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How many grams of C2,H2,O2,CO2 and H2O are present after the reaction complete
Tom wants his balloon back to normal size so he decides to put it on a heating vent. If
the balloon initially has a volume of 0.6 L and a temperature of 293 K, what will be the volume of
the balloon when it heats up to a temperature of 176°C?
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The following set of determination on separate aliquote of a pooled blood serum were reported 103,106,107 and 114meq/L one of the values appears suspect. Should the suspected be retained or discarded at 95% confidence level?
The Haber process was one of the most crucial breakthroughs in chemical science resulting from research aimed to avoid widespread famine at a time of massive population growth. The reaction conditions are optimal at 400 C, at 200 atmospheres of pressure, in the presence of a catalyst. If the partial pressure of N2(g) is 43.5 atm and H2(g) is 87.0 atm.,
N2(g) + 3H2(g) <--> 2NH3(g)
What is Kp for this reaction at this temperature? (enter the answer as a decimal to four significant figures)
Determine the Keq for the following equilibrium:
2CH4(g) ⇌ C2H2(g) + 3H2(g)
(CH4 = 2.5 x 10-3 M ; C2H2 = 0.01375 ; H2 = 0.04125)
Choose the substance in each pair with the higher entropy. 1 mole of N,(1) or 1 mole of N, (g) b. 3 moles of CH, (g) at 25°C or 2 moles of CH, (g) at 25°C c. aqueous d. 1 mole of HCl at standard conditions or 1 mole HCl at 60°C and 0.8 atm
A plant extract was analyzed by UV- vispectroscopy and the following data was obtained what is the moral absorptivity of the chromophore?
Conc-(M) absorbance
5×10- 5 0.051
10×10-5 0.098
15×10-5 0.157
Find the formula of the compound with the percent composition shown
O, 41.26
P, 19.97
Ca 38.76
2) Balance the following reactions by half-reaction method. Identify the oxidizing agent and the reducing agent. Show your process in balancing the reactions.
O.A. R.A.
a. Fe3+ + Sn2+ Fe2+ + Sn4+
The following set of lead determinations on separate aliquots of a pooled blood serum were reported: 103, 106, 107, and 114 meq/L. One value appears suspect. Should the suspected be retained or discarded at 95% confidence level.
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#339914 on Dec 2023