Cas(POA)2(s) +H2So,(aq) What masses of calcium sulfate and phosphoric acid can be produced from the reaction of 1.0 kg calcium phosphate with 1.0 kg concentrated sulfuric acid (98% H2SO4 by mass)? CaSO4(s)H3PO£(aq) 119. Hydrogen peroxide is used as a cleansing agent in the treat- ment of cuts and abrasions for several reasons. It is an oxidiz- sd ing agent that can directly kill many microorganisms; it de- composes on contact with blood, releasing elemental oxygen gas (which inhibits the growth of anaerobic microorganisms); and it foams on contact with blood, which provides a cleans- ing action. In the laboratory, small quantities of hydrogen per- Doxide can be prepared by the action of an acid on an alkaline earth metal peroxide, such as barium peroxide: H202(aq) + BaCl,(aq) BaO2(s) 2HCI (ag) What mass of hydrogen peroxide should result when 1.50 g barium peroxide is treated with 25.0 mL hydrochloric acid so- lution containing 0.0272 g HCl per mL? What mass of which reagent is left unreacted? 120. Silver sulfadiazine burn-treating cream creates a barrier against bacterial invasion and releases antimicrobial agents directly into the wound. If 25.0 g Ag2O is reacted with 50.0 g CioH1oN4SO2, what mass of silver sulfadiazine, AgC10HgN4SO2, can be pro- duced, assuming 100% yield? Ag,0(s) +2C10H10N4SO2(s)- 2AGC10H9N4SO2(s) + H20(I) 121. Hydrogen cyanide is produced industrially from the reaction of gaseous ammonia, oxygen, and methane: 2HCN(g) + 6H20(g) 2NH,(g) +30,(g) + 2CH,(g) If 5.00 x 103 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield? 122 nin th otarting material for many synthetic
Cas(POA)2(s) +H2So,(aq) What masses of calcium sulfate and phosphoric acid can be produced from the reaction of 1.0 kg calcium phosphate with 1.0 kg concentrated sulfuric acid (98% H2SO4 by mass)? CaSO4(s)H3PO£(aq) 119. Hydrogen peroxide is used as a cleansing agent in the treat- ment of cuts and abrasions for several reasons. It is an oxidiz- sd ing agent that can directly kill many microorganisms; it de- composes on contact with blood, releasing elemental oxygen gas (which inhibits the growth of anaerobic microorganisms); and it foams on contact with blood, which provides a cleans- ing action. In the laboratory, small quantities of hydrogen per- Doxide can be prepared by the action of an acid on an alkaline earth metal peroxide, such as barium peroxide: H202(aq) + BaCl,(aq) BaO2(s) 2HCI (ag) What mass of hydrogen peroxide should result when 1.50 g barium peroxide is treated with 25.0 mL hydrochloric acid so- lution containing 0.0272 g HCl per mL? What mass of which reagent is left unreacted? 120. Silver sulfadiazine burn-treating cream creates a barrier against bacterial invasion and releases antimicrobial agents directly into the wound. If 25.0 g Ag2O is reacted with 50.0 g CioH1oN4SO2, what mass of silver sulfadiazine, AgC10HgN4SO2, can be pro- duced, assuming 100% yield? Ag,0(s) +2C10H10N4SO2(s)- 2AGC10H9N4SO2(s) + H20(I) 121. Hydrogen cyanide is produced industrially from the reaction of gaseous ammonia, oxygen, and methane: 2HCN(g) + 6H20(g) 2NH,(g) +30,(g) + 2CH,(g) If 5.00 x 103 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield? 122 nin th otarting material for many synthetic
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The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
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Transcribed Image Text:Cas(POA)2(s) +H2So,(aq)
What masses of calcium sulfate and phosphoric acid can be
produced from the reaction of 1.0 kg calcium phosphate with
1.0 kg concentrated sulfuric acid (98% H2SO4 by mass)?
CaSO4(s)H3PO£(aq)
119. Hydrogen peroxide is used as a cleansing agent in the treat-
ment of cuts and abrasions for several reasons. It is an oxidiz-
sd
ing agent that can directly kill many microorganisms; it de-
composes on contact with blood, releasing elemental oxygen
gas (which inhibits the growth of anaerobic microorganisms);
and it foams on contact with blood, which provides a cleans-
ing action. In the laboratory, small quantities of hydrogen per-
Doxide can be prepared by the action of an acid on an alkaline
earth metal peroxide, such as barium peroxide:
H202(aq) + BaCl,(aq)
BaO2(s) 2HCI (ag)
What mass of hydrogen peroxide should result when 1.50 g
barium peroxide is treated with 25.0 mL hydrochloric acid so-
lution containing 0.0272 g HCl per mL? What mass of which
reagent is left unreacted?
120. Silver sulfadiazine burn-treating cream creates a barrier against
bacterial invasion and releases antimicrobial agents directly into
the wound. If 25.0 g Ag2O is reacted with 50.0 g CioH1oN4SO2,
what mass of silver sulfadiazine, AgC10HgN4SO2, can be pro-
duced, assuming 100% yield?
Ag,0(s) +2C10H10N4SO2(s)-
2AGC10H9N4SO2(s) + H20(I)
121. Hydrogen cyanide is produced industrially from the reaction
of gaseous ammonia, oxygen, and methane:
2HCN(g) + 6H20(g)
2NH,(g) +30,(g) + 2CH,(g)
If 5.00 x 103 kg each of NH3, O2, and CH4 are reacted, what
mass of HCN and of H2O will be produced, assuming 100%
yield?
122
nin th otarting material for many synthetic
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