What will the volume be -100 c and the same pressure
a sample of nitrogen gas occupies 1.55 L at 27.0 C and 1.00 atm pressure. What will the volume be -100 C and the same pressure?
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Predict how the solubility of the ammonium chloride would be affected. Explain the basis for each of your predictions.
A quantity of 2.0 * 10^2 mL of 0.862 M HCL is mixed with 2.00 * 10^2 mL of 0.431 M Ba(OH)2. How many moles of water are produced in the reaction?
a 150 ml buffer solution containing 0.100 M hydrocyanic acid (HCN ka=6.2 x 10^-10) and .100 M soudium cyanide (NaCN) has 30.0 mL of .120 M KOH added to it. What is the pH of the solution after the KOH has been added?
An equilibrium mixture of O2, SO2, and SO3 contains equal concentration of SO2 and SO3. Calculate the concentration of O2 if Kc =280 for the reaction.
What is the molality of a solution that contains 3.0g urea (molecular weight = 60 amu) in 100g of benzene?
Copper is elctroplated from CuSO4 solution. A constant current of4.00 amp is applied by an external power supply. How long will it take to deposit 1.00x10^2 g of Cu? The atomic mass of copper is 63.546.
What is the osmotic pressure of this solution at 25.0°C?
The concentration of alcohol (CH3CH2OH) in blood, called the blood alcohol concentration of BAC, is given in units of grams of alcohol per 100ml of blood. The legal definition of intoxication, in many states of the US, is that the BAC is 0.08 of h
A sample of air contains 78.08 % nitrogen, 20.94 % oxygen, 0.05% carbon dioxide, and 0.930% argon by volume. How many molecules of each gas are present in 1.00 L of the sample at 39 C and 1.00 atm?
How many grams of carbon dioxide are produced when 2.50g of sodium hydrogen carbnate reacts with excess citric acid according to the equation: 3NaHCO3 + H3C6H5O7 -> Na3C6H5O7 + 3CO2 + 3H2O
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