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Antimony reacts with sulfur according to the following reaction:
2Sb(s) + 3S(s) → Sb2S3(s)
What is the mass percent yield from 2.35 g of Sb in excess S, if 1.16 g of Sb2S3is obtained?
Sb2S3is 340. g/mol
How many grams of the solid can be formed from 286 grams of calcium nitrate and 136 grams of Phosphoric acid?
how many grams of nitrogen monoxide are produced when copper metal reacts with nitric acid to form water and 5.92 g of
the most common source of copper is the mineral chalcopyrite. how many kilograms of chalcopyrite must be mined to
A, B, C, D are all pure crystalline compounds with melting points of 110?C - 111?C. A mixture of compounds A and C melts at 110?C-111?C. A mixture of A and D melts at 95?C-105?C. Which of the following is correct
the rate constant for a particular second-order reaction 0.47 m-1s-1 the initial concentration of reactant 0.25 moll
The bond length of KF is 269.00 pm. What would be the dipole moment, in D, of this compound by assuming a completely ionic bond? Remember e = 1.60x10^-19 C; 1 D = 3.34x10^-30 C*m.
WHat are the boiling points and freezing point of a 2.97m solution of naphtalene in benzene. ( the boiling point and freezing point of benzene are 80.1 C and 5.5 C, respectively)
What is the molarity of a NaOH solution if 48.0 mL of a 0.220 M H2SO4 solution is required to neutralize a 25.0-mL sample of the NaOH solution
What partial pressure of nitrogen gas is required in order for 0.00189 g of the gas to dissolve in 12.4 mL of pure water? The Henry's law constant for nitrogen gas is 6.1 × 10-4 M atm-1
Problem- In a qualitative analysis procedure, a chemist adds HCl to an unknown group of ions and then saturates the solution with H2S so that the solution is 0.2 M in HCl and 0.10 M in H2S. (a) What is the [HS -] of the solution
Assume you have a jar of pulverized rock to test. Create a detailed 4-step procedure describing how you expect to go about doing this.
Describe the two methods for determing the volume of the vapor In a Molar Mass of a Volatile Liquid experiment? Which method is likely to give more precise results? Why?
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