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How many grams of NaOH are needed to neutralize 20.0 mL of 0.150 M H2SO4 solution? (b) How many liters of 0.500 M HCl(aq) are needed to react completely with 0.100 mol of Pb(NO3)2(aq), forming a precipitate of PbCl2(s)?
Suppose a 5.00mL sample of vinegar required 27.58mL of 0.123 M sodium hydroxide to reach the endpoint. What is the molarity of acetic acid in the vinegar?
Nitrogen dioxide and water react to produce nitric acid HNO3 and nitrogen monoxide.
A buffer is formed by mixing 100 mL of 0.1 M NH4Cl with 50 mL of 0.3 M NH3. To this solution 12 mL of 0.1 M NaOH is added. What is the approximate pH of the new solution after neutralization? Assume a Kb of 1.8 × 10^-5 for the weak base.
What is the percent by mass of NaHCO3 in a solution containing 60 g of NaHCO3 dissolved in 600 mL of H2O?
when 0.800 grams of NaOH is dissolved in 100.0 grams of water, the temperature of the solution increases from 25.00 degree to 27.06 degree .
What is the pressure (in atmospheres) of a sample of gas trapped in the closed-tube mercury manometer
Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO(s) + H2O(l) --> Ca(OH)2(s). In a beaker, 1.45 g of H2O is added to 1.50g of CaO
what would be the proper sequence for the following compounds to be listed from highest melting point to least?
When 2.45 g of an unknown weak acid HA with a molar mass of 85.0g /mol is dissolved in 250.0g of water, the freezing point of the resulting solution is -0.256 C.
Sulfur dioxide (SO2) is an unwelcome result of burning soft coal in power plants. Some of the SO2 ends up as sulfuric acid in acid precipitation.
what is the corresponding pressure difference between points A and B, in mmHg. At which point (A or B) is the pressure higher, and why? The temperature is 60 °F throughout
Determine the mass of this substance should evaporate in order to freeze 190 grams of water at 25 degree Celsius initially? It is given that the heat of fusion H 2 O= 334 specific heat of H 2 O= 4.18
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