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how many atoms of hydrogen are contained in 35 molecules are butric acid?
An unknown solid compound containing Pb2+ ion was mixed with 15 mL of 2.0 M HNO3. The mixture bubbled profusely. After complete reaction, it was found that 0.020 moles of CO2 were produced and the original solid was completely consumed.
What is the net ionic equation for the following redox reation in basic solution? CrO4{2-} oxidizesHSnO3{-} and reduces to CRO2{-}
A sample of nitrogen gas is contained in a piston with a freely moving cylinder. At0?C, the volume of the gas is 248 mL. To what temperature must the gas be heated to occupy a volume of 479mL.
Make sure that the final answer is expressed in the correct number of significant figures.
C2H5OH (l) + 3O2(g) ---------> 2CO2(g) + 3H2O(l) ?H = - 1.37 x 103 kJ When a 24.8-g sample of ethyl alcohol (molar mass = 46.07 g/mol) is burned, how much energy is released as heat?
suppose you want to find out how many milliliters of 1.0 M AgNO3 are needed to provide 169.9g of pure AgNO3.
Use the stoichimetery of the equation and the dilute titanium 4 chloride solution for the following: How many moles of solid product can be formed?
Solid silicon and solid magnesium chloride forms when silison tetrachloride gas reacts with magnesium metal.
What is the molecular formula of the compound with empirical; formula C5H8O and molar mass 336.5 g mol-1?
What is the theoretical mass of xenon tetrafluoride that should form when 130 g of xenon is reacted with 100 g of F2? What is the percent yield if only 145 g of XeF4 is actually isolated?
How many grams of NaNO2 form when 429 g NaNO3 react? The yield is 90.%.
calculate the gasphase proton affinity of NH3. The lattice energy of NH4Cl may be estimated from Kapustinskii's formula using rN-Cl = 3.50 Å.
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