What was the molarity of the sodium carbonate solution
A 447 cm3 volume of Na2CO3 solution was warmed with an excess of sulfuric acid until all action ceased. A 5.0 L volume of dry CO2 gas measured at STP was given off and collected. What was the molarity of the sodium carbonate solution?
Expected delivery within 24 Hours
How could you determine whether a white powder was zinc sulfide or sodium carbonate using a hydrochloric acid solution? Write balanced equations.
Additioonal Feat! Dexter and Mandark team up in order toprevent the asteroids from destroying Earth. They start thisplanet saving feat by weighing a gelatin capsule (0.117g) Next they add pieces of aluminum/zinc alloy to the capsuleand weigh the c
What is the composition, in atom percent, of an alloy that consists of a) 90.5 wt% Ag and b) 9.5 wt% Cu? Assume that the atomic weights for silver and copper are, respectively, 107.87 and 63.55 g/mol.
DNA structure, called the i-motif can be formed from sequences containing stretches of cytosine (C) residues. In this structure protonated C forms a noncanonical base pair with anunprotonated C.
If 50.0 mL of 10 degrees Celcius water is added to 40.0 mL of 65.0 degree Celcius, calculate the final temperature of the mixture assuming no heat is lost to the surroundings including the container.
The heat of fusion of ice, ΔH fusion,is = 6.01 kj/mol. What mass of ice can be meltedwith the same quantity of heat as required to raise the temperture of 3.50 mol H2O by 50.00 degrees C?
If this energy were used to vaporize water at100 degrees Celcius, how much water in liters could be vaporized?(Assume that the density of water is 1.0 g/mL.) The heat of vaporization of water at 100 degrees Celcius is 40.7kJ/mole
For a certain gas that contains only carbon and hydrogen the masspercentage of carbon is known to be 85.62. It is alsoknown that 2.58 g of the gas has a volumeof 1.00 L and a pressure of 0.980 atm at 51.3 oC.
Compound A has a solubility of 18 grams per 100. grams of water at25 degrees C. Cooling a saturated, 200.-gram solution of compound Afrom 84 degrees C to 25 degrees C results in a precipitation of 11grams of the compound.
A homogeneous powder, derived from a sample of Ayre's Rock in Australia, is known to contain 33.31% Fe. The titration method used in your lab for Fe determinations is known to have a standard deviation of 0.27% Fe.
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!