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Question- Sodium metal has a crystal structure based on the body-centered cubic unit cell. What is the closest value to the mass of one unit cell of sodium metal?
Kindly Please put your best effort to provide the solution of above problem
A solution of methanol, CH3OH, cotains 55.0 grams of methanol in 100. mL of water solution. What is the molarity of methanol in the solution?
the pH at the equivalence point. the pH after adding 6.0 mL of acid beyond the equivalence point
In ESI, it is very important to regulate the pH of the solution. Therefore, the solution is usually buffered or has added acid. How does the solution pH influence the ionization efficiency and the distribution of charged species formed?
Compute the stoichiometric air/fuel ratio for burning compressed natural gas (CNG) if we presume that CNG is CH4.
Calculate the molar concentration of CO2 for a sample that has a pH of 6.220 and a HCO -3 concentration of 0.0020 M. For carbonic acid pKa1=6.33 and pKa2=10.35.
How much heat is released when 105 g of stem at 100.0*c is cooled to ice at -15.0*c. The enthalpy of vaporization of water is 40.67 kj/mol, the enthalpy of fusion for water is 6.01 kj/mol, the molar heat capacity of liquid water is 75.4 kj/(mol x ..
the gas sample weighs 2.62grams then computes the molecular weight and determines the identity of the gas.
question for a given equilibrium reaction at 25 degrees celsius the equilibrium coefficient is 1.5x10 -4. if the value
Calculate the mass of ethylene glycol (C2H6O2) that must be added to 1.00 kg of ethanol (C2H5OH) to reduce its vapor pressure by 10.0 torr at 35 °C. The vapor pressure of pure ethanol at 35 °C is 1.00 × 10^2 torr.
How many milliliters of 3.4 M NH4Cl must be added to 250 mL of 0.23 M NH3 to obtain a buffer solution having pH=9.40
The mass of O (oxygen) in this sample can be obtained by the difference of the sample masses and the total calculated masses of H and C
A piece of lead is placed into a graduated cylinder. The level of the liquid rises from 235 to 305 mL. What is the mass in grams of the lead if the density of lead is 11.3g/cm3?
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