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How many formula units of Na2SO4are present in a 450 gram sample of the salt?
Why is it particularly important in the experiment "kinetic an thermodynamic control of a reaction" that the semicarbazones be dry before their melting points are determined
Radio waves travel at the speed =3.00 108 m/s(speed of light,). if Saturn is 7.9 108 km from Earth then Determine how many minutes does it take for a radio message to reach Earth from Saturn?
A highly useful and general technique for synthesis of alcohols is the addition of grignard reagents to carbonyl compounds
CH3OH can be synthesized by the following reaction: CO(g)+ 2H2(g)-> Ch3OH(g) What volume of H2 gas (in L), measured at 754 mmHg and 88 C, is required to synthesize 27.6g CH3OH
An investor owns $32,000 of Adobe Systems stock, $34,000 of Dow Chemical, and $44,000 of Office Depot. What are the portfolio weights of each stock?
If 3.20mL of vinegar needs 41.5mL of 0.150 molarity NaOH to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.50qt sample of this vinegar?
The osmotic pressure of a solution formed by dissolving 85.0 mg of aspirin (C9H8O4) in 0.250 L of water at 25 °C is __________ atm.
Write all of the mole-mole factors for each of the following equations: a) 2Al(s)+3Cl2(g)--->2AlCl3(s); b) 4HCl(g)+O2(g)--->2Cl2(g)+2H2O(g).
A gas containing H2S and CO2 is bubbled through methanol at 4 degrees C. From the bottom of the tank to the top, 80% of the H2S is absorbed by the methanol.
You are given 10.00 grams of a mixture of FeO and Fe2O3. Complete reduction of this mixture yields 7.58 grams of pure Fe. Calculate the mass of FeO and Fe2O3 in the original sample.
Question- A power plant using an ideal Rankine power generation cycle operates at an evaporator pressure of 10 MPa with an outlet temperature of 900°C in the evaporator.
5.0 gram sample of kbr at 25 degrees celsius dissolves in 25 ml of water also at 25 degrees celsius. the final
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