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Anna [14]
2 years ago
15

This is methane, Methane is gas that is found in small quantities in Earth's atmosphere. Methane is the simplest hydrocarbon,

Chemistry
1 answer:
const2013 [10]2 years ago
5 0

Answer:

CH4

Explanation:

I looked it up and took the test

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A 1.450 g sample of an unknown organic compound , X, is dissolved in 15.0 g of toluene
muminat

Answer:

Molecular weight of the compound = 372.13 g/mol

Explanation:

Depression in freezing point is related with molality of the solution as:

\Delta T_f = K_f \times m

Where,

\Delta T_f = Depression in freezing point

K_f = Molal depression constant

m = Molality

\Delta T_f = K_f \times m

1.33 = 5.12 \times m

m = 0.26

Molality = \frac{Moles\ of\ solute}{Mass\ of\ solvent\ in\ kg}

Mass of solvent (toluene) = 15.0 g = 0.015 kg

0.26 = \frac{Mole\ of\ compound}{0.015}

Moles of compound = 0.015 × 0.26 = 0.00389 mol

Mol = \frac{Mass\ in\ g}{Molecular\ weight}

Mass of the compound = 1.450 g

Molecular\ weight = \frac{Mass\ in\ g}{Moles}

Molecular weight = \frac{1.450}{0.00389} = 372.13\ g/mol

4 0
3 years ago
Balance the Chemical Equations<br><br> MgF2 + Li2CO3---&gt; MgCO3 + LiF <br><br> Please Help
kirill115 [55]

Answer:

MgF2 + Li2CO3 ---> MgCO3 + 2LiF

Explanation:

4 0
3 years ago
Plz help :’(
BartSMP [9]

Explanation:

2-metylbutene should be the profuct

6 0
3 years ago
What advice did Planck ignore when he was a student,and how did it impact future discoveries
yan [13]

Answer:

A PROFESSOR WARNED HIM NOT TO GO INTO PHYSICS. Not long after the 16-year-old Planck got to the University of Munich in 1874, physics professor Philipp von Jolly tried to dissuade the young student from going into theoretical physics. Jolly argued that other scientists had basically figured out all there was to know.

Explanation:

5 0
3 years ago
How does vapor pressure affect intermolecular forces.
Grace [21]

Answer:

it is directly related to the intermolecular forces present between its molecules

3 0
2 years ago
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