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A mass of mercury occupies 0.750 L. What volume would an equal mass of ethanol occupy? The density of mercury is > and the density of ethanol is 0.789 g/mL.
the pH of a saturated solution of a metal hydroxide MOH is 10.85 calculate the Ksp for the compound
What is the molarity of each ion in a solution prepared by dissolving 0.550 g of Na2SO4, 1.192 g of Na3PO4, and 0.228 g of Li2SO4 in water and diluting to a volume of 100.00mL?
How many moles is a cube of gold with sides of 2.364 cm? Density of gold is 19.30 g/mL What is the atomic mass of gold?what is the name of the commom laboratory equipment.
A packed tower is used to purify a gas containing 4 mole % of H2S. The total inlet gas flow to the tower is 75 kmol/h and the total inlet pure solvent flow to be used to absorb the H2S is 95 kmol /h.
Draw the Lewis structure for the PO4-3 ion, indicating any resonance forms. On the basis of electron configurations, predict the formula of the Type I ionic compound formed from the elements Z=49 and Z=51.
How many grams of magnesium chloride, MgCl2, would be required to prepare a 0.2019 m MgCl2 solution by combining this compound with 0.2050 L of water (assume a density of 1.00 g/mL)?
Calculate the maximum amount of CO2 that can be produced when 64.0 g of O2 and 64.0 g of CH3 OH are mixed for the reaction 2 CH3OH + 3 O2 → 2 CO2 + 4 H2 O .
A 59.0-g sample of an alloy at 93.0°C is placed into 264 g of water at 22.0°C in an insulated coffee cup. Assume that no heat is absorbed by the cup.
How many moles of MgCl2 are present in 50.0 mL of 0.800 M MgCl2 solution?
Determine the freezing point of a solution which contains 0.31 mol of sucrose in 175 g of water. Kf = 1.86°C/m
Calculate the number of grams of sulfuric acid in 0.520 of battery acid if the solution has a density of 1.35 and is 37.4 sulfuric acid by mass.
What is the value of x in the formula for the hydrate? hint: remember that x represents the ratio of moles of H2O to moles of hydrate compound, and that moles of hydrate
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