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If it requires 70.0 L of gas to fill the air-bag, how many grams of NaN3 must be in gas generant mixture to produce this amount of gas at STP?
Iron is produced by heating iron(III) oxide with carbon (in form of coke) to give iron and carbon dioxide. Calculate the mass of coke needed to react completely with 1kg iron(III) oxide?
write the formula of the conjugate acid for each of the following bases: a)SO4^2- b)CN^- c)CH3-CH2-COO^- d)ClO2^- e)HS^-
Isopentyl acetate, a molecule composed of C, H, and O, smells like bananas. Combustion analysis of 1.750 grams of this molecule yields 1.695 g H2O and 4.142 g CO2. What is the simplest formula for isopentyl acetate
which of the following statements about writing molecular complete and net ionic equations is false a net ionic
Osmosis is the process responsible for carrying nutrients and water from groundwater supplies to the upper parts of trees. The osmotic pressures required for this process can be as high as 20.1 atm
When a sample of vanillin weighing 2.500g burns in oxygen, 5.79g of CO2 and 1.18g of h20 are obtained. What is the empirical formula of vanillin
Sodium carbonate reacts with hydrochloric acid as shown below in an unbalanced chemical equation. What mass of CO2 is produced from the reaction of 2.94g Na2CO3 with excess HCL
Nitrogen gas when combined with hydrogen gas forms ammonia gas according to the following equation N2(g) + 3H2(g) = 2NH3(g). Delta H(rxn)=-56 kJ. The delta H(rxn) was determined using Hess's Law and the following three related reactions:
A boy receives 10mg of medicine for every kg he weighs. How much medicine should he receive if he weighs 48 pounds and the conversion factor for pounds to kilograms is 1 pound = 0.4536kg.
Question- If a reaction has the same rate constant, what time does it take for a reactant to decrease by 5% that is, still near the beginning of the reaction process if the kinetics is zeroth-order, first-order, and second-order with respect to th..
Type the half-cell reaction that takes place at the cathode for the iron-silver voltaic cell. Indicate physical states using the abbreviation (s), (l), or (g) for solid, liquid, or gas, respectively. Use (aq) for an aqueous solution. Do not forget..
How many grams of methane must be combusted to heat 1.15 of water from 26.0 to 89.0, assuming as a product and 100% efficiency in heat transfer
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