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In June 2004, the Cassini-Huygens spacecraft began orbiting Saturn and transmitting images to Earth. The closest distance between Saturn and Earth is 746 million miles. What is the minimum amount of time it takes for the transmitted signals to travel from the spacecraft to Earth?
a 447 cm3 volume of na2co3 solution was warmed with an excess of sulfuric acid until all action ceased. a 5.0 l volume
Calculate the heat that must be supplied to 0.104g of Ne(g) at 0.250 atm to raise its temperature from 22.0 degree Celsius to 60.0 degree Celsius at
The mass of a 150 ml beaker was determined to be 82.123 g. A sand- salt mixture was placed in the beaker and the mass of the beaker plus the mixture was determined to he 86.246 g.
Calculate the following to determine Kc for FeSCN2+. a,) moles Fe3+ initially present. b.) moles SCN- initially present
When all of the products and reactants are gases, the type of equilibrium that will be established is a
The calorimeter contains exactly 321 g of water, and the temperature increases by 1.126°C. Calculate the heat given off by the burning Mg, in kJ/g and in kJ/mol.
Excess dietary fat can be converted to cholesterol in the liver. When palmitate labeled with 14C at every odd-numbered carbon is added to a liver homogenate, where does the label appear in mevalonate
The spectrophotometer is to be set at 447nm. What experiment could you do, what data would you collect
The reaction4 P4 + 5 S8 → 4 P4S10 ,what is the maximum amount of P4S10 which could be formed from 14 g of P4 and 0.133 mol of S8?
Aniline is a weak organic base with the formula C6H5NH2- the anilinium ipn has the formula C6H5NH3+ and its Ka = 2.3 * 10^-5. a) write the chemical reaction showing the hydrolysis of the anilinium ion. b) calculate the pH of a 0.0400 M of aniliniu..
Determine the concentrations of the following ionic species present in a 0.333 M solution of the diprotic acid H2SO3. For H2SO3, Ka1 = 1.4E-2, Ka2 = 6.3E-8.
What volumes of .50 M HNO2 and .50 M NaNO2 must be mixed to prepare 1.00 L of a solution buffered at pH= 3.55? Calculate the pH of solution formed by mixing 100 mL of .100 M NaF and 100 mL of .025 M HCl.
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