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Explain the hydrate of sodium carbonate contains 62.9% water by mass. Utilize this value to verify the chemical formula of the hydrate of sodium carbonate. Presume a 100.0 gram basis
how many grams of sulfur are needed to react completely with 246 g of mercury to form HgS
Write the balanced half-reaction ocurring at the cathode. What would the potential of the cell if it was modified to use 0.10M AgNO3 solution and a 0.30M Cd(NO)3 solution instead
If a sample containing 3.00 mL of nitroglycerine (density = 1.592 g/mL) is detonated, how many total moles of gas are produced?
Assuming that the appropriate volumetric flasks are available, describe how we would make these solutions: (a)175 mL of a 1.14 M solution of NH4Br in water (b)1.35 L of a 0.825 M solution of NaI in water
a metal object with a mass of 19g is heated to 96 degrees c then transferred to a calorimeter containing 75 g of water
Which best describes a solid?
55.0 mL of a 1.70 M solution is diluted to a volume of 278 mL. A 139 mL portion of that solution is diluted using 175 mL of water. What is the final concentration
Write Lewis structures, including resonance structure and formal charges if necessary
What can we say about the temperature change of a sample of water when the value of q is negative
10.0 moles of nh3 and 10.0 moles of h2 are introduced into a 2.00 l flask. at equilibrium 3.0 moles of nh3 gas remain.
Describe the role of biotin in the gluconeogenic pathway. What effect would biotin deficiency have on a person, and how might you overcome or avoid that effect?
A typical ethanol fuel (molar mass 46.07 g/mol) has an enthalpy of combustion of -1364 kJ/mol and 1 dm^3 has a mass of 0.77kg. Calculate the maximum amout of work that could be performed by the combustion of 10dm^3 of fuel.
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