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An aqueous solution is 22.0% by mass silver nitrate, AgNO3, and has a density of 1.22 g/mL. What is the molarity of silver nitrate in the solution?
What is the ratio of the rate constants for this reaction when the temperature is decreased from °C to °C?
Write a mathematical equations that show how you will calculate the detected activity from the count rate due to background radiation and the sample of KCl
for each formula unit of sodium decahydrate: Na2SO4 * 10H2O, a) how many atoms of each kind are present? B) how many water molecules would be liberated for every molecule of the hydrate that is decomposed by heating?
A 12-gram mixture of methane, CH4, and ethane, C2H6, is completely combusted in oxygen. If the total mass of H2O produced is 23.4 grams, what was the approximate mass of the methane in the original mixture?
Assuming no change in volume, How much will the pH of the Acetic acid change? How much will the percent ionization of the acetic acid change
An aliquot of 14.045 grams of this solution is titrated with 0.1043 M hydrochloric acid (HCl.) and it required hydrochloric acid (HCl solution) of 29.18 mL to reach the methyl red endpoint. Compute the weight % Ammonia (NH3) in the aqueous waste.
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 compound equals the moles of anhydrous compound)
a 1.150g of the hydrated salt ZnSO4. XH2O is dissolved in water and the sulfate ion is precipitated by adding an excess of BaCl2 solution. The mass of Pure and Dry BaSO4 precipitated obtained is 0.9335g. What is the formula of the zinc sulfate hyd..
A compound is 40.0%C, 6.70%H, and 53.3%O by mass. Assume that we have a 100.g sample of this compound. What are the subscripts in the empirical formula of this compound?
Aspirin (acetylsalicylic acid) is a weak monoprotic acid. To determine its acid-dissociation constant, a student dissolved 2.00 g of aspirin in 0.600 L of water and measured the ph . What was the ka value calculated by the student if the ph of the..
5.0 g of H2O at 23.0 oC is added to 100.0 g of H2O at 67.5 oC. What is the temperature of the resulting mixture
A mixture of carbon and sulfur has a mass of 9.0g . Complete combustion with excess O2 gives 23.0g of a mixture of CO2and SO2. Find the mass of sulfur in the original mixture.
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