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MgNH4PO4.6H2O loses H2O stepwise as it is heated. between 40C and 60C the monohydrate (MgNH4PO4.H2O) is formed and above 100C the anhydrous material (MgNH4PO4) is formed. What are the phosphorus percentage of the monohydrate and anhydrous material?
What is the percent recovery of caffeine from tea leaves in the procedure here? Compare the amount of caffeine isolated to the mass of the tea leaves.
When 20.0 grams of water is cooled from 20.0 Celsius to 10.0 Celsius, the number of Joules of heat released is
Determine how do you find out the new freezing point of a solution if given the formula is Delta T = m x kf x i but how do you find it how does it work?
Calculate the pH of a solution that results from mixing 19.8 mL of 0.120 M acetic acid with 20.0 mL of 0.178 M sodium acetate. The Ka value for CH3COOH is 1.8 x 10-5.
A certain automobile of mass 1635 kg travels on a German autobahn at 157 km·h-1. What is the wavelength of the automobile?
At a certain concentration of reactants the rate of appearance of water in the following reaction is 0.26 M/s.
The value of the euro was recently $1.38 u.s. and the price of 1 liter of gasoline in france is 1.35 euro
calculate how many protons are required to pass through the xeno-FoF1-ATP synthase complex to synthesize one ATP.
What m/z value would you predict for the most stable fragment peak in the mass spectrum of 4-ethylheptane ? a- 85 b-128 c-99 d-113 e- 127
To titrate a 5.00 mL sample of a saturated aqueous solution of sodium oxalate, it requires 25.31 mL of 0.02233 M potassium permanganate. How many grams of sodium oxalate would be present in 250.0 mL of the saturated solution
Considering the balanced chemical equation at the beginning of Section 4.2, why is it incorrect to say that if we burn 2 kg of octane, we would get 16 kg of CO2 as a product
explain in detail why there are exactly 14 elements shown in the Lanthanide series of the periodic table.
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