Determine the pH of a 0.65 M aqueous solution of CH3NH2 (methylamine) and the concentration of all species in solution. The Kp of methylamine is 4.4 x 10-4. CH3NH2 (aq) H20 (1) CH3NH3* (aq) -OH (aq) The pH of the solution is [Select ] The concentration of CH3NH2 at equilibrium is [ Select] The concentration of CH3NH3* at equilibrium is [Select] The concentration of -OH at equilbrium is [ Select] <> <>

Gaseous ethane (CH,CH,) reacts with gaseous oxygen gas (02) to produce gaseous carbon dioxide (CO,) and gaseous water (H,O). If 1.05 g of water is produced from the reaction of 2.1 g of ethane and 4.2 g of oxygen gas, calculate the percent yield of water. Be sure your answer has the correct number of significant digits in it.

Orciprenaline (C11H17NO3, 211.258 g/mol) is a bronchodilator used in the treatment of asthma. The BP assay for orciprenaline tablets is described below. Read the following information carefully and answer the questions below. (Record your answers in decimal notation to the indicated significant figures OR decimal places) ASSAY – 20 tablets weighing 2.5506 g were crushed to a powder. A portion of the crushed powder (0.5489 g) was shaken with 50 mL of 0.1 M HCl, the mixture was filtered and made up to 100 mL. 10 mL of this solution was further diluted to 100 mL with 0.1 M HCl. The measured absorbance of the diluted solution at 276 nm was 0.581. Additional information: A1% = 72.3, stated content = 20 mg Calculate: a) The concentration of orciprenaline in the diluted solution in mg/L Calculate the answer by read surrounding text. mg/L (2 decimal places) b) The actual amount of orciprenaline (in mg) in the powder assayed. Calculate the answer by read surrounding text. mg (1 decimal place)…

Question8: Choose one answer. You decide to collect a bunch of cans of soda and measure the volume of soda in each can. Let x = the mumber of mL of soda in each can. What type of variable is x? 1) x is a discrete random variable. 2) x is a continuous random variable. 3) x is a constant.

lculation questions require you to enter a numerical answer. You should not include units in your reported an ough you should note them in your calculations. Unless the problem specifically ask for an answer in the pro significant figures, it is often in your best interest to enter as many digits as your calculator will give you. 1 Question 1 Given the unbalanced chemical equation, C5H12(1) + O2(g) → CO(g) + H20(1), which one of the following correctly expresses the mole ratio between CO and oxygen? 5 mole CO/11 mole O2 O 1 mole CO/1 mole O2 O 10 mole CO/11 mole O2 O 10 mole CO/6.5 mole O2 Question 2

Liquid octane (CH,(CH,) CH,) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,2) and CH:) '3 gaseous water (H,O). If 2.38 g of water is produced from the reaction of 4.57 g of octane and 12.0 of oxygen gas, calculate the percent yield of water. Be sure your answer has the correct number of significant digits in it.

Gaseous methane (CH,) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,) and gaseous water (H,O). If 1.35 g of water is produced from the reaction of 0.80 g of methane and 6.3 g of oxygen gas, calculate the percent yield of water. Be sure your answer has the correct number of significant digits in it.

Liquid hexane (CH,(CH,) CH,) reacts with gaseous oxygen gas (O2) to produce gaseous carbon dioxide (CO,) and gaseous water (H,0). If 42.3 g of carbon dioxide is produced from the reaction of 65.49 g of hexane and 143.2 g of oxygen gas, calculate the percent yield of carbon dioxide. Be sure your answer has the correct number of significant digits in it.

Liquid octane (CH;(CH,) CH;) reacts with gaseous oxygen gas (02) to produce gaseous carbon dioxide (CO2) and gaseous water (H,0). If 4.57 g of carbon dioxide is produced from the reaction of 2.28 g of octane and 15.8 g of oxygen gas, calculate the percent yield of carbon dioxide. Be sure your answer has the correct number of significant digits in it.

Liquid hexane (CH; (CH,) CH;) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO2) and gaseous water (H,O). If 50.5 g of water is produced from the reaction of 66.35 g of hexane and 323.0 g of oxygen gas, calculate the percent yield of water. Be sure your answer has the correct number of significant digits in it.