Answer:
before I tell you the answer what is your name?
Explanation:
With the palm of your hand, push the lid down, as you apply this pressure on the lid twist slightly. Once you are able to get movement, use your fingers to keep twisting until the lid is completely off. :)
2.03 kg = 2030 grams
2030g C6H8O7 (1 mol/ 192.124g) = 10.6 mol C6H8O7
Answer:True
Explanation:
If a substance is pure, it will have exactly the same density as that reported for that particular substance in standard literature or vary within very narrow limits. Hence we can determine the purity of a gold sample by measuring it's density.
Answer:
0.2 M is the concentration of the resulting solution
Explanation:
M is a unit for concentration which means mole of solute in 1L of solution.
According to the received information, we have 4 g in 500 mL of solution.
In 0.5L we have 4 g of solute
In 1L we have (1 .4)/0.5 = 8 g of solute
Let's convert the mass in mole
Mass / Molar mass = Mole
Molar mass NaOH = 40 g/m
8g / 40 g/m = 0.2M