Determine the biomass (cell) yield (Y) for the biological oxidation of hydrogen (H2) by CO2 for microbes that can utilize H2 and CO2. Express your answer as grams of biomass (cells) per gram of H2. Use ammonium (NH4+) as the nitrogen source.
Determine the biomass (cell) yield (Y) for the biological oxidation of hydrogen (H2) by CO2 for...
Denitrification of wastewater can be obtained through autotrophic biological reactions. a. Write a balanced equation for denitrification of NO3 _ to N2 using S2O3 -2 (which oxidize to SO4 -2 ) using fs (max) and assuming the bacteria use ammonia as a nitrogen source for cell synthesis. b. B. How many grams of Na2S2O3 would need to be added to the wastewater per gram of NO3 - reduced?
1. Hydrogen gas, H2, reacts with nitrogen gas, N2, to form ammonia gas, NH3, according to the equation 2 NH3( 3 Нуе) + N, 2(g) 2(g) How many grams of H2 are needed to produce 14.43 g of NH3? 2. When propane (C,H8) burns, it reacts with oxygen gas to produce carbon dioxide and water. The unbalanced equation for this reaction is... С,На (9 + Оzе) CO2(g)H20(g) (g) This type of reaction is referred to as a complete combustion reaction...
1. Hydrogen gas, H2, reacts with nitrogen gas, N2, to form ammonia gas, NH3, according to the equation: 3 H2(g) + N2(g) → 2 NH3(2) - How many grams of H2 are needed to produce 14.43 g of NH3? 2. When propane (C2H8) burns, it reacts with oxygen gas to produce carbon dioxide and water. The unbalanced equation for this reaction is... CzHz (g) + O2(g) → CO2(g) + H2O(g) This type of reaction is referred to as a complete...
Under certain circumstances, carbon dioxide, CO2(g), can be made to react with hydrogen gas, H2(g), to produce methane, CH4(g), and water vapor, H2O(g): CO2(g)+4H2(g)→CH4(g)+2H2O(g) How many moles of hydrogen gas would be needed to react with excess carbon dioxide to produce 53.6 moles of water vapor? Express your answer with the appropriate units. For example, write the unit moles as mol.
One way to make hydrogen for a fuel cell is by reforming hydrocarbon fuel. For example, propane can be turned into hydrogen in two steps. In the first step, propane (C3Hs) and water react to form carbon monoxide and hydrogen: C,H(+3H,01g)- 3cOe) + 7H,e In the second step, carbon monoxide and water react to form hydrogen and carbon dioxide: CO(g)+ H2O(g) H2(8)+CO2(8) Suppose the yield of the first step is 92.96 and the yield of the second step is 83,...
Electrolysis Students will employ electrolysis in the oxidation of a neutral metal to determine the molar mass of the metal by measuring current and collecting hydrogen produced in the oxidationreduction reaction. Introduction Oxidation of a neutral metal refers to a chemical process in which the metal takes on a positive charge by losing one or more electrons. In an oxidation-reduction (redox) reaction this is accomplished by an electron transfer from the neutral metal to another reactant. Electrolysis is a technique...
1. Moles of Reactant to Mass of Reactant: Identify the iodide ions and ozone in the balanced chemical equation. Use mole ratio, then convert to grams. A method used by the EPA for determining the ozone concentration in the air is to pass an air sample through a bubbler containing iodide ions. The iodide ions remove the ozone according to the following reaction: O3(g) + 2 I-(aq) + H2O(l) → O2(g) + I2(aq) + 2 OH-(aq) How many grams of ozone...
Chemistry:
Experimental Cell Potential Lab report
please help checking my work and answering question #2 #3
#4
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*question #2 #3 #4*
Note that the ionic form of Ag is Ag' and of Fe is Fe Write a chemical reaction for each cell. For the reactants, choose the metal that was oxidized ion that was reduced spontaneously (i.e, a + potential) according to your data. (Thesethe elements!) Chemical reaction (oall) Cell notation (see text) (NA1 Zn(s)+Cu-Zn+Cu(s) r凸の, Zn(s) | Zn2...
Part A) What is ΔH∘rxn for the following chemical reaction? CO2(g)+2KOH(s)→H2O(g)+K2CO3(s) You can use the following table of standard heats of formation (ΔH∘f) to calculate the enthalpy of the given reaction. Element/ Compound Standard Heat of Formation (kJ/mol) Element/ Compound Standard Heat of Formation (kJ/mol) H(g) 218 N(g) 473 H2(g) 0 O2(g) 0 KOH(s) −424.7 O(g) 249 CO2(g) −393.5 K2CO3(s) −1150kJ C(g) 71 H2O(g) −241.8kJ C(s) 0 HNO3(aq) −206.6 Express the standard enthalpy of reaction to three significant figures and...
Use the tabulated electrode potentials to calculate K for the oxidation of nickel by H+: Ni(s)+2H+(aq)→Ni2+(aq)+H2(g) Express your answer using two significant figures. Standard reduction half-cell potentials at 25∘C Half-reaction E∘ (V) Half-reaction E∘ (V) Au3+(aq)+3e−→Au(s) 1.50 Fe2+(aq)+2e−→Fe(s) −0.45 Ag+(aq)+e−→Ag(s) 0.80 Cr3+(aq)+e−→Cr2+(aq) −0.50 Fe3+(aq)+3e−→Fe2+(aq) 0.77 Cr3+(aq)+3e−→Cr(s) −0.73 Cu+(aq)+e−→Cu(s) 0.52 Zn2+(aq)+2e−→Zn(s) −0.76 Cu2+(aq)+2e−→Cu(s) 0.34 Mn2+(aq)+2e−→Mn(s) −1.18 2H+(aq)+2e−→H2(g) 0.00 Al3+(aq)+3e−→Al(s) −1.66 Fe3+(aq)+3e−→Fe(s) −0.036 Mg2+(aq)+2e−→Mg(s) −2.37 Pb2+(aq)+2e−→Pb(s) −0.13 Na+(aq)+e−→Na(s) −2.71 Sn2+(aq)+2e−→Sn(s) −0.14 Ca2+(aq)+2e−→Ca(s) −2.76 Ni2+(aq)+2e−→Ni(s) −0.23 Ba2+(aq)+2e−→Ba(s) −2.90 Co2+(aq)+2e−→Co(s) −0.28 K+(aq)+e−→K(s) −2.92 Cd2+(aq)+2e−→Cd(s)...