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How many grams of carbon dioxide are produced from the combustion of 250. g of ethane,C3H8,in the reaction C3H8+5O2->3CO2+4H2O?
In the reaction 2Na+2H2O->2NaOH+H2, how many grams of hydrogen are produced if 120. g of Na and 80.0 g of H2O are available?
calculate the percent yield for the reaction CH4+2o2-> 2h2o+co2 when 1000. g of CH4 react with excess O2 to produce 2300. g of CO2.
how many moles of potassium chloride are produced from 119 g of potassium bromide?
how many grams of potassium chloride can be produced from 300. g each of cl2 and KBr?
What is the pecent yield if 200. g of CL2 react with an excesss of KBr to produce 410. g of Br2?
Balance the following equations
AgNO3+CuCL2->AgCL+Cu(NO3)2PbO2->PbO+O2Zn(OH)2+CH3COOH->Zn(CH3COO)2+H2O
What is meant by a state of ‘dynamic equilibrium'? What happens to the concentration of reactants and products when a reaction reaches a state of dynamic equilibrium?
Methane is burned in a Laboratory Bunsen burner to give CO2 and water vapor. Methane gas is supplied to the burner at the rate of 5.0 L/ min ( at temperature of 28° C and a pressure of 773 mm Hg).
If insulin were treated with mercaptoethanol to break its disulfide bonds, and then the mercaptoethanol were removed so that disulfide bonds could re-form, how many different wyas could the two polypeptide chains become linked to each other (assum..
The rate constant for a first-order reaction is 5.50 x 10-4 s-1 at 39oC and 2.32 x 10-3 s-1 at 56oC. What is the activation energy
What is the strongest Bronsted-Lowry acid in the chemical reaction shown below. 2 HNO3 (aq) + Ba(OH)2 (aq) ---> Ba(NO3)2 (aq) + 2 H2O (l) a) HNO3 b) Ba(OH)2 c) Ba(NO3)2 d) H2O
Consider a diploid cell that contains three pairs of chromosomes designated AA, BB, and CC. Each pair includes a maternal and a paternal member (e.g., A^m and A^p.).
what is steam distillation and why is it a preferred technique to purify high boiling liquids that are water-insoluble
Calculate the lattice energy for the hypothetical ionic compound M2X from the information given below. IE1(M) = 424 kJ/mol M(s) => M(g) ?Ho = 84.3 kJ/mol ?Hof(M2X) = -888.3 kJ/mol X2(g) => 2X(g) ?H = 231 kJ EA1+EA2 (X) = 476 kJ/mol IE1 (X) = 271 k..
State the chemical composition of the sterol that is present in high levels in most people who belong to the high-risk group. Distinguish between the 'good' and 'bad' forms of this sterol.
Calculate the kinetic energy of 2 kg of helium gas at 25 C. If this energy could be captured and used to accelerate a 1400.0 kg automobile, how fast would the car travel on a flat surface (ignoring friction)
The most prominent line in the spectrum of Neon is found at 865.438 nm. Other lines are found at 837.761 nm, 878.062 nm, 873.375 nm, and 1885.387 nm.
write balanced chemical equation and determine the molecular weight of the reactants.1.within the cylinders of a cars
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