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Problem- Use the following standard-state free energy of formation data to calculate the acid-dissociation equilibrium constant (Ka) at for formic acid: Compound Gf o (kJ/mol) HCO2(aq) -372.3 H+ (aq) 0.00 HCO2 - (aq) -351.0
I require skilled aid to answer the given problem
Use Equation and assuming that core electrons contribute 1.00 and valence electrons contribute nothing to the screening constant, S, calculate the effective nuclear charge for the potassium ion and the chloride ion
What is the molecular formula of a compound given the molar mass of the compound is 205.4 g/mol and the empirical formula is C3H5.
You need to make 500 ml of 100 mM potassium phosphate buffer at pH 7.5. You have the stock solutions of KH2PO4 and K2HPO4 at 1M each. You will make the buffer by adding some of each of these stock solutions to water.
A student placed 13.0 g of glucose C6YH12O6 in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water
Explain many people think salt NaCl is added to water to raise the boiling point so pasta will cook faster. Explain how much salt in grams would need to be added to 2.14 L of water to raise the boiling point by 6.14 °C? Utilize 1.00 g/mL for densi..
what is the volume of a 12.0g sample of water. a piece of gold has a mass of 5.2g and it displaces 4.16 ml of water. calculate its density. which molecule are moving fast on average a swimming pool of water or a cup of water.
Which of the following is true when comparing the hydrolysis of esters in acidic solution with the hydrolysis of esters in basic solution. both the inorganic and organic products are the same in both cases
Concentrated sulfuric acid is used as a catalyst for the esterification of acetic acid in the preparation of isopentyl acetate. Why is sulfuric acid needed if another acid, acetic acid, is already present
Draw a circuit diagram that has two resistors in series with a DC voltage source. If resistor one (R1) is 758 kohms and resistor two (R2) is 712 kohms, then what is the current flowing through the circuit if the voltage is 8.49 V?
Before developing the dead-weight gauge, he worked in a mine shaft, and used a mercury manometer for measurements of pressure to more than 400 bar. Estimate the height of the manometer required.
The Ammonia gas is produced by reacting hydrogen gas with nitrogen gas. To produce 450 g of ammonia gas utilizing air as your source of nitrogen gas, define what volume of air is necessary if the air is introduced at 25°C and 740 mmHg
We do not have any gardening books, magazines, or access to the Internet (horrors!). We need to observe a number of characteristics for these plants. What are some of the characteristics that we want to observe? What might be your initial hypothes..
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