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If 2.00 g of Mg reacts completely with 50.0 mL of HCI solution, what is the molarity of the HCI solution?
At 4.00 L, an expandable vessel contains 0.864 mol of oxygen gas. How many liters of oxygen gas must be added at constant temperature and pressure
what is the sum of ALL the coefficients in the equation?
A temperature increase of 67.4 K was recorded after 1.500 g of metallic magnesium (24.305 amu) reacted completely with 100.0 mL of 1.00 M aqueous HCl in a non-ideal coffee cup calorimeter with a heat capacity of 16.0 J/K.
how many joules of heat are needed to raise the temperature of 591 grams of water from 25C to 55C?
A gas occupies a volume of 2.45 L at a pressure of 1.03 atm. What volume will the gas occupy as the pressure changes to 0.980 atm.
What causes cycloalkanes to have two less hydrogen atoms than similar alkanes that are open chain ones?
If the acid dissociation constant, Ksuba, for an acid HA is 8 x 10^-4 at 25 degree C, what percent of the acid is dissociated in a 0.50 M solution of HA at 25 degree C?
What do understand by the terms a) Empirical Formula b) isomerism and what conclusions can you draw from the following observations about the chemical nature of the organic liquid D?
Determining Copper in Brass, 1st I titrated Na2S2O3 and determined the molarity to be 0.164. I am having trouble with the calculations for the dissolution of brass.
A compound contains only carbon, hydrogen, nitrogen and oxygen. Combustion of 0.314 g of the compound produced 0.426 g CO2, and 0.0620 g H2O.
A sample of H2O with a mass of 46.0 grams has a temperature of -58.0C. How many joules of energy are necessary to melt 46.0 grams of ice.
A calorimetry experiment determined that the combustion of 1.01 g of H2 reacting with excess O2 producing H2O gave q=143 kJ. Calculate the change in enthaply.
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