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A closed rigid container into ally at 0c has a pressure of 375 torr find the pressure in tire when it’s temperature rises to 50c?
Exactly 1.387 g of compound Z was combusted to form 3.499 g CO₂ mo sand 0.614 g H₂O. Compound Z contains only carbon, hydrogen, and oxygen. Determine the compound's molecular formula if the molar mass of compound Z is 122.118 g/mole.
Calculate the grams of NaOH present in 600 mL of a 3.0 M NaOH solution
Consider the following unbalanced chemical equation:
H
2
O(l)→H
2
(g)
electricalcurrent
+O
2
(g)
H2O(l)→H2(g)electricalcurrent+O2(g)
A chemistry student tries to balance the equation by placing the subscript 2 after the oxygen atom in H
2
O
H2O.
Subject: Earth & Life Sciences (Grade 11 (SHS))
Question: How minerals can be used as indicators of specific environmental parameters? Justify your answer. (3 sentences only.)
If a given quantity of electricity liberates 0.65g of Zn2+, what amount of Hg2+ would be liberated by the same quantity of current?
[Zn = 65, Hg = 201]
A. 1.00g
B. 2.10g
C. 4.02g
D. 8.04g
Please show working
What is the final pressure inside a scuba tank after it cools from 25°C to -10°C? The initial pressure in the
tank is 130 atm.
Calculate the entropy change when graphite burns insufficient supply of oxygen as to graphite has 5.7J/molK, O2 has 205J/molK and CO2 has 213.6J/molK
Balance the following equations.
1. Fe + O2 → Fe2O3
2. CS2 + Cl2 → CCl4 + S2Cl2
3. Fe + H2O → Fe3O4 + H2
what happen to the amount of miles of SO2 when the total pressure on the equilibrium reaction
2SO2 + O2 > 2SO3
