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Alexxx [7]
3 years ago
10

Weather is caused by the:

Chemistry
1 answer:
marishachu [46]3 years ago
4 0
The troposphere is the area where most sheathed occurs.
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they stayed alive?

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#9 answer with explanation
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A.  6.0 mol H₂O

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6 0
3 years ago
Suppose that you add 26.7 g of an unknown molecular compound to 0.250 kg of benzene, which has a K f of 5.12 oC/m. With the adde
nadya68 [22]

Answer: The molar mass of the unknown compound is 200 g/mol

Explanation:

Depression in freezing point is given by:

\Delta T_f=i\times K_f\times m

\Delta T_f=2.74^0C = Depression in freezing point

i= vant hoff factor = 1 (for molecular compound)

K_f = freezing point constant = 5.12^0C/m

m= molality

\Delta T_f=i\times K_f\times \frac{\text{mass of solute}}{\text{molar mass of solute}\times \text{weight of solvent in kg}}

Weight of solvent (benzene)= 0.250 kg  

Molar mass of solute = M g/mol

Mass of solute  = 26.7 g

2.74^0C=1\times 5.12\times \frac{26.7g}{Mg/mol\times 0.250kg}

M=200g/mol

Thus the molar mass of the unknown compound is 200 g/mol

4 0
4 years ago
Write each mixed number as as a decimal. Use bar notation if the decimal is repeating.
aniked [119]

Number 1 is 4.875 Number 2 is 3.47 repeating

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