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please show working. Thanks Question 8 (2 points) Potassium nitrate decomposes to potassium nitrite and oxygen. What...
Potassium nitrate decomposes to potassium nitrite and oxygen. 2KNO3(s)→2KNO2(s)+O2(g) What volume, in liters, of O2 can...
Potassium nitrate decomposes to potassium nitrite and oxygen. 2KNO3(s)→2KNO2(s)+O2(g) What volume, in liters, of O2 can be produced from the decomposition of 58.0 g of KNO3 at 43 ∘C and 1.39 atm ? Express your answer with the appropriate units.
1.Potassium nitrate decomposes to potassium nitrite and oxygen. 2KNO3(s)→2KNO2(s)+O2(g) What volume, in liters, of O2 can...
1.Potassium nitrate decomposes to potassium nitrite and oxygen. 2KNO3(s)→2KNO2(s)+O2(g) What volume, in liters, of O2 can be produced from the decomposition of 54.0 g of KNO3 at 33 ∘C and 1.11 atm ? Express your answer with the appropriate units. 2,On a climb up Mt. Whitney, the atmospheric pressure drops to 507 mmHg . A.What is the pressure in atmospheres?Express the pressure in atmospheres to three significant figures. B.What is the pressure in torrs? Express the pressure in torrs to...
what do I do? 3. Solid potassium nitrate is decomposed by heating to give potassium nitrite...
what do I do?
3. Solid potassium nitrate is decomposed by heating to give potassium nitrite and oxygen gas. If 1.00 g of potassium nitrate is heated, what is the milliliter volume of oxygen gas at STP? 42 KNO2(s) 02(8) 2 KNO,(6) 4. Potassium metal reacts with water to give potassium hydroxide and hydrogen gas. If 50.0 mL of hydrogen gas is produced at STP, what is the mass of potassium that reacted? На) 2 КОН аg) 2 K(s) 2...
Potassium chlorate decomposes in the following manner: 2 KCIO3 (s) → 2 KCl(s) + 3 O2...
Potassium chlorate decomposes in the following manner: 2 KCIO3 (s) → 2 KCl(s) + 3 O2 (s) If you start with 3.00 g of potassium chlorate, how many moles of oxygen will be produced? (first blank is a number, the next the unit) Assuming a temperature of 24.0°C and a pressure of 0.982 atm, how many liters of gas are produced? (first blank is a number the next the unit) Question 17 (6 points) A sample of 3.30 grams of...
Question 5 (2 points) How many moles of oxygen are formed when 58.6 g of KNO3...
Question 5 (2 points) How many moles of oxygen are formed when 58.6 g of KNO3 decomposes according to the following reaction? The molar mass of KNO3 is 101.11 g/mol. 4 KNO3(s) 2 K20(s)2 N2(g) + 5 O2(g) 0.290 mol 02 0.580 mol02 18.5 mol 02 0.724 mol 02 1.73 mol 02
QUESTION 1 What will be the pressure of 52.5 grams of oxygen gas in a glass...
QUESTION 1 What will be the pressure of 52.5 grams of oxygen gas in a glass container with a volume of 6 L at 15.4 °C? QUESTION 2 At what temperature in °C does 37.34 g of oxygen gas occupy 18.17 L at 622 mm Hg? QUESTION 3 Consider the reaction between hydrogen gas and oxygen gas to form water: 2 H2(g)O2(g)-»2 H20(g) How many grams of water could be produced by the reaction of 5.1 liters of hydrogen with...
Question 1 (1 point) Reaction of chromium metal with phosphoric acid produces chromium(lI) phosphate and hydrogen gas....
Question 1 (1 point) Reaction of chromium metal with phosphoric acid produces chromium(lI) phosphate and hydrogen gas. Select the correct balanced equation O2Cr(s)+2H3PO4laq)-- 2CrPO4(s)+6H(g) O2Cr(s)+2H3PO4laq)--2CrPO4(s)+3H2(g) O3Cr(s)+3H3PO4(aq)--Cr3(PO4]3(s)+3 H2{g) O2Cr(s)+2H3PO3(aq)--2CrPO3(s)+3H2(g) Question 2 (1 point) Methane gas (CH4) reacts with steam (H20 (g)) to produce hydrogen gas and carbon monoxide gas. Select the correct balanced equation. OCHalg) +H20(g) -- 6H(g)+CO(g) O2CH4(8)+H20(g)- 3H2(g)+2CO(g) OCH4(8) +H20(g) - 3H2(g)+CO(g) OCH4(8) +2H208)-- 4H2{g)+CO2{g) Question 3 (1 point) When the following equation is balanced using the smallest possible...
0/ 1 pts Question 2 During a certain titration, 35.0 mL of 0.175 M aqueous sulfuric...
0/ 1 pts Question 2 During a certain titration, 35.0 mL of 0.175 M aqueous sulfuric acid was required to exactly neutralize 49.0 mL of sodium hydroxide. Determine the molarity of the base. H2SO4 (aq) + 2NaOH(aq) + 2 H2O (0) + Na2SO4 (aq) [balanced] 0.125 M 6.00 x 10 M 0.250 M 0.175 M 0.600 M 2ct Question 6 0/1 pts Calculate the pressure exerted by 5.12 grams of chlorine gas in a 850 mL sealed flask at 27.0°C....
Question 51 (8 points) A 10 gram sample of which substance contains the greatest number of...
