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QUESTION 7 H2S (g) can be generated by the following reaction: 2 HCl(aq) + Fes(s) +...
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QUESTION 7 2 points Save Answer H2S (g) can be generated by the following reaction: 2 HCl(aq) + Fes(s) → FeCl2(aq) + H2S(g) What volume (at STP) of H2S gas can be generated from 14.4 mL of 0.447 M HCl and an excess of FeS? V=_ml
DO ALL PARTS AND SHOW ALL STEPS CLEARLY NO BAD HANDWRITING. USE SIGNIFICANT FIGURES. IF YOU...
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QUESTION 6 1 points Save Answer How many moles of gas are contained in a sample of gas that occupies 20.3 L at 0.87 atm and 320.4 K? QUESTION 7 2 points Save Answer H2S (g) can be generated by the following reaction: 2 HCl(aq) + Fes(s) → FeCl2(aq) + H2S(g) What volume (at STP) of H2S...
2) Consider a sample of gas that occupies 23.1 L at 1.13 atm. What volume will...
2) Consider a sample of gas that occupies 23.1 L at 1.13 atm. What volume will the same sample occupy if the pressure is increased to 3.05 atm while the temperature is held constant? 3) A fixed sample of gas occupies 25.9 mL at 211.3 K. What volume will the gas occupy at 336.6 K? 4) A fixed sample of gas exerts a pressure of 580 Torr at 284 K. What will the pressure be (in atm) if the temperature...
A. How many liters of H2S gas could be generated at STP from the reaction of...
A. How many liters of H2S gas could be
generated at STP from the reaction of dilute HCl with 15.55 kg of
an ore that is 15.7 % iron(II) sulfide by mass?
C. A mass of 0.3976 gof ore was dissolved in
I−(aq). The resulting solution required 17.98 mLof 0.01043
MNa2S2O3for complete titration. What is the percentage of copper in
the ore? Express your answer to four significant figures and
include the appropriate units.
Use and preparation of hydrogen sulfide...
H2S(aq) can be analyzed by titration with coulometrically generated I2. H2S + I2 S(s) + 2...
H2S(aq) can be analyzed by titration with coulometrically generated I2. H2S + I2 S(s) + 2 H+ + 2 I - To 49.20 mL of sample were added 4 g of KI. Electrolysis required 812 s at 52.6 mA. Calculate the concentration of H2S (µg/mL) in the sample.
Calcium metal reacts with acid to produce hydrogen gas: Ca(s) + 2 HCl(aq) + H2(g) +...
Calcium metal reacts with acid to produce hydrogen gas: Ca(s) + 2 HCl(aq) + H2(g) + CaCl2(aq) How many liters of hydrogen gas (at STP) would be produced in a reaction that consumed 3.6 g of HCI?
7. Shown below is the aqueous reaction of KNO2, HCl, and SnCl2. 2 KNO2 (aq) + 6 HCl (aq) + 2 SnCl2 (aq) à 2 SnCl4 (aq) +...
7. Shown below is the aqueous reaction of KNO2, HCl, and SnCl2. 2 KNO2 (aq) + 6 HCl (aq) + 2 SnCl2 (aq) à 2 SnCl4 (aq) + N2O (g) + 3 H2O (l) + 2 KCl (aq) a. Is this a redox reaction? If so, which atom was reduced and which atom was oxidized. Support your answer by determining the oxidation states of the relevant atoms. b. If 50.0 g of KNO2 is consumed in this reaction, how many...
QUESTION 2 When 56.68 g of magnesium metal reacts with excess HCl(aq) to form hydrogen gas...
QUESTION 2 When 56.68 g of magnesium metal reacts with excess HCl(aq) to form hydrogen gas and magnesium chloride, how many liters of H2 gas are produced at STP? (Hint: start by writing a balanced chemical reaction.) QUESTION 3 Methane (CH4) burns in air to form carbon dioxide and water as shown below. CH4(g)2 O2(g)CO2(g)2 H20(0) If a sample of methane occupies 344. mL at 1.37 atm, what volume (in mL) of oxygen gas at the same temperature and pressure...
Consider the following reaction: Mg (s) + 2 HCl (aq) → MgCl2 (aq) + H2 (g)...
Consider the following reaction: Mg (s) + 2 HCl (aq) → MgCl2 (aq) + H2 (g) ΔHrxn = –4.6 × 102 kJ a. Is this reaction endothermic or exothermic? Circle one. [1] b. How much heat is evolved when 1.37 g of Mg are dissolved in excess HCl? [5] c. If 1.37 g of Mg are dissolved in enough HCl to make 250.0 mL of solution in a coffee-cup calorimeter, what is the final temperature of the solution? (Assume density...
Chlorine can be prepared in the laboratory by the reaction of manganese HCl(aq), as described by...
Chlorine can be prepared in the laboratory by the reaction of manganese HCl(aq), as described by the chemical equation dioxide with hydrochloric acid, How much MnOXs) should be added to excess HCI(aq) to obtain 315 ml of Cla(g) at 25 "C and 795 Torr? Number g Mno,
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QUESTION 7 2 points Save Answer H2S (g) can be generated by the following reaction: 2 HCl(aq) + Fes(s) → FeCl2(aq) + H2S(g) What volume (at STP) of H2S gas can be generated from 14.4 mL of 0.447 M HCl and an excess of FeS? V=_ml
DO ALL PARTS AND SHOW ALL STEPS CLEARLY NO BAD HANDWRITING. USE
SIGNIFICANT FIGURES. IF YOU DON'T DO THIS I WILL DOWNVOTE YOU
QUESTION 6 1 points Save Answer How many moles of gas are contained in a sample of gas that occupies 20.3 L at 0.87 atm and 320.4 K? QUESTION 7 2 points Save Answer H2S (g) can be generated by the following reaction: 2 HCl(aq) + Fes(s) → FeCl2(aq) + H2S(g) What volume (at STP) of H2S...
A. How many liters of H2S gas could be
generated at STP from the reaction of dilute HCl with 15.55 kg of
an ore that is 15.7 % iron(II) sulfide by mass?
C. A mass of 0.3976 gof ore was dissolved in
I−(aq). The resulting solution required 17.98 mLof 0.01043
MNa2S2O3for complete titration. What is the percentage of copper in
the ore? Express your answer to four significant figures and
include the appropriate units.
Use and preparation of hydrogen sulfide...
Calcium metal reacts with acid to produce hydrogen gas: Ca(s) + 2 HCl(aq) + H2(g) + CaCl2(aq) How many liters of hydrogen gas (at STP) would be produced in a reaction that consumed 3.6 g of HCI?
QUESTION 2 When 56.68 g of magnesium metal reacts with excess HCl(aq) to form hydrogen gas and magnesium chloride, how many liters of H2 gas are produced at STP? (Hint: start by writing a balanced chemical reaction.) QUESTION 3 Methane (CH4) burns in air to form carbon dioxide and water as shown below. CH4(g)2 O2(g)CO2(g)2 H20(0) If a sample of methane occupies 344. mL at 1.37 atm, what volume (in mL) of oxygen gas at the same temperature and pressure...
Chlorine can be prepared in the laboratory by the reaction of manganese HCl(aq), as described by the chemical equation dioxide with hydrochloric acid, How much MnOXs) should be added to excess HCI(aq) to obtain 315 ml of Cla(g) at 25 "C and 795 Torr? Number g Mno,
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