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What total mass of hydrogen is contained in 7.1 g of solution that is 51 % hydrogen peroxide (H2O2) by mass (the balance being water)?
Write a balanced equation for the reduction of ethyl acetoacetate to S(+) ethyl 3-hydroxybutanoate, show stereochemistry
Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitrogen and oxygen: 4KNO3(s)→ 2K2O(s) + 2N2(g) + 5O2(g)
When 25.0 mL of 0.750 M CdCl2 is mixed with 40.0 mL of 0.120 M (NH4)2S, CdS precipitates from the solution. How many moles of CdS is formed.
Determine the mass of the steel bar if the final temperature of the system is twenty one degree Celsius?
Using active extraction (changing the polarity) and gravity filtration to remove a component, describe how you would obtain pure naphthoic acid from this mixture.
Predict the mass of the most abundant fragment signal in the mass spectrum of 2,2-dimethylpentane. 85 amu 29
A 1.50L sample of neon gas at 1.10 atm and 25 degrees celsius is heated to 45 degrees celsius. The neon gas is then subjected to a pressure of 1.50 atm. Determine the new volume of the neon gas.
What mass of sucrose should be combined with 464g of water to make a solution with an osmotic pressure of 8.60atm at 280K? (Assume the density of the solution to be equal to the density of the solvent.)
One of the alkali metals reacts with oxygen to form a solid white substance. When this substance is dissolved in water, the solution gives a positive test for hydrogen peroxide, H2O2.
The density of an unknown gas is 4.00 grams per liter at 4.00 atmospheres pressure and 127 degrees C. What is the molecular weight of the gas?
A stock solution is prepared by adding 21 mL of 1 M AlCl3 to enough water to make 76 mL. What is the Cl- concentration of 40 mL of the stock solution?
Determine the molarity of a solution of twenty grams of Ammonium bromide, NH4Br, in enough water to produce 132 mL of solution?
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