Chemistry, 24.03.2020 20:39 decoreyjpaipxv
Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl ( aq ) HCl(aq) , as described by the chemical equation MnO 2 ( s ) + 4 HCl ( aq ) ⟶ MnCl 2 ( aq ) + 2 H 2 O ( l ) + Cl 2 ( g ) MnO2(s)+4HCl(aq)⟶MnCl2(aq)+2H2O(l)+ Cl2(g) How much MnO 2 ( s ) MnO2(s) should be added to excess HCl ( aq ) HCl(aq) to obtain 385 mL Cl 2 ( g ) 385 mL Cl2(g) at 25 °C and 765 Torr 765 Torr ?
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Chemistry, 22.06.2019 22:10
Determine the ph of 0.10 m nh3 solution. nh3 is a weak base with a kb equal to 1.8 x 10-5 round answer to nearest whole number.
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Chemistry, 22.06.2019 22:30
Molecular iodine, i2(g), dissociates into iodine atoms at 625 k with a first-order rate constant of 0.271 s−1. part a part complete what is the half-life for this reaction?
Answers: 3
Chemistry, 23.06.2019 02:00
Why does ammonia, nh3, behave as a base when it reacts with an acid? z
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Chemistry, 23.06.2019 03:00
Air pressure is measured in pascals. for a professional american football game, the ball should be inflated to about 90,000 pascals. scientists studied the effects of air temperature on the pressure inside american footballs by taking these steps: 1. prepare 100 footballs. 2. measure each football's air pressure. 3. divide footballs into 10 groups. 4. place the groups in different lockers cooled to different air temperatures. 5. after 12 hours, remove the footballs from lockers. 6. measure each football's pressure again. 7. compare the new pressures to the starting pressures. what two terms best describe the variable "air pressure inside the football" in this experiment? independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative
Answers: 3
Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric ac...
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