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In this week's experiment, you prepared sodium hydrogen carbonate, commonly called baking soda. Next week, you will analyze your product. One way you will use is to convert NaHCO3 (MW = 84.0) to Na2CO3 (MW = 106) by heating the sample gently. Calculate the percent yield: Mass of crucible after cleaning: 13.4422g.
A 613-mL sample of unknown HCl solution reacts completely with Na2CO3 to form 11.1g CO2 . What was the concentration of the HCl solution
Bromocresol green, Ka = 2.0x10^-5, is yellow in its protonated form (HX) and blue in its ionized form (X^-). At what pH will bromocresol green be a perfect green color
Draw three stable, acyclic isomers of C3H6O. Using wet chemistry, show how you can distinguish between these three compounds.
a sample of N2O3(g) has a pressure of 0.019atm. the temperature(in K) is then double and the N2O3 undergoes complete decompositopn to NO2(g) and NO(g).
A 55.0-{ g} piece of ice at 0.0 C is added to a sample of water at 8.0 C. All of the ice melts and the temperature of the water decreases to 0.0 C.
When you calculate the molarity and molality of the EDTA solution are the values very similar or not. Explain if this is what you might expect for a dilute aqueous solution with a density very close to 1.0 g/mL.
determine the amount of heat (in kJ) given off when 1.42 * 10^4 g of NO2 is produced according to the following equation : 2 No(g) + o2(g) --> 2NO2(g) H = -114.6kj
considering the reaction where ammonium hydrosulfide nh4hs yields nh3ammonia and hydrogen sulfide h2s an equilibrium
The barrier of rotation around the c-c bond in bromo ethane is 15kj/mol. What energy value can you assign to a H-br elipsing interaction , knowing that H,H eclipsing interaction is 4kj/mol
Determine whether each of the phrases or examples describes a thioester, reduced cofactor, or phosphorylated compound:
Calculate the solubility of Ag2CrO4 in grams per liter under following conditions (the solubility product constant for silver chromate is 1.1 x 10-12)
a thermodynamic study of DyCl3 determined its standard enthalpy of formation from the following information. Determine delta (subscript f) H for DyCl3 from the following reaction enthalpies
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