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5.19g of some unknown molecular compound is dissolved in 25.0g of water. The solution's boiling temperature is 103.25 degrees celsius. What is the molar mass of this molecular compound?
Determine how many grams of aluminum hydroxide will get from 18.2g of aluminum sulfide and determine the density of this newly minted penny
A weak acid with the general formula of HA will react with a base, such as NaOH. Write the neutralization equation which describes the reaction.
The rate constant k for a first order reaction is 1.36 * 10 -3 s -1 at 90 degrees Celcius and the activation energy is 78.4 kJ/mol. What is the rate constant for this reaction at 50 degrees Celcius?
If a minimum energy of 2.00x10^5 J/mol is needed for this process, what is the minimum energy needed from each photon? B. Calculate the wavelength of light necessary to provide photons of this energy
a student collects 31.8 mL of argon gas at a temperature of 21 Celsius and a pressure of 755 mmHg. What is the volume of argon at STP?
If 69.5 kJ of heat is applied to a 1025 g block of metal, the temperature of the metal increases by 11.4°C. Calculate the specific heat capacity of the metal in J/g°C.
How much heat energy, in kilojoules, is required to convert 74.0 g of ice at -18.0 C to water at 25.0 C ?
An unknown gas composed of homonuclear diatomic molecules (its structure is X2) diffuses at a rate that is 1.07 times that of O2 at the same temperature. What is the identity of the unknown gas
Find the Qsp if The solubility product of Ag 2 CO 3 =6.2 × 10-12. Also determine whether a precipitate forms in the solution (Assume 20 dropsper milliliter.)
What is the boiling point of a solution made using 773 g of sucrose, C12H22O11, in 0.275 kg of water,H2O?
Image text transcribed for accessibility: A buffer was prepared by dissolving 0.370 mol of the weak acid HA (Ka = 1.00 times 10-5) plus 0.036 mol of its conjugate base Na+A- in 1.00 L. Find the pH.
Suppose that 28g of each of the following substances is initially at 28.0 degrees celcius. What is the final temperature of each substance upon absorbing 2.45 kJ of heat?
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