General Chemistry Answers

when 1.50 mol CO2 and 1.50 mol H2 are placed in a 3.00-L container at 395°C, the following reaction occurs: CO2(g) + H2(g) = CO(g) + H2O(g). If Kc = 0.802, what are the concentrations of each substance in the equilibrium mixture?

1. 5.00 g NaOH and 5.00 g Ba(OH)2 were used to prepare 1L solution each. Which solution will be more basic? (MM NaOH=40, Ba(OH)2=171.3)

2. You decide to test the pH of your brand new swimming pool. The instruction manual advises to keep it between 7.2-7.6. Shockingly, you found out that the pH of your pool is 8.3! What kind of chemical should you add?

What mass of CuSO4(s) is present in 10.0 mL of the final dilute solution?  

10.3 moles of H2O are produced. How

many moles of Fe are also produced?

consider th following reaction, initially at equilibrium: N2(g) + 3H2(g) 2NH3(g) + 92 Kj J/mol would the reactants or products have the greatest amount of entropy in this rwacion

1. Which pair of valence electron configuration represent two elements with similar chemical properties? a.1s²,3s² b.1s²,2s²2p¹ c.2s²,2s²2p⁶ d.2s²2p¹,2s²2p²

2. Which energy level within a group represents the biggest cationic size? a.n=1 b.n=2 c.n=3 d.n=4

3. What are the possible values of the magnetic quantum number? a.n b.0 to n-1 c.-l to +l d.+1/2, -1/2

1. a sample of helium gas contained in a balloon is warmed. if the balloon originally measures 1.5 L at 25 degree celsius, what is its volume at 85 degree celsius at constant pressure?

List five characteristics by Which compound can be distinguished from mixture ?

Le Chatelier's Principle predicts that __________ will result in an increase in the number of moles of SO3 in the reaction container. A) increasing the volume B) decreasing the pressure C) decreasing the temperature D) removing some oxygen 

Le Chatelier's Principle predicts that __________ will result in an increase in the number of moles of SO3 in the reaction container.

A) increasing the volume

B) decreasing the pressure

C) decreasing the temperature

D) removing some oxygen