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Produce a buffer solution that has a pH of 5.32. You already have a solution that contains 10 \rm mmol (millimoles) of acetic acid. How many millimoles of acetate (the conjugate base of acetic acid) will you need to add to this solution? The \rm p{\it K}_{\rm a} of acetic acid is 4.74.
Calculate the percent water: mass of water lost / mass of hydrated salt x 100%. E. Write the empirical formula for hydrated alum, based on your experiment.
Zinc chloride (ZnCl2) is 52.02% chlorine by mass. What mass of chlorine is contained in 65.0 g of ZnCl2?Answer in units of g.How many moles of Cl is this?Answer in units of mol.
When 2-bromopropane reacts with ethoxide ion, two products are formed; one is the product of Sn2 substitution and the other is the product of E2 elimination.
Determine the mass of sodium phosphate that yields 1.00 g of calcium phosphate precipitate.
What volume of .250 M NaOH is required to neutralize a 10mL sample of .750 M HCl.
C2H4 Flows into a catalytic reactor at 25atm and 300 degrees C with a flow rate of 1010 L/min. Hydrogen at 25atm and 300 degrees C with a flow rate of 1050L/min. If 11.0kg of C2H6 are collected per minute, what's the percent yield of the reaction?
A 45.5 g sample of copper at 99.8 degrees celsius is dropped into a beaker containing 152 g of water at 18.5 degrees celsius. What is the final temperature when thermal equilibrium is reached?
What is the maximum number of liters of Fe2O3(s) that can be made from 11.53 L of O2(g) and 16.07 L of FeS(s) at STP?
The density of benzene at 25.0 degrees C is 0.879g/cm3. What is the volume in liters of 2.5 kg benzene?
Give the number of atoms of the specified element in a formula unit of each of the following compounds, and calculate the molecular (formula) mass
how many grams of lead chromate form when a 1.00g sample of Pb(NO3)2 is added to 25.0 mL of 1.00 M K2CrO4 solution
Zn (s) + 2HCl (liq) -> H2 (g) + ZnCl2 (s), How many moles of ZnCl2 form when 6.3 mol of Zn reacts?
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