12/20/22

Identify the oxidation numbers on all atoms in this reaction. Balance the reaction in acidic solution and basic solution.
SO42−(aq) + Al(s) ® SO32− (g) + Al3+(aq)
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12/16/22

Intro- Chemistry

Calculate either [H3O+] or [OH−] for each of the solutions at 25 °C.
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12/05/22

In a saturated aqueous solution of Ag2CO3 , the silver ion concentration is 2.53×10−4 M and the carbonate ion concentration is 1.27×10−4 M. Calculate the solubility product, 𝐾sp , for Ag2CO3 .
In a saturated aqueous solution of Ag2CO3Ag2⁢CO3, the silver ion concentration is 2.53×10−42.53×10−4 M and the carbonate ion concentration is 1.27×10−41.27×10−4 M. Calculate the solubility... more
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09/13/22

2Al(s) + 3Cl2(g) → 2AlCl3(s)

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07/18/22

Finding Isomers
How many isomers exist for TiF₄(H₂O)₂?
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07/18/22

Solubility and Precipitation
Will KClO4 precipitate when 20 mL of a 0.050-M solution of K+ is added to 80 mL of a 0.50-M solution of ClO4−?ClO4−? (Hint: Use the dilution equation to calculate the concentrations of potassium... more
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07/18/22

equilibrium chem
At a certain temperature, Ke = 8 for the reaction 2NO2(g) NO3(g) + NO(g) If 5.0 mol of NO2(g) were added to a 1.0 L vessel, calculate the equilibrium concentrations of all the compounds.
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07/16/22

What will be the hybridization of a carbon atom that is singly bonded to another carbon while being doubly bonded to an oxygen atom?
Please choose the answer from the following choices below:A. This carbon will have an sp3 hybridizationB. This carbon will have an sp2 hybridizationC. This carbon will have an sp hybridizationD.... more
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06/30/22

After heating, how many grams of the anhydrous compound remained?
One of the hydrates of CoSO4 is cobalt(II) sulfate hexahydrate.A 58.4 gram sample of CoSO4  6 H2O was heated thoroughly in a porcelain crucible, until its weight remained constant. After heating,... more
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06/28/22

How many GRAMS of aluminum sulfite are present in 3.04 moles of this compound? How many MOLES of aluminum sulfite are present in 1.16 grams of this compound?

1. How many GRAMS of aluminum sulfite are present in 3.04 moles of this compound?______ grams.2. How many MOLES of aluminum sulfite are present in 1.16 grams of this compound?______ moles.
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06/27/22

Assuming that the correct molar mass is 32.0, determine the % error in your molecular weight value.
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06/04/22

Chemistry HELP ASAP
In a solution at 25oC, 5.25 g of sodium hydroxide, NaOH(s), is added to enough water to create a solution of 2.10 L. What is the hydronium ion, H3O+(aq), concentration in this solution. Show all... more
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05/09/22

Help answering this question please

If 20.3 mol of Ne gas occupies 151.7 L, how many mol of Ne would occupy 774.4 L under the same temperature and pressure? Record your answer in scientific notation using 3 significant figures.
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05/06/22

Chemistry Homework Help!
Suppose you can transfer the heat -134663.9 kJ with 100% efficiency to 1.00 L of water initially at 25°C. After the heat transfer takes place, what are the state and temperature of the water? (... more
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05/04/22

Chemistry Homework Help Please!
Reacting mixture of 1.000 kg of each of the reagents are used.aluminum copper(ll) oxide equation:2Al + CuO ---> Al2O + Cu what is the limiting reaction and how much remains theoretically... more
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01/29/22

Aspirin is a compound with the molecular formula C9H89O4. what is it's percentage composition?
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01/29/22

One component of a metal sculpture consists of a solid cube with an edge of length 27.3 cm. The alloy used to make the cube has a density of 6990 kg/m3. Find the cube's mass.
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01/24/22

kinetics summary
What three criteria must be met if a reaction between two reactants is to take place?
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01/22/22

filling up p orbitals

a homework question was: when filling up the three p orbitals with electrons, Px has preference. I chose false which was correct, but I wanted clarification. there is no order of x, y, and z for... more
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01/11/22

3 Cu  +   8HNO3 → 3 Cu(NO3)2   +  2 NO  +  4  H2O
3 Cu  +   8HNO3 → 3 Cu(NO3)2   +  2 NO  +  4  H2OIn the above equation, how many grams of water can be made when 14.3 moles of HNO3 are consumed? Round your answer to the nearest tenth. If you... more
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09/20/21

How many C atoms are in 639 mol of sucrose?
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09/20/21

Net Ionic Equation
1.Full Equation: NH4Cl (aq) + NaOH (aq) ----> NaCl (aq) + NH4NO3 Full Ionic Equation: N3- + H4+ + Cl- + Na+ +OH- ----> Na+ + Cl- +N3- + H4- + NO3- Net Ionic Equation: OH- ---->... more
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09/14/21

What are the partial pressures of all substances involved in the reaction when it comes to equilibrium?
At a temperature below room temperature but with all of the substances still in the gas phase, the equilibrium constant Kp for the decomposition of iodine monochloride (ICl) into I2 and Cl2 is 1.40... more
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09/13/21

Can you help me with Chemistry

The average body temperature of an adult in good health is 98.6 F.Convert this temperature to degrees Celsius. Round your answer to 3 significant digits.
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09/09/21

How do you form a compound given the atomic number?
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