| Question | Subject | Tutorials |
|---|---|---|
| What size tank would be needed to contain this same amount A 12-liter tank contains helium gas pressurized to 160. What size tank would be needed to contain this same amount of helium at atmospheric pressure 1 ATM.
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Chemistry / General Chemistry | Get it Now |
| Describe how the eight-electron deficiency is eliminated For benzene(C6H6), AE=30 and NE=38. Explain how the eight-electron deficiency is eliminated by the structure of the molecule.
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Chemistry / General Chemistry | Get it Now |
| The solubility of strontium arsenate 10.At a certain temperature, the solubility of strontium arsenate, Sr3(AsO4)2, is 0.0520 g/L. What is the Ksp of this salt at this temperature?
11.The Ksp of magnesium carbonate, MgCO3, is 6.82 &ti … |
Chemistry / General Chemistry | Get it Now |
| Calculate the PH for each of the cases in the titration Question- Calculate the pH for each of the following cases in the titration of 25.0ml of 0.160M pyridine C5H5N(aq) with 0.160M HBr(aq):
1) Before addition of any HBr?
2) After addition of 12.5 m … |
Chemistry / General Chemistry | Get it Now |
| Explain how many micromoles of a- and ha are present A) How many Micromoles of A- and HA are present in the solution?
B) If you now add 3mL of 1M NaOH, will you still have a valid buffer?
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Chemistry / General Chemistry | Get it Now |
| Explain what is the freezing point 1. A solution is made by dissolving 0.586 mol of nonelecrolyte solution in 821 g of benzene. Calculate the freezing point and boiling point of the solution.
2. At -10.00 C, what is the max mass of … |
Chemistry / General Chemistry | Get it Now |
| Explain compounds of boron and hydrogen are remarkable Compounds of boron and hydrogen are remarkable for their unusual bonding and also for their reactivity. With the more reactive halogens, for example, diborane (B2H6) forms trihalides even at low tempe … |
Chemistry / General Chemistry | Get it Now |
| Calculate the concentration of the Zn2 (aq) ion Question- The voltage generated by the zinc concentration cell described by, Zn(s)|Zn2 (aq, 0.100 M)||Zn2 (aq, ? M)|Zn(s) is 14.0 mV at 25 °C. Calculate the concentration of the Zn2 (aq) io … |
Chemistry / General Chemistry | Get it Now |
| Calculate the mass of silver chloride Silver chloride, often used in silver plating, contains 75.27% Ag. Calculate the mass of silver chloride required to plate 225 mg of pure silver.
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Chemistry / General Chemistry | Get it Now |
| Explain ch3nh2 have a nonzero dipole moment
Problem- Which of the following substances would you expect to have a nonzero dipole moment? Select all that apply
A. PCl5
B. CH4
C. XeF2
D. NF3
E. CH3NH2
Please illustrate … |
Chemistry / Biochemistry | Get it Now |
| Define treatment of gold metal with brf3 and kf produces br2
Treatment of gold metal with BrF3 and KF produces Br2 and KAuF4, a salt of gold. Write a balance chemical equation and identify the oxidizing agent and reducing agent in the reaction. Find t … |
Chemistry / Biochemistry | Get it Now |
| Explain solutions by increasing chloride ion molarity
Arrange the following solutions by increasing chloride ion molarity. 1 M NaCl, 1 M FeCl3, 5 M NaCl, 1 M CaCl2, 2 M FeCl3, 2 M CaCl2
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Chemistry / Biochemistry | Get it Now |
| What is the gibbs free energy for the reaction
Question- What is the gibbs free energy for this reaction at 5975K? assume that change in H and change in S do not change with temperature
At what temperature, Teq, do the forward and rev … |
Chemistry / Biochemistry | Get it Now |
| Explain 5-dimethyl-2 and 6-octadiyne chiral
Is 4,5-dimethyl-2,6-octadiyne chiral? f chiral, give the number(s)(from the IUPAC name) of all chirality center(s) present (increasing numberical order, separated by a comma, no space).
& … |
Chemistry / Biochemistry | Get it Now |
| Explain the relative molar amounts of the species
In a 1.0× 10-2 M solution of NH4ClO4(aq), identify the relative molar amounts of these species from Most to Least.
NH4+
NH3
HClO4
H3O+
H2O
OH-
ClO-4
… |
Chemistry / Biochemistry | Get it Now |
| Compute equilibrium be at constants being too high
In a hurry to complete the experiment, Joseph failed to calibrate the spectrophotometer. As a result, all absorbance values for the standard solutions that are measured as well as recorded a … |
Chemistry / Biochemistry | Get it Now |
| Explain the systematic names of the compounds
Give the systematic names of these compounds. Spelling counts! (a) CuI(s) (b) Fe2O3(s) (c) CoF2(s) (d) FeO(s)
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Chemistry / Biochemistry | Get it Now |
| Rank species by their ability to act as an oxidizing agent
Problem- Rank these species by their ability to act as an oxidizing agent. From best oxidizing agent to poorest oxidizing agent. Au3+, Mg2+, Zn2+, Cu+
Express your knowledge to solve the … |
Chemistry / Biochemistry | Get it Now |
| Explain the reaction of propylide ion and 2-chloropropane
What is the name of the product formed by the reaction of propylide ion and 2-chloropropane?
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Chemistry / Biochemistry | Get it Now |
| Explain components most accurately described as cofactors
Are the following components most accurately described as cofactors, coenzymes, or neither? Fe2+, FAD, metal ion, CoQ, Lipase, Biotin
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Chemistry / Biochemistry | Get it Now |
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