How many moles of acetylene (c2h2) will be produced
If 7.00 mol calcium carbide (CaC2) reacts with an excess of water, how many moles of acetylene (C2H2) will be produced?
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A sculptor has prepared a mold for casting a bronze figure. The figure has a volume of 245 mL. If bronze has a density of 7.8 rm {g/mL}, how many ounces of bronze are needed in the preparation of the bronze figure?
The activation energy, Ea, for this reaction is 260 kJ/mol. At 800 K, the rate constant k = 0.0315 s-1. Determine the value of k at 850 K.
Lucite is 71.4% carbon, 9.59% hydrogen, and 19.01% oxygen. What is the empirical formula for Lucite?
A first order reaction has k = 0.440 min-1 and the initial concentration of reactant is 0.840 M. What is the concentration of the reactant after 1.00 minute?
Small samples of oxygen gas needed in the laboratory can be generated by any number of simple chemical reactions, such as 2KClO3(s) 2 KCl(s) + 3 O2(g) According to this balanced chemical equation, how many moles of oxygen gas are produced from the
Consider a molecule with spacing between two energy levels of 0.250 kJ mol-1. Calculate the wavelength and wavenumber of the photon that would be needed to lead to an excitation between these two levels. What part of the electromagnetic spectrum w
A weak acid (HA) is found to ionize 17.8% when mixed at a concentration of 0.3 mol/L. What is the value of Ka for this acid?
What is the appearance of the flame when the air intake is covered? What temperature does the thermometer read as you retrieve it from your drawer?
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