For the reaction H2(g) + I2(g) ⇌ 2HI(g), Kc = 50 at a certain temperature. If the equilibrium concentrations are [H2] = 0.1 M and [I2] = 0.1 M, what is the equilibrium concentration of HI?

Which concentration unit is temperature-dependent because the volume of the solution can change with temperature?

What is the pH of a solution with a pOH of 9.0?

For the reaction CO(g) + H2O(g) ⇌ CO2(g) + H2(g), Kc = 1 at a certain temperature. If the initial concentrations are [CO] = 2 M and [H2O] = 2 M, what will be the equilibrium concentration of CO2?

What is the molality of a solution containing 3 moles of urea (formula weight = 60 g/mol) dissolved in 1 kg of water?

What is the hydroxide ion concentration of a solution with a pOH of 2.0?

If [OH-] = 2.5 x 10^-9 M, what is the pH of the solution?

Acme Company produces and sells widgets. During the current year, Acme produced 42,600 units, total variable manufacturing costs were $59,640, and total fixed manufacturing costs were $110,760. Operating income is $168,900 using variable costing and $227,868 using absorption costing. Acme’s per-unit manufacturing costs were the same in prior years. During the current year, the inventory level:

Acme Company, a retailer, is preparing its selling and administrative expenses budget for the month of June. Sales are budgeted at $500,000 for May, $450,000 for June, and $550,000 for July. Selling expenses are budgeted at $9,000 plus a percentage of monthly sales revenue. The selling expenses budget for the month of May is $24,000. Budgeted fixed administrative expenses include rent of $12,000 and depreciation expense of $7,100. Variable administrative expenses are budgeted at 4% of monthly sales revenue. Capital expenditures related to fixed assets used in selling and administrative activities are budgeted at $5,750 for the month of June. What are the budgeted cash payments for selling and administrative operating expenses for the month of June? 

Acme Company’s budgeted monthly sales are as follows: April $230,000, May $220,000, and June $210,000. Sales are 60% cash and 40% on account. Acme collects all its receivables in the month following the sale. Cost of goods sold is budgeted at 70% of sales revenue. Acme maintains an ending inventory balance equal to $60,000, plus 50% of the next month’s cost of goods sold. All inventory purchases are paid 20% in the month of purchase and 80% in the following month. What is the budgeted accounts payable balance on May 31?