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Radio waves travel at the speed =3.00 108 m/s(speed of light,). if Saturn is 7.9 108 km from Earth thenDetermine how many minutes does it take for a radio message to reach Earth from Saturn?
Benzyl ethyl ether reacts with concentrated aqueous HI to form two initial organic products (A and B).
Which of the following mixtures has the lower pH. A) Equal volumes of 0.10M HClO4 and 0.10M NaOH. B) Equal volumes of 0.10M HClO4 and 0.10M NH3.
If a solution is made of naphthalene in heptane and has a vapor pressure of 82 torr, what is the mole fraction of naphthalene? Assume ideal solution behavior.
If .40 mol of H2 and .15 mol of O2 were to react as completely as possible to produce H2O what mass of reactant remains?
Given the reaction by the equation Mg + 2HCL yeilds H2 + MgCl2, determine to two decimal places the molar masses of all substances involved.
A gaseous fuel mixture stored at 751mmHg and 298K contains only methane (CH4) and propane (C3H8) . When 12.3L of this fuel mixture is burned, it produces 772kJ of heat. What is the mole fraction of methane in the mixture
Standard reduction potentials for the Pb2+/Pb and Cd2+/Cd haf-reactinos are -.13V and -.40C, respectively. At what relative concentrations of Pb2+ and Cd2+ will these half-reactions have the same reduction potential?
125 mole of oxygen gas is added to carbon in a .25L container. The mixture equilibriates at 500K. Calculate the equilibrium concentration of carbon monoxide, knowing that K=.086 at 500K.
N2 + 3H2 --> 2NH3 what volume of hydrogen is necessary to react with five liters of nitrogen to produce ammonia?
Explain how to draw NMR structures for compounds that meet these descriptions: a. C2H60; one singlet b. C3H7Cl; one doublet and one septet c. C4H8Cl20; two triplets d. C4H8O2; one singlet, one triplet, and one quartet Any help would be greatly app..
What mass of CaCl2 , when dissolved in 100.00 g of water, gives an expected freezing point of 5.0°C; CaCl2 is ionic? What mass of glucose would give the same result?
An electric power station annually burns 3.6 107 kg of coal containing 2.4 percent sulfur by mass. Calculate the volume of SO2 emitted at STP
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