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When 50 ml of 1.5 M HCl is added to 100 ml of 1.5 M sodium hydroxide solution, temperature initially was 21.3 C and fainaly raised to 23.4 C, What is kJ of heat produced?
A reaction of 100mL of 1.35 M HCl and 100mL of 1.76 M NaOH is monitored and the following temperatures were recorded: starting temperature = 24.6 C; and final temperature = 38.8 C. Calculate the ΔH of this reaction.
When 50 ml of 1.5 M HCl is added to 100 ml of 1.5 M sodium hydroxide solution, temperature initially was 21.3 C and fainaly raised to 23.4C, What is kJ of heat produced? * (1 Point) 12381.86 mol 2211.05 mol 1102.9 4643.2 mo
A furnace is fed with a gaseous fuel having the composition: 50% CO, 30% H2, 5% CH4, 5% C2H6 and 10% O2. It is burned in the presence of dry air that is 50% in excess for combustion. Assuming complete combustion, determine a) the composition of the combustion gases and b) the cubic feet of dry air per lbmol of fuel gas at 60 degF and 750 mmHg.
Which of the following statement is not true regarding kinetic molecular theory?
Quatum Numbers
State the number of possible electrons described by the following.
n = 5, l = 0, ml = -2, ms = -1/2 *
1 point
Your answer
1s *
1 point
Your answer
l = 3 *
1 point
Your answer
M *
1 point
Your answer
3d *
1 point
Your answer
2p *
1 point
Your answer
n = 1, l = 0, ml = 0, ms = +1/2 *
1 point
Your answer
p *
1 point
Your answer
n = 4 *
1 point
Your answer
n = 3, l = 1 *
1 point
Your answer
1. Describe the graphical relationship between resistance and concentration.
5. Calculate ΔS° for the following changes, ΔS° value from the Table:
(a) SnCl4(l)⟶SnCl4(g)
(b) CS2(g)⟶CS2(l)
(c) Cu(s)⟶Cu(g)
(d) H2O(l)⟶H2O(g)
(e) 2H2(g)+O2(g)⟶2H2O(l)
(f) 2HCl(g)+Pb(s)⟶PbCl2(s)+H2(g)
(g) Zn(s)+CuSO4(s)⟶Cu(s)+ZnSO4(s)
12.5 of zinc trioxocarbonate (iv), zinc 03 were heated to a constant mass and residue treated with excess hydrochloric acid. Calculate the mass of zinc chloride that will be produced
- A canister was connected to a gas syringe and the valve opened slightly to allow some of the gas into the syringe. It was found that 0.200g of the gas took up a volume of 96.0 cm3 at a temp of 20.0 ℃ and a pressure of 1.02 x 105 Pa.
Calculate the molar mass of the gas mixture.
