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A buffer solution is prepared by adding 15.00 g of sodium acetate ( NaC2H3O2) and 12.50 g of acetic acid to enough water to make 500 mL of solution.
The buffer is diluted by adding enough water to make 1.50 L of solution. What is the pH of the diluted buffer?
When a 7.00-g sample of KCN is dissolved in water in a calorimeter that has a total heat capacity of 2.734 kJ·K-1, the temperature decreases by 0.460 K.
question the concentration of glucose in blood is approximately 90mg100 ml. what is the weightvolume percent
Suppose you have been assigned to evaluate different ways of delivering milk to customers. The more energy you conserve, the cheaper your product can be. Remember that work is directly tied to free energy. Your goal is to minimize wasted free ener..
Which solution should be the most acidic? 1) Zn(NO3)2(aq) 2) Cd(NO3)2(aq) 3) Ga(NO3)3 (aq) 4) Hg(NO3)2(aq) 5) Al(NO3)3(aq)
Ethanol (C2H5OH) melts at -114 °C. The enthalpy of fusion is 5.02 kJ/mol. The specific heats of solid and liquid ethanol are 0.97 J/g-K and 2.3 J/g-K, respectively.
How many moles of methane occupy a volume of 2000 mL at 50 degrees Celcius and 746 torr
Calculate the pH and the pOH of an aqueous solution that is 0.035 M in HCl(aq) and 0.095 M in HBr(aq) at 25°C.
in the addition of hbr to isobutylene shown below there are two possible products.a. this reaction is the markovnikov
What is the percent yield of CaO in the reaction CaCO3 yield CaO + CO2 if 5.33 g of CaO are obtained when 10.0 g of CaCO3 are used?
a sample of gas in a rigid container at 30 degrees celsius and 2.00 atm has its temperature increased to 40.00 degrees
When 20 mL of a 120 mL stock solution containing 2 M BaF2 is diluted to 80 mL, what is the concentration of F- in the new solution.
1 from a 1.015 g sample of a binary compound of calcium and bromine there was obtained 0.2035 g of ca. calculate the
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