Which solution is the most concentrated? each choice refers to the same solute and solvent. a) 2.4 g solute in 2 ml solution b) 2.4 g solute in 5 ml solution c) 20 g solute in 50 ml solution d) 30 g solute in 150 ml solution e) 50 g solute in 175 ml solution

A

Explanation:

The units for concentration can be g/ml (grams per milliliter)

Hence we will need to calculate the concentration for each option before making a decision:

A = 2.4 / 2  = 1.2 g/ml

B = 2.4 / 5  = 0.48 g/ml

C = 20 / 50  = 0.4 g/ml

D = 30 / 150  = 0.2 g/ml

E = 50 / 175  = 0.286 g/ml

Using these values, the concentration with the highest value will give us the most concentrated solution, which in this case is option A at 1.2 g/ml.

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles

2b2t

explanation:

2b2t