Question 51 (8 points) A 10 gram sample of which substance contains the greatest number of hydrogen atoms? 10 grams of CH4 10 grams of HCI 10 grams of PH 3 10 grams of H2 Question 52 (8 points) What is the oxidation number of nitrogen in the nitrate ion? :0: +6 +5 O-1 +1 Question 49 (8 points) Which set of quantum numbers is correct and consistent with n = 4? me = -3 ms = +1 me =...
please help Question 38 (8 points) What element is oxidized and what is the oxidizing agent...
please help
Question 38 (8 points) What element is oxidized and what is the oxidizing agent in the reaction below? Fe2O3(s) + 3CO(g) - 2Fe(s) + 3CO2(e) Iron is oxidized, and the oxidizing agent is Fe2O3. Carbon is oxidized, and the oxidizing agent is Fe2O3. Iron is oxidized, and the oxidizing agent is CO. Carbon is oxidized, and the oxidizing agent is Co. Question 39 (8 points) What isotope is depicted in the figure? Key =proton =neutron lithium-7 helium-3 helium-4...
what do I do?
3. Solid potassium nitrate is decomposed by heating to give potassium nitrite and oxygen gas. If 1.00 g of potassium nitrate is heated, what is the milliliter volume of oxygen gas at STP? 42 KNO2(s) 02(8) 2 KNO,(6) 4. Potassium metal reacts with water to give potassium hydroxide and hydrogen gas. If 50.0 mL of hydrogen gas is produced at STP, what is the mass of potassium that reacted? На) 2 КОН аg) 2 K(s) 2...
Potassium chlorate decomposes in the following manner: 2 KCIO3 (s) → 2 KCl(s) + 3 O2 (s) If you start with 3.00 g of potassium chlorate, how many moles of oxygen will be produced? (first blank is a number, the next the unit) Assuming a temperature of 24.0°C and a pressure of 0.982 atm, how many liters of gas are produced? (first blank is a number the next the unit) Question 17 (6 points) A sample of 3.30 grams of...
Question 5 (2 points) How many moles of oxygen are formed when 58.6 g of KNO3 decomposes according to the following reaction? The molar mass of KNO3 is 101.11 g/mol. 4 KNO3(s) 2 K20(s)2 N2(g) + 5 O2(g) 0.290 mol 02 0.580 mol02 18.5 mol 02 0.724 mol 02 1.73 mol 02
QUESTION 1 What will be the pressure of 52.5 grams of oxygen gas in a glass container with a volume of 6 L at 15.4 °C? QUESTION 2 At what temperature in °C does 37.34 g of oxygen gas occupy 18.17 L at 622 mm Hg? QUESTION 3 Consider the reaction between hydrogen gas and oxygen gas to form water: 2 H2(g)O2(g)-»2 H20(g) How many grams of water could be produced by the reaction of 5.1 liters of hydrogen with...
Question 1 (1 point) Reaction of chromium metal with phosphoric acid produces chromium(lI) phosphate and hydrogen gas. Select the correct balanced equation O2Cr(s)+2H3PO4laq)-- 2CrPO4(s)+6H(g) O2Cr(s)+2H3PO4laq)--2CrPO4(s)+3H2(g) O3Cr(s)+3H3PO4(aq)--Cr3(PO4]3(s)+3 H2{g) O2Cr(s)+2H3PO3(aq)--2CrPO3(s)+3H2(g) Question 2 (1 point) Methane gas (CH4) reacts with steam (H20 (g)) to produce hydrogen gas and carbon monoxide gas. Select the correct balanced equation. OCHalg) +H20(g) -- 6H(g)+CO(g) O2CH4(8)+H20(g)- 3H2(g)+2CO(g) OCH4(8) +H20(g) - 3H2(g)+CO(g) OCH4(8) +2H208)-- 4H2{g)+CO2{g) Question 3 (1 point) When the following equation is balanced using the smallest possible...
0/ 1 pts Question 2 During a certain titration, 35.0 mL of 0.175 M aqueous sulfuric acid was required to exactly neutralize 49.0 mL of sodium hydroxide. Determine the molarity of the base. H2SO4 (aq) + 2NaOH(aq) + 2 H2O (0) + Na2SO4 (aq) [balanced] 0.125 M 6.00 x 10 M 0.250 M 0.175 M 0.600 M 2ct Question 6 0/1 pts Calculate the pressure exerted by 5.12 grams of chlorine gas in a 850 mL sealed flask at 27.0°C....
Question 51 (8 points) A 10 gram sample of which substance contains the greatest number of hydrogen atoms? 10 grams of CH4 10 grams of HCI 10 grams of PH 3 10 grams of H2 Question 52 (8 points) What is the oxidation number of nitrogen in the nitrate ion? :0: +6 +5 O-1 +1 Question 49 (8 points) Which set of quantum numbers is correct and consistent with n = 4? me = -3 ms = +1 me =...
please help
Question 38 (8 points) What element is oxidized and what is the oxidizing agent in the reaction below? Fe2O3(s) + 3CO(g) - 2Fe(s) + 3CO2(e) Iron is oxidized, and the oxidizing agent is Fe2O3. Carbon is oxidized, and the oxidizing agent is Fe2O3. Iron is oxidized, and the oxidizing agent is CO. Carbon is oxidized, and the oxidizing agent is Co. Question 39 (8 points) What isotope is depicted in the figure? Key =proton =neutron lithium-7 helium-3 helium-4...
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