Why use significant digits you ask? Significant digits or significant figures are use as to not be too precise of an actual calculated measure.
Long decimal numbers location like 3.45 * sqrt of 3 gives 5.975575286112627.
That number is too precise.
Rounding it to 5.98 shows an exact closeness to the precision of the measure.
I have included the work and the process which is easiest for me to balance chemical equations. I hope it helps!
Answer:
The answer to your question is molality = 0.22
Explanation:
Data
molality = ?
mass of glucose = 100 g
molar mass of glucose = 180 g
mass of water = 2.5 kg
Process
1.- Calculate the moles of glucose using proportions
180 g ------------------ 1 mol
100 g ------------------ x
x = (100 x 1) / 180
x = 100 / 180
x = 0.56 moles
2.- Calculate the molality
Formula
molality = moles / mass of solvent
- Substitution
molality = 0.56 / 2.5
- Simplification
molality = 0.22
Hello!!!
what exactly are you wanting to know? It isn’t clear from your question. Please advise and I will answer it for you ASAP. I think I know what you are wanting but I don’t want to assume.... thank you
Answer : 0.25 M
explanation :
- Molarity is the number of moles of solute per liters of solvent.
- Molarity (M) = (n) / V (liter) = 2 / 8 = 0.25 M
