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If 0.765g of an unknown gas is collected at 741 torr (corrected) and 95C in a 245 ml container calculate the molecular weight of this unknown gas?
A student wanted to determine the molar concentration of acetic acid in a commercial vinegar sample. He used a volumetric pipet to deliver 3.00 mL of vinegar to an Erlenmeyer flask, added about 30 mL of water and 3 drops of phenolphthalein indicat..
A compound has the empirical formula CH2O. When 0.0866g is dissolved in 1.000g of ether, the solution's boiling point is 36.5 degrees C. Determine the molecular formula of this substance.
Mass of sodium acetate: 3.472 g pH of Original buffer solution: 4.72 ph of buffer + 6 M HCl: 3.99 ph Buffer + 6 M NaOH: 5.23 And I need help showing calculations on pH of buffer solution, buffer + HCl, and buffer + NaOH
Write balance equation for dissolution reactions and the corresponding solubility product expressions for each of the following solids
Determine the element of lowest atomic number that contains a complete d subshell in the ground state. element symbol
Write a chemical equation for LiOH(aq) showing how it is an acid or a base according to the Arrhenius definition.
a what temperature change would you expect in which 50.0 ml of 2.0m hcl is combined with 80.0 ml of 2.0 m naoh in
despite the expected decrease in atomic size there is an unexpected drop in the first ionization energy between groups
How much energy (in J) is required to change the temperature of 1.00 kg Fe from 25.0°C to 1515°C? The specific heat capacity of iron is 0.449 J/g*°C.
This compound sloly isomerizes completely to compund B, which has the same formula, Sketch the structures of A and B, and explain why B might be more stable than A
Calculate the pH of the solution formed by the addition of 55.5 mL of 0.100 M NaOH to 49.2 mL of 0.100 M H3PO4.
How much energy is required to vaporize 98.6 g of ethanol (C2H5OH) at its boiling point, if its ΔHvap is 40.5 kJ/mol?
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