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The soda ash in your analysis was assumed to be pure Na2CO3. If some of the Na2Co3 is replaced by an equal number of formula weights of NaHCO3, how would the volume of acid change from
(a) The starting point to the phenolphthalein end point?
(b) The phenolphthalein end point to the bromocresol green end point?
(c) The starting point to the bromocresol green end point?
An Ionic Compound has the formula M4(NO3)2(PO4)2. What is the net charge on the metal ion M in this Compound.
commercial concentrated of nh3aq is 28 percent ammonia by mass. density of the solution 0.900 gml. compute the
What mass of barium sulfate can be produced when 100.0 ml of a 0.100 M solution of barium chloride is mixed with 100.0 ml of a 0.100 M solution of Iron(III) sulfate
Brass is a copper and zinc alloy containing 31.8% zinc by mass and having a density of 8.73 {\rm \frac{g}{cm^3}}. A fitting composed of common brass has a total volume of 335.6 {\rm cm^3}
When a 2.3L sample of hydrogen gas at 25oC is heated to 120oC at constant pressure, what is the new volume of the gas?
a student was given 45 ml of ethanol. it has a density of o.789 gml. this amount of ethanol was placed into 969 ml of
an automobile achieves a gas mileage of 34.0 mi/gal. how many kilometers can it travel on 1.5 L of gasoline.
in the experiment sodium bisulfite solution is added at the end in order tonbsp destroy the unreacted bromine. what
when 31 mL of 0.200 M HCl has been added to 39 mL of 0.0500 M NH3 solution? HCl is strong acid, Kb = 1.8 × 10-5 for NH3
The solubility of CO2 gas in water is 0.15g/100mL at a CO2 pressure of 760mmHg. What is the solubility of CO2 in a soft drink (which is mainly water) that was bottled under a CO2 pressure of 4.5atm
How many grams of TiCl4 are needed for complete reaction with 105L of H2 at 430 degrees C and 790mmHg pressure. How many liters of HCl gas at STP will result from the reaction described in part (a)
The first-order reaction 2N2O(g) --> 2N2(g) + O2(g), what is the concentration of N20 after 3 half-lives if 0.25 mol of N2O is initially placed into a 1.00-L reaction vessel
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