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inysia [295]
2 years ago
14

What do the letters “P.P.E” stand for in chemical

Chemistry
1 answer:
stepan [7]2 years ago
6 0

Answer:

Personal Protective Equipment

Explanation:

Some examples of PPE are safety glasses, lab coats, steel-toed shoes, etc.

The purpose of PPE is to keep the user from getting injured when using dangerous equipment or chemicals.

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What is the pH of a 4.5 x 10 M HI solution?
hoa [83]

Answer:

ik ppl sy no links but https://courses.lumenlearning.com/cheminter/chapter/the-ph-scale/

Explanation: it should help you

8 0
3 years ago
Which of the following statements is FALSE?
Jobisdone [24]

Answer:

Option C is false statement. The half life of a second order reaction is not dependent on concentration.

Explanation:

Half life of a reaction is defined as the amount of time which is required for a reactant concentration reduced by half comparison to its initial concentration.

Half life of a second order reaction is depend on the initial concentration of a reaction, in contrast to 1st order reaction.

7 0
3 years ago
When considering different hypotheses, usually the ____ one which can account for the ____ is the correct one. |
muminat
I think the answer is theory
4 0
3 years ago
Read 2 more answers
Calculate the change in ph when 3.00 ml of 0.100 m hcl(aq) is added to 100.0 ml of a buffer solution that is 0.100 m in nh3(aq)
nikklg [1K]

The change in pH is calculated by:

pOH = Protein kinase B + log [NH4+]/ [NH3] 

Protein kinase B of ammonia = 4.74 

initial potential of oxygen hydroxide= 4.74 + log 0.100/0.100 = 4.74 
pH = 14 - 4.74=9.26 

moles NH4+ = moles NH3 = 0.100 L x 0.100 M = 0.0100 
moles H+ added = 3.00 x 10^-3 L x 0.100 M=0.000300 

NH3 + H+ = NH4+ 
moles NH3 = 0.0100 - 0.000300=0.00970 
moles NH4+ = 0.0100 + 0.000300=0.0103 

pOH = 4.74 + log 0.0103/ 0.00970= 4.77 
oH = 14 - 4.77 = 9.23 

the change is  = 9.26 - 9.23 =0.03 

7 0
3 years ago
HELPPP
kolbaska11 [484]
B is the answer I think hope this helps
6 0
3 years ago
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