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If 101 g of CaO and 261 g of NH4Cl are mixed, what is the maximum possible yield of NH3?What mass of the excess reactant remains after the maximum amount of ammonia has been formed?
If the mass of the ore from which the gold was extracted is 166.0 g, what percentage of the ore is gold.
Calculate the number of moles of NaHCO3 that reacted in each beaker. (The molar ratio between evolved CO2 and the bicarbonate is 1:1.
Calculate the hydrogen ion concentration for an aqueous solution that has a pH of 3.45.
A buffer having equal amounts of a weak acid and its conjugate base has a pH =4.4. A small amount of sodium hydroxide was combined to this buffer solution .
Compute the number of moles of H2O will be formed from the reaction 75.1g benzene?
Calculate the final temperature of 33 ml of ethanol initially at 20 degrees Celsius upon absorption of 541 J of heat. (density of ethanol =0.789 g/ml)?
what are some difference or similarity in the type of inhibition caused by heat, acid or base and heavy metal ions on enzyme activity.
When solutions of the compound copper (ii) chloride and zinc nitrate are mixed, does the reaction result to form a precipitate, water, gas, or is there no reaction at all.
The percentage natural abundances of 39k and 41k are 93.2581% and 6.7302%, respectively. find out the isotopic mass of 41k.?
A 787 mL gas sample at STP is compressed to a volume of 226 mL, and the temperature is increased to 29?C. What is the new pressure of the gas in Pa.
Consider the following cell: Pt|H2(g, 0.645 atm)|H (aq, ? M)||Ag (aq, 1.00 M)|Ag(s) If the measured cell potential is 1.20 V at 25 °C and the standard reduction potential of the Ag /Ag half-reaction couple is 0.80 V.
Sulfur-38 has an atomic mass of 38.0 and a half-life of 2.87 hours. How long will it take for 99.99% of a sample of sulfur-38 to decay.
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