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1. A bottle is labeled 20.0 percent by mass HCl with a density of 1.096g/ml calculate the morality. Please show and explain work
2. What is the concentration in ppm of 3.70 L solution (d=1.00g/ml) containing 4.21x10^-7 kg of the pestcide DDT?
A buffer solution contains .11 mol of acetic acid and .14 mol of sodium acetate in 1.00 L what is the pH of the buffer after adding 3*10^-2 mol of KOH
To investigate how the change in concentration of a copper sulfate solution changes the voltage of the cell.
The reaction of aqueous magnesium bromide and aqueous lithium phosphate is represented by the balanced ionic equation.
Are we concerned with the amount of sample that we use in this experiment and list at least three pros and cons for using a small sample under 0.05g and a large sample over 2.0g
2 nh3g co2g --gt h2nconh2s h2ogammonia gas at 223degc and 90. atm flows into a reactor at a rate of 550. lmin. carbon
Which element will display an unusually large jump in ionization energy values between I3 and I4, its third and forth ionization energies. and why
An aqueous solution has a vapor pressure of 82.6 at 50 . The vapor pressure of pure water at this temperature is 92.6. What is the concentration of in mass percent
Silver crystallizes in face centered cubic unit cell. a silver atom is at edge of each lattice point the length of the edge of the unit cell is 0.4086 nm. What is the atomic radius of silver
Use the molar volume of a gas at STP to determine the volume (in {rm L}) occupied by 15.0 {rm g} of neon at STP.
Problem- What is the relative stability of alpha and beta-d-glucose pentaacetate. how can you account for the product mixtures that form under conditions of acidic and basic catalysis in the synthesis of alfa and beta D-glucose pentaacetate
When a space shuttle re-enters the atmosphere, its temperature rises and it can heat the surrounding air to 1260 degrees celcius. At that temerature some endothermic reactions take place that atlower temperatures are not spontaneous under standard..
The formula C6H5-CO-CH3 represents
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