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A student pipets 35mL of 0.0919M HCl solution in flask; how many mL 0.0919M NaOH will be required to neutralize the HCl solution?
what is the pH after the addition of 2.7*10-2 moles of KOH to 3.6*10-2 moles HCl if the resulting solution volume is 150mL
If 250.0 mL of 0.354 M Phosphoric acid need to be prepared, how many grams of H3PO4 need to be added to water to make this solution
The colors of the acid and base forms of the indicator bromocresol green are yellow and blue, respectively, and its pKa is 4.6. What color would be expected for the indicator in a solution of pH 6.0 and in a solution of pH 4.8?
The pOH of a solution is 9.4 . Calculate the hydrogen ion concentration of the soltution. What mass of KOH is necessary to prepare 800.0ml of a solution having a pH = 11.56
A star is estimated to have a mass of 2x10 to 36 kg. Assuming it to be a sphere of average radius 7.0x 10 to 5 km, calculate the average density of the star in units of grams per cubic centimeter.
Determine Qc if the following amounts (in moles) of each component is placed in a 10.00 L container.
based on mole ratios. a sample is 59.53 c 5.38h 10.68n and 24.40o what is its empirical formula. a 0.2000 gram sample
54g of a certain metal at 98 degree Celsius was placed into 80ml of water at 297K. Assuming no heat is lost to the surrounding, what is the temperature of the water and the metal
How many (a) kilometers, (b) Meters (c) centimeters, ad (d) millimeters are there in 0.800 miles calcuted to the correct numbers of significant figures
Calculate Hrxn for the reaction below. Ca(s) + 1/2 O2(g) + CO2(g) CaCO3(s) You are given the following set of reactions. Ca(s) + 1/2 O2(g) CaO(s) H = -635.1 kJ CaCO3(s) CaO(s) + CO2(g) H = 178.3 kJ kJ
What will you need to account for in you calculation. What things would you need to measure to make accurate calculations. What information would you need to look up.
To obtain the same antifreeze protection requires 76 g of propylene glycol to replace each 62 g of ethylene glycol. Calculate the mass of propylene glycol required to replace
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