Show your work with good use of units, rounding, and significant figures. [Hint: it is good practice to show the value of your answer before you round off to the final answer with the correct significant figures!] (7 points) A solution was prepared by dissolving 18.00 g of glucose in 150.0 g of water. The molar mass of glucose is 180.15 g/mol. The boiling point elevation constant for water is 0.512 °C•kg/mol.

What is the molality of the solution?
What is the resulting solution's new boiling point?

Boiling point of a solution is found to be 100.34  

o

C. Boiling point of pure

water is 100  

o

C.      

The elevation in the boiling point ΔT  

b

=100.34−100=0.34  

o

C.

12 gm glucose (molecular weight 180 g/mol) is dissolved in 100 gm water.

The number of moles of  glucose =  

180g/mol

12g

=0.0667mol

Mass of water =100g×  

1000g

1kg

=0.100kg

Molality of solution m=  

0.100kg

0.0667mol

=0.667mol/kg

The elevation in the boiling point ΔT  

b

=K  

b

×m

0.34  

o

C=K  

b

×0.667mol/kg

K  

b

=0.51  

o

Ckg/mol

The molal elevation constant for water is 0.51  

o

Ckg/mol.

Explanation:

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates