Chemistry Answers

I characteristic of a substance that you can’t observe or measure is called a

What are the challenges to establish chemical industries in nepal like countries? Mention how these problems can strategically overcome?

A gas starts out with a volume of 516ml at a pressure of 345 torr. If the volume decreases to ml, but the temp doesn’t change, what is the new pressure?

The boiling point of an aqueous solution is 102.5°C. What is the freezing point of the solution?

Suppose that 0.04 mol NaOH is dissolved in 300 ml of the following 

buffer solution. 0.02 M NaCH3COO and 0.04 M CH3COOH. What is 

the final pH of the solution? Ka of conjugate acid =1.80 x 10-5

A solution of propylene glycol (antifreeze) in the car's radiator has a freezing point of -20°C. What is the molality of the solution?

Arrange the following according to increasing freezing point:

1m NaCl, 1m CaCl2, 1m C6H12O6, 1m AlCl3

Explain your answer.

What is the net average charge on the predominant form of lysine at Phil values of 2.0, 5.0, and 7.0

Write processes which occur on inert electrodes during electrolysis of FeCl3 and Ca(No3)2 acqueos solution

Phosphorous acid (H3PO3) can be prepared from phosphorus triiodide (PI3) according to the reaction:

〖PI〗_3 (s)+ H_2 O (l)→H_3 〖PO〗_3 (aq)+HI (g)

Balance the equation. If 150 grams of 〖PI〗_3 (MM = 411.7 g/mol) is added to 250 mL of H2O (MM = 18.01 g/mol, ρ=1.00 g/mL), identify the limiting and excess reagents. How many grams of H3PO3 (MM = 81.99 g/mol) will be theoretically produced?