1 mol ---- 2,02 g
4 mol ---- x g
x = 4 mol × 2,02 g / 1 mol = 8,08 g
Answer : The mass of this sample is 8,08 g.
:-) ;-)
Answer:
39g
Explanation:
Details of the solution is shown below. From the information provided regarding the N2 produced, we could calculate the amount of N2 produced and use that to find the mass of sodium azide reacted.
Answer:
Less
Explanation:
The hydronium from the HCl is used to neutralize the bicarbonate in the baking soda. The hydronium is the acid and the bicarbonate ion is the base while the sodium and chloride ions are pH-neutral. Since theres a 1:1 mole ratio of hydronium to HCl and bicarbonate to sodium bicarbonate, it would require less HCl to neutralize a less concentration baking soda solution.
Answer: The world’s supply of fossil fuels will decrease slowly until a replacement source is found