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3 years ago

Do I need to include the way I did the chemical experiment on my chemistry lab report for my chemistry BSC?

1 answer:

7 0

Yes, you do need to include the way you did the chemical experiment on your chemistry lab report for your Chemistry BDC.

You always need to include everything so that if their was something wrong that you can go back and do it over again to figure out where you messed up at and so the teacher can see how you got the answer so that they don't think you cheated.

Good Luck : )

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In your own words, what do you think an atom is?

Lelu [443]

Answer:

An atom is a particle of matter that uniquely defines achemical element. An atom consists of a central nucleus that is usually surrounded by one or more electrons. Each electron is negatively charged. The nucleus is positively charged, and contains one or more relatively heavy particles known as protons and neutrons.

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2 years ago

Calculate the standard entropy of vaporization of ethanol at its boiling point, 352 K. The standard molar enthalpy of vaporizati

Korvikt [17]

Answer : The correct option is, (b) +115 J/mol.K

Explanation :

Formula used :

$\Delta S=\frac{\Delta H_{vap}}{T_b}$

where,

$\Delta S$ = change in entropy

$\Delta H_{vap}$ = change in enthalpy of vaporization = 40.5 kJ/mol

$T_b$ = boiling point temperature = 352 K

Now put all the given values in the above formula, we get:

$\Delta S=\frac{\Delta H_{vap}}{T_b}$

$\Delta S=\frac{40.5kJ/mol}{352K}$

$\Delta S=115J/mol.K$

Therefore, the standard entropy of vaporization of ethanol at its boiling point is +115 J/mol.K

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3 years ago

What are two ways in which you can increase the potential energy of a marble on ramp

zlopas [31]

Answer:

You can make the ramp really steep and hold the marble at the top of it

Explanation:

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2 years ago

Element

Katyanochek1 [597]

Answer:

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3 years ago

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tamaranim1 [39]

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3 years ago