Inorganic Chemistry Answers

The pressure applied by a boy on a bicycle pump was 2 Pascal. If the volume was increased to 2/3 the initial volume. Calculate the final pressure.

how many atom does sodium have ?

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1.a) All Bronsted-Lowry acids are Lewis acids but not all Lewis acids are Bronsted-Lowry acids. Explain this statement in not more than two sentences.

b) Identify a base and its conjugate acid from this reaction. Explain your reason in one sentence.

HC2H3O2(aq) + H2O(l) <-->H3O+(aq) + C2H3O2-(aq)

2. 0.75 kg charcoal completely burns with a sufficient supply of air. Nothing other than CO2 is produced. How much N2 gas (in Kg) is expected in the outlet gas stream? Air composition (approx.) = 80% N2 and 20% O2 (mol basis only). 

3. A wild rabbit. Would this creature act as sink or a receptor? Explain within two sentences. Name one environmental pollutant that can affect this structure. 

WHAT IS THE PRINCIPLE OF THE SEM METHOD?

What physico-chemical quantity is monitored in impedance electrochemical spectroscopy?

How the phase changes are detected with the help of differential thermal analysis?

Comparison between light field microscopy and electron microscopy.

Using your understanding of factors affecting reaction rate, which of the following explains why meat will spoil faster when sliced than when left unsliced?  

a. When you slice meat, a catalyst is being added, meaning the reaction will speed up and the meat will spoil faster.

b. There is more surface area when sliced than unsliced, meaning the reaction can go faster, so it will spoil faster.

c. There is more surface area when unsliced than sliced, meaning the reaction can go faster, so it will spoil faster.

d. The temperature for the unsliced meat is higher than sliced meat, so the reaction can go faster, so it will spoil faster.

Consider the reaction: 3 H2(g) + N2(g) « 2 NH3 (g) + heat

State the optimal temperature and pressure conditions necessary for maximum production of NH3 (meaning will pressure/temperature have to be high or low?) 

______pressure;  _______temperature

Based on equation 2, if hydrogen gas concentration increases, where would the equilibrium shift?

Eqn 2:

N2(g) + 3 H2(g) <--> NH3(g) + energy

a. left

b. right

c. no change