112²) / (0.545 * 0.297²)

Kp = 0.261

The equilibrium partial pressure of O2 is 0.545 atm

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3 years ago
I need help with stoichometrey
alukav5142 [94]
I can help you! What is your question?
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Answer:

I think it would be the last answer

Explanation:

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