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how does one calculate the percentage yield of sodium peroxoborate hexahydrate if the product was 5.4854g and the intial sodium tetraborate decahydrate was 3.0354g
what mass of solid sodium formate (of mw 68.01) must be added to 105 ml of 0.55 mol/l formic acid(HCOOH) to make a buffer solution having a ph of 3.96? ka=0.00018 for HCOOH
How many grams of KO2 are needed to produce 120.0 L of O2 at 19.5 degrees Celsius and 1.00 atm? Given the balanced equation below:
Enter the data into a spreadsheet. and construct a standard-additions plot of the data.
In the reaction between butanal and propanal, two different aldehydes are used and thus four different aldol addition products can be formed (which makes this an undesirable route for making aldols). Depict the skeletal structure of the aldol addi..
identify the absorptions associated witht he carbonyl group and with the aromatic rings
Why did the grape juice change color when an acid or base was added. 5. You added a base, sodium bicarbonate, to test tube 1 that contained citric acid and an acid to test tube 2 that contained base.
The subsequent is the overall balanced reaction for a lead-acid battery. Explain what is the balanced half-reaction that goes on at the cathode without electrons indicated
A mixture of pentane and hexane has a vapor pressure of 258 torr. The standard vapor pressure of pentane is 425 torr. What is the mole fraction of pentane?
The reaction of an equimolar mixture of isopentyl alcohol also acetic acid will produce, at most 67% of the theoretical amount of isopentyl acetate. Confirm this with an equilibrium constant computation using K=4.2
If 0.1800 g of impure soda ash (Na2CO3) is titrated with 15.66 mL of 0.1082 M HCl, what is the percent purity of the soda ash. Na2CO3(aq) + 2 HCl(aq) ? 2 NaCl(aq) + H2O(mc048-1.jpg) + CO2(g)
By what factor (how many times) will the rate constant increase when the temperature is raised from 10°C to 28°C?
if a piece of aluminum with mass 3.90 g and a temperature of 99.3 degrees celcius is dropped into 10.0 cm cubed of
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