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0.70g of hydrogen chloride (HCl) is dissolved in water to make 6.0L of solution. What is the pH of the resulting hydrochloric acid solution?
0.85 g of sodium hydroxide (NaOH) pellets are dissolved in water to make 8.0 L of solution. What is the pH of this solution?
write a balanced equation for the decomposition reaction described using the smallest possible integer
at 665 degc keq is 0.234 for the following reaction4as bg ?2cs dgif b gas at 0.221 bar is injected into a container
A quantity of 7.031 g of an organic compound is dissolved in water to make 282.0 mL of solution. The solution has an osmotic pressure of 1.43 atm at 27°C.
Concentrated acetic acid is a Class II combustible liquid. What is the molecular weight of acetic acid that will form 2 moles of CO2 assuming complete combustion?
For the following electrochemical cell Cu(s)|Cu2 (aq, 0.0155 M)||Ag (aq, 1.50 M)|Ag(s) write the net cell equation. phases are optional. do not include the concentrations
Problem- Formula H2O, mass in grams 7.6, molar mass 18g/mol, moles .42 mol, 1) What are the mole and how many atoms in the element
The weight of the initial mixture is 5.020 g, and the weight of the resulting anydrous compounds is 2.988 g. Which choice is closest to the percent by mass of copper(II) sulfate pentahydrate in the original mixture? Steps?
If 4.00 g of the unknown compound contained 0.133 mol of and 0.267 mol of H , how many moles of oxygen, O , were in the sample?
What is the concentration of X when the potential is 0.0490 V? Assume that the electrode follows the Nernst equation, the temperature is at 25°C, and that the activity coefficient of X is 1.
At 900 K the following reaction has Kp = 0.345. 2 SO2(g) + O2(g) 2 SO3(g) In an equilibrium mixture the partial pressures of SO2 and O2 are 0.165 atm and 0.755 atm, respectively.
A mixture of N2 and O2 has a density of 1.185 g/L at 25 degrees C and 1.00 atm. What is the mole fraction O2 in the mixture . Assume ideal gas behavior.
indicate the direction of the bond polarity of NH3 and CH4. are either of the molecules polar. is ClH3 polar. why or why not.
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