Answer:
The answer would be C. 1852.3
Explanation:
Answer: 0.8 M
Explanation:
molarity = (moles of solute)/(liters of solution) = 1.25/1.5 = 0.8 M
Answer:
You cannot make observations if you are 57 seconds late into the lab.
Explanation:
The atomic nucleus can split by decay into 2 or more particles as a result of the instability of its atomic nucleus due to the fact that radioactive elements possess an unstable atomic nucleus.
Now, the primary particles which are emitted by radioactive elements in order to make them decay are alpha, beta & gamma particles.
The half life equation is;
N_t = N₀(½)^(t/t_½)
Where:
t = duration of decay
t_½ = half-life
N₀ = number of radioactive atoms initially
N_t = number of radioactive atoms remaining after decay over time t
We are given;
t = 57 secs
N₀ = 100 g
Now, half life of Nitrogen-16 from online sources is 7.2 seconds. t_½ = 7.2
Thus;
N_t = 100(1/2)^(57/7.2)
N_t = 0.4139g
We are told that In order to make observations, you require at least .5g of material.
The value of N_t you got is less than 0.5g, therefore you cannot make observations if you are 57 seconds late.
Answer:
It turns out that many materials can be a solid at a higher temperature if the pressure is also higher.
Explanation:
Answer:
Reaction happens in both directions..
Explanation:
This is dynamic equilibrium, where the reactants and products are converted into each other at the same rate. If the system is closed and the temperature is held constant, the chemical reaction will achieve dynamic equilibrium.