Wine goes bad soon after opening because the ethanol (CH,CH,OH) in it reacts with oxygen gas (0,) from the air to form water (H,O) and acetic acid (CH,COOH), the main ingredient of vinegar. What mass of acetic acid is produced by the reaction of 3.27 g of oxygen gas?

Suppose a 500. mL flask is filled with 0.60 mol of H,S, 0.10 mol of CS, and 1.5 mol of H,. This reaction becomes possible: CH (g) + 2H,S (g) =CS,(g)+4H, (g) Complete the table below, so that it lists the initial molarity of each compound, the change in molarity of each compound due to the reaction, and the equilibrium molarity of each compound after the reaction has come to equilibrium. Use x to stand for the unknown change in the molarity of CH4. You can leave out the M symbol for molarity. CHA H,S cs, H2 initial change equilibrium

Suppose a 250. mL flask is filled with 1.3 mol of H,S, 1.2 mol of CS, and 0.70 mol of H,. This reaction becomes possible: CH,(s) + 2H,S (g) – cs,(e)+ 4H,(g) Complete the table below, so that it lists the initial molarity of each compound, the change in molarity of each compound due to the reaction, and the equilibrium molarity of each compound after the reaction has come to equilibrium. Use x to stand for the unknown change in the molarity of CH. You can leave out the M symbol for molarity. CH H,S Cs, H2 initial change equilibrium Olo X O

If 45.0 g of O2 are mixed with 6.70 g of H2 and the mixture is ignited, what massof water is produced?

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Suppose a 250. mL flask is filled with 0.10 mol of CH, 0.50 mol of H,O and 1.8 mol of H,. This reaction becomes possible: CH, (g) +H,0(g) = CO(g)+3H,(g) Complete the table below, so that it lists the initial molarity of each compound, the change in molarity of each compound due to the reaction, and the equilibrium molarity of each compound after the reaction has come to equilibrium. Use x to stand for the unknown change in the molarity of CO. You can leave out the M symbol for molarity. dla CH, H,O CO H, initial change equilibrium

4 Fe +3 O2 ---> 2 Fe2O3 How many litters of iron metal are needed to react completely with 4.35 mol oxygen gas?

3.4 A 5.17 g sample of vinegar is titrated with 0.018 M NaOH. If the vinegar requires 42.3 mL of the NaOH solution for complete reaction, what is the mass percentage of acetic acid in the vinegar? (i.e. calculate the % of CH3COOH in the vinegar) The reaction is: NaOH(aq) + CH3COOH(aq) H2O(l) + NaCH3COO (aq) M,(CH3COOH) = 60.0

Suppose a 500. mL flask is filled with 0.10 mol of H,O, 0.40 mol of CO, and 1.3 mol of H,. This reaction becomes possible: CO (g) + H,O(g) -Co,g)+H2(g) Complete the table below, so that it lists the initial molarity of each compound, the change in molarity of each compound due to the reaction, and the equilibrium molarity of each compound after the reaction has come to equilibrium. Use x to stand for the unknown change in the molarity of H,O. You can leave out the M symbol for molarity. CO H,0 со, H, initial ? change equilibrium

A sample of 0.75 g of hydrogen gas was obtained by reacting 32.5 g hydrochloric acid with 18.0 g magnesium. Mg(s) + 2 HCI (aq) --> MgCl₂ (aq) + H₂(g) What is the percent yield for this reaction? 100% 83% 41% 50%