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What is the molarity of 175 mL of a solution containing 2.18 g of Na2SO4·10H2O? 0.00377 M B. 0.644 M C. 0.00878 M D. 0.00118 M E. 0.0387 M
What is the concentration of the dilute aspirin? a. What is the concentration of the aspirin in the dilute aspirin solution? b. What is the concentration of the original solution ? C. How many mg of aspirin are present in one tablet of Brand Y asp..
A mixture of Helium, Neon, and Nitrogen gases has a pressure of 1.348 atm. Determine what is the partial pressure of N2 in the mixture If the pressures of Helium and Neon are 0.124 atm and 0.996 atm, respectively.
A particular compound contains, by mass, 41.4g carbon, 3.47g hydrogen, and 55.1g oxygen a 0.100 mol sample of this compound weights 11.60 g.
A hot air balloon is filled with air to a volume of 4.00x10^3 meters cubed at 745 degrees celcius. the air in the ablloon is then heated to 62 degrees celcius, causing the balloon to expand to a volume of 4.20x10^3 meters cubed.
Given that the enthalpy of formation is -277.7 kJ/mol for C2H5OH(l) and -393.5 kJ/mol for CO2(g), find the enthalpy of formation for C6H12O6.
Calculate the enthalpy change per mole for this process. ( Assuming C=4.18 J deg c^-1 g^-1 and density of the final solution is 1.00g/ml).
How many grams of CaH2 are needed to generate 19.0 L of H2 gas if the pressure of H2 is 780. torr at 15 C?
What is the initial concentration (in M) when 17.6 mL of a sodium chloride solution was diluted with 19.4 mL of solvent to a final concentration of 0.708 M? Assume the volumes are additive.
Fundamentals of acids and bases - Water self ionizes to a small extent creating equal concentrations of hydronium and hydroxide ions. Find the molar concentration of these ions in water at 25 o C?
If the propanoate ion comes from strontium propionate, Sr(C3H5O2)2 then how many grams of strontium propanoate are needed? Assume it is completely soluble.
What mass of ice at 0C must be added to 45g of water at 20C to cool it to the final temperature of 10C?
Write balanced net ionic equation for the reactions that take place when the following reagents are mixed together in aqueous solution:
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