1. How many grams of sodium
hydroxide (NaOH) will dissolve in 100
g of water at 15°C?

NAOH

Explanation:

1.Normally, solution percentages are defined as weight(solute)/weight(solution) or weight(solute)/volume(solution). So 60% NaOH solution should be 60g NaOH and 40g H20 (if w/w) or filling up 60g NaOH with water until you reach a total volume of 100mL (if w/v).

2.If NaOH is in pellet form and 60 % preparation is in W/V, then simply dissolve 60 g of NaOH in 100 ml of water. If NaOH is in form of solution then by knowing the grade (%) of original solution, use N1V1=N2V2.

the higher the current the higher the mag field around it the higher the influence on the compass

which piece of furniture will have the most inertia and give the furniture movers the most difficulty in moving?  

answer

a 75kg dining table