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Calculate the volume of 0.0496 M EDTA needed to titrate the Mg2+ in a 0.1959-g sample that is 80.2 percent hydromagnesite, 3MgCO3 · Mg(OH)2 · 3H2O. The formula weight of hydromagnesite is 365.3 g/mol.
dr. browns new house will need to use propane c3h8 gas to fuel the range because natural gas service is not available
How many grams of sodium azide are needed to fill a 30*30*25cm bag to a pressure of 1.30atm at 21.0C?2NaN3=3Na+2N2
a 0.20 solution of is used to titrate 28.0 of a solution of unknown concentration. if 160ml of hcl is required what is
Often reactions of tertiary alcohols or tertiary alkyl halides result in elimination reactions and not substitution reactions
The solubility of AlF3 is 6.7 gms. of AlF3 per liter of solution. the density of a saturated AlF3 solution is 1grm per ml. the Ksp of AlF3 is
How much KOH (in grams) is required to neutralize a sample of 125mL of 0.5N HCl that has just been added to 875mL of distilled water
If a 34.32 ml solution with a pH of 1.21 was mixed with a 1.0000 gallon solution of 0.00010000 M NaOH, what would be the final pH and how many grams of each product would be formed
She pours a 50.0 mL sample of water at 345 K into the calorimeter containing a 50.0 mL sample of water at 298 K. She carefully records the final temperature of the water as 317 K. What is the value of Ccal for the calorimeter?
If the methane contained in 4.00 L of a saturated solution at 25 C was extracted and placed under STP conditions, what volume would it occupy?
IF a black precipitate remaining from the separation of Cr3+ as well as Fe2+ ions from Ni2+ ion is dissolved in HCl and HNO3. A few NH3 is added, followed by several drops of dimethylglyoxime. (1) Explain a colorless solution results.
A 6.55mg/L solution of benzoic acid has an absorbance value of 0.621 at 230 nm in a 1.00cm cell. in units of M^-1*cm^-1, what is the molar absorptivity of benzoic acid at 230nm?
n basic solution it gives ClO3- and ClO2- ions. 2ClO2(aq) + 2OH-(aq) ? ClO3-(aq) + ClO2- (aq) + H2O. To obtain the rate law for this reaction, the following experiments were run and, for each, the initial rate of the reaction of ClO2
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