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A basic solution of CH3NH2 has a PH 8.94 with a Kb 4.4 x 10^-4. What is the concentration of CH3NH2 added to the solution?
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A 0.235g sample of a solid is 92.5% NaOH and 7.5% Ca(OH)2, by mass requires 45.6mL of a HCl solution for its titration. What is HCl molarity?
A sample of gas in a cylinder has an initial volume of 56.0 L , and you have determined that it contains1.60 moles of gas. The next day you notice that some of the gas hasleaked out. The pressure and temperature remain t ...
If 0.050 mol hydrochloric acid (HCl) is mixed with 0.050 mol of sodium hydroxide (NaOH) in a "coffee cup" calorimeter, calculate the temperature change of 34.6 g of the resulting solution if the specific heat of the solu ...
Calculate the volume of 6.0M NaOH solution that you would need to prepare 500mL of a .15M NaOH solution. (formula weight of NaOH = 40.00g/m)
An analysis of an oxide of nitrogen with a molecular weight of92.02 amu gave 69.57% oxygen and 30.43 % nitrogen. What is the empirical formula of the compound?
Give an example of when heat is released from water as it undergoes a change of phase.
What was the initial energy level of an electron if it was excited by a photon of wavelength 38.9µm and jumped to an energy level of 10?
A chemist makes 260. mL of silver(II) oxide AgO working solution by adding distilled water to 50.0 mL of a 0.000205 M stock solution of silver(II) oxide in water. Calculate the concentration of the chemist's working solu ...
What is the volume of a solution, in milliliters, that contains 1.5 g LiNO3 and has a concentration of 0.40 M?
What volume of 0.600 M HCl is required to react completely with 2.50 g of sodium hydrogen carbonate? NaHCO3(aq) + HCl(aq) ? NaCl(aq) + CO2(g) + H2 O(l)
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