I do believe it is C. wave length <span />
Answer:
D 1.0 g of powdered Zn(s) in 50. mL of 1.0 M HCl(aq) at 30.°C
Explanation:
There are several factors affecting and controlling the rate of chemical reactions.
Some of which are applicable in resolving this problem is the nature of the reactants and their concentration. Also, the temperature of the reaction is also very important.
- Reactants that powdered ensures a faster rate because, more surface area is exposed for the reaction.
- Also, the higher the temperature, the faster the reaction will take place.
- So, the powdered zinc and the higher temperature reaction will facilitate a better rate of reaction.
Nylon is a polymide.
Hope it helps you
PV = constant
V doubles, P will become half
New pressure = 100/2 = 50 torr
Answer:
0.991 grams of N₂ are present in the flask
Explanation:
Let's apply the Ideal gases Law to solve this:
P . V = n . R .T
Previously we have to convert Torr to atm (because the units of R, Universal Gases Constant). Let's think the rule of three:
760 Torr is 1 atm
19 Torr is (19 . 1)/ 760 = 0.025 atm
0.025 atm . 26L = n . 0.082 L.atm/mol.K . 224K
(0.025 atm . 26L) / (0.082 L.atm/mol.K . 224K) = 0.035 moles
Molar mass N₂ = 28 g/m
Mol . molar mass = mass → 0.035 m . 28 g/m = 0.991 grams