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An empty test-tube has a mass of 22.60 g. Some hydrated nickel(II) sulfate was placed in the tube; the total mass was now 33.20 g. After heating, the mass of the tube and anhydrous nickel(II) sulfate was 28.84 g.
Determine the complete formula for hydrated nickel(II) sulfate and its proper name. (show all steps)
How many grams of the element nickel are contained in 10.0 g of a 10.2 wt % solution of nickel sulfate hexahydrate, NiSO4 . 6H2O (FM 262.85)?
Explain why it takes longer time when anyone cook an egg in boiling water while camping at in elevation of 0.5km in the mountain than it does it home.
Describe the development of the modern periodic table. Include contributions made by Lavoisier, Newlands, Mendeleev, and Moseley.
Determine the mole fraction of HO2CCH2CHOHCO2H in this solution?
How many grams of oxygen would be required in the combustion of propane to produce 582 kJ of heat?
.134 mole of KCl and .212 mole of CaCl2 were dissolved in water, calculate total number of Cl ions in the solution
In a second 50.00mL aliquot, the ClO4- was reduced to Cl- with V2(SO4)3. Titration of the reduced sample required 40.12mL of the AgNO3 solution. Calculate the %KCl and %KClO4 in the sample
Calculate the partial pressure of each gas in the container. Express the pressure values numerically in atmospheres, separated by commas.
An automobile has a wavelength that is not measurable by human standards. If the car has a mass of 4000 lbs (1.81 x 103 kg) and travels at 60 miles/hr (26.8 m/s), calculate the wavelength of the car.
if a raindrop weighs 65 mg on average and 5.1x10^5 raindrops fall on a lawn every minute what mass in kg of rain falls in 1.5 hours
Which statement about alcohols is not correct?
Calculate the average molecular weight of a gaseous mixture with the following composition on a mole % basis: CH4= 30%, H2= 10% and N2= 60%.
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