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xz_007 [3.2K]
3 years ago
14

A student fails to clean the pipet first. after delivering the vinegar sample, the student notices a drop of vinegar clinging to

the inner surface of the pipet. How would this affect the concentration of Ch3COOH? Will concentration be higher or lower?
Chemistry
1 answer:
VladimirAG [237]3 years ago
4 0
This should not matter because the pipet has gradations and usually more of the sample is taken up in the pipette than what is delivered into the flask the student should always rinse the container being used because they are contaminating the sample if they do not clean it out
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A slice of pizza has 500 kcal. If we could burn the pizza and use all the heat to warm a 50-L container of cold water, what woul
gayaneshka [121]

Answer:

10°C  

Explanation:

Heat gain by water = Heat lost by the slice of pizza

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m_{water}\times C_{water}\times \Delta T=Q

<u>For water:  </u>

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Density of water= 1 kg/L  

So, mass of the water:  

Mass\ of\ water=Density \times {Volume\ of\ water}  

Mass\ of\ water=1 kg/L \times {50.0\ L}  

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ΔT = ?

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3 years ago
An electron can be added to halogen atom to force a halide ion with
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brainly.com/question/18276987

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