Calculate the ka for the acid

Reference no: EM13154637

A solution is made by dissolving 0.040 moles of the weak acid HA in water to make 1.00 L of a solution whose pH is 4.90. Calculate the Ka for the acid.

Reference no: EM13154637

Questions Cloud

Journal entries to record transactions and adjustments : Prepare journal entries to record these transactions and adjustments for 2008 and 2009.

Calculate the ksp for the compound : At 25o C, the solubility of magnesium hydroxide Mg(OH)2 in water is 0.00429 grams per Liter. Calculate the Ksp for the compound. [NOTE that there are two moles of OH- per mole Mg(OH)2.]

Capital lease amortization and journal entries : Hughey Co. as lessee records a capital lease of machinery on January 1, 2011. The seven annual lease payments of $350,000 are made at the end of each year.

Journal entry-income tax expense-deferred income taxes : Prepare the journal entry to record income tax expense, deferred income taxes, and income taxes payable for 2010, assuming an income tax rate of 40% for all years.

Calculate the ka for the acid : A solution is made by dissolving 0.040 moles of the weak acid HA in water to make 1.00 L of a solution whose pH is 4.90. Calculate the Ka for the acid.

Explain important role in reducing standard error of mean : Why does the sample size play such an important role in reducing the standard error of the mean? What are the implications of increasing the sample size?

What is the activation energy of nitric oxide reaction : The second order reaction for the breakdown of nitric oxide to its elements has the rate constants of 0.0796 L/mol-s at 737 C and 0.0815 L/mol-s at 947 C. What is the activation energy of this reaction?

Merchandise on credit with terms : A company purchased $1,500 of merchandise on credit with terms 3/15, n/30. How much will be debited to Accounts Payable if the company pays $485 cash on this account within ten days?

What is the ph of the buffered solution : A buffer solution is prepared by adding 32.8 grams of sodium acetate, NaC2H3O2 to 1.00 L of 0.500 M acetic acid, CH3CO2H. Ka = 1.8 x 10-5 for acetic acid.

User Account

All Pages