
کن Sodium chlorate (Na ceox) powder is used as the source of oxygen 4 oygen go...
The thermal decomposition of potassium chlorate can be used to produce oxygen in the laboratory. 2 KCIO3 (s) --> 2 KCl (s) + 3 O2 (9) What volume (L) of O2 gas at 25°C and 1.00 atm pressure is produced by the decomposition of 7.5 g of KClO 3 (s)? Select one: 0 a. 2.2 L O O O b. 4.5 L C. 11 d. 7.5 L e. 3.7 L
< Question 2 of 10 > When 0.738 g of sodium metal is added to an excess of hydrochloric acid, 7670J of heat are produced. What is the enthalpy of the reaction as written? 2 Na(s) + 2 HCl(aq) - 2 NaCl(aq) + H2(g) Enthalpy of reaction:
< Question 24 of 36 > In the reaction, 2 NaN,(s) — 2 Na(s) + 3N2(g) what mass of sodium azide, NaNz, would be required to produce 611 L of nitrogen, N2, measured at STP? mass: about us careers privacy policy terms of use contact us help
The reaction of sodium(s) with water(l) to form sodium hydroxide(aq) and hydrogen(g) proceeds as follows: 2Na(s) + 2H2O(1)—>2NaOH(aq) + H2(g) When 5.91 g Na(s) reacts with sufficient H2O(1), 47.4 kJ is evolved. Calculate the value of A,H for the chemical equation given. kJ/mol Submit Show Approach Show Tutor Steps
Small quantities of oxygen can be prepared in the laboratory by heating potassium chlorate, KCIO,(s). The equation for the reaction is 2 KCIO, 2 KCI+ 30, Calculate how many grams of 0, (g) can be produced from heating 68.1 g KCIO,($). mass Iodine is prepared both in the laboratory and commercially by adding Cl, (g) to an aqueous solution containing 2 Nal(aq) + Cl2(8) — 1(s) + 2 NaCl(aq) How many grams of sodium iodide, Nal, must be used to...
used to titrate a solution of iron(II) ions., with which it reacts according to Cerium(IV) sulfate Ce4(aq)Fe2 (aq)>Ce3*(aq) + Fe3 (aq) A cerium(IV) sulfate solution is prepared by dissolving 40.47 g of Ce(SO42 in water and diluting to a total volume of 1.000 L. A total of 19.41 mL of this solution is required to reach the endpoint in a titration of a 100.0-mL sample containing Fe(aq). Determine the concentration of Fe2 in the original solution It is desired precipitate,...