01/13/19

what is the number of moles for 107.5g of iron 2 chlorate?
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01/13/19

What is the molar mass of phosphorous chloride?
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01/13/19

A 260-kg tree that is 10m tall and 25cm in diameter falls into a river. Explain mathematically why the tree floats,given that the density of water is 1000kg/m3
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01/13/19

Ella has 0.5 lbs of sugar. How much water should she add to make the following concentrations? Tell Ella how much syrup she will have in each case. 50% syrup?
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01/12/19

how many moles of oxygen would react with 4 mol C4H10
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01/12/19

A 25.0g sample of an unknown substance was burned in excess oxygen to produce 47.8 grams of carbon dioxide and 29.3 grams of water. What is the empirical formula?
Need help ASAP pleassssssseeeeeeee
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01/12/19

If you are runnning the following chemical reaction: 4NH3 + 5O2 > 4NO + 6H2O. If I want to make 18.0grams of water, how much NH3 do I need?
Need help quick!!!! I don’t know what I’m doing!!!!!!!!!!!
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01/11/19

What is the mass of 27.4 L of carbon dioxide gas with a temperature of 30.0 degree Celsius and a pressure of 119 Kpa

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01/11/19

Determine the total heat energy added to the 100g of ice at -5.9 degrees Celsius to convert it to steam at 108.2 degrees Celsius

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01/11/19

how do you find the mass of hydrogen when yo know the volue is 36?
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01/10/19

If the temperature of 34.4 g of ethanol increases from 25 to 78.8, how much has been absorbed by the ethanol?
The specific heat of ethanol is 2.44.
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01/09/19

Where would the hydrogen bond would form between water and acetone?
the carbon atom in acetone and one of the hydrogen atoms in water. one of the hydrogen atoms in acetone and the oxygen atom in water. the oxygen atom in acetone and one of the hydrogen atoms in... more
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01/09/19

Which pair of molecules is most likely to be miscible (i.e., each soluble in the other)?
Amino acid and methanol. Water and methanol. Methanol and octane. Amino acid and octane. Octane and water.
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01/09/19

Chemistry stoichiometry help please!
determine the concentration of a solution of phosphoric acid if 25mL of the phosphoric acid requires 28.7mL of 0.125mol/L calcium hydroxide for complete neutralization.
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01/09/19

stoichiometry mass to mass

Liquid nitroglycerin, a very powerful explosive, has the formula C3H5(NO3)3. It is unstable and decomposes to form carbon dioxide, nitrogen, water, and oxygen. a. Write the balanced chemical... more
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01/08/19

Balancing equations?
Nitrogen dioxide and water react to form nitric acid and nitrogen monoxide. Translate the chemical names and write the unbalanced, skeletal equation. Write the overall balanced chemical... more
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01/08/19

Chemistry ASA Lab
I have to do a titration of ASA using NaOH but I also need to find an alternative method that is easy enough to do in my grade 11 class.
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01/07/19

Consider a mixture of air and gasoline vapor in a cylinder with a piston.

The original volume is 50. cm3. If the combustion of this mixture releases 1077. J of energy, to what volume will the gases expand against a constant pressure of 655. torr if all the energy of... more
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01/07/19

What is the amount of HA required to react with 0.02252 moles of NaOH?
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01/03/19

How to write an overall redox reaction in a neutral solution?

The half reactions are:reduction: MnO42- + 2H20 = MnO2(s) + 4OH-oxidation: SO32- +H20 = SO42- + 2H+ + 2e-Write an overall redox reaction in a neutral solution.
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01/02/19

chemistry- writing formulas
What is the IUPAC name for the following?              CH3                │              CH2-CH2-CH2-CH3A) 1-methylbutaneB) 4-methylbutaneC) pentaneD) butaneE) hexane
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01/02/19

how to distinguish whether molecule is a giant ionic or covalent bond or just a simple molecular structure?
There is a question about the bonding btw 1.(fluorine and magnesium) 2.(fluorine and bromine). I don't know how to distinguish the three bonding.
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01/02/19

0.2640 g of sodium oxalate are dissolved in a flask and titrated with 30.75 ml of potassium permanganate till pink endpoint.
How many moles of sodium oxalate are present in the flask?How many moles of potassium permanganate have been titrated into flask to reach endpoint?Molarity of potassium permanganate?
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01/01/19

What is 33% of $40,000.00
What is 33% of $40,000.00
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01/01/19

word problem Problem Page A washer and a dryer cost 821 combined. The washer costs 79 less than the dryer. What is the cost of the dryer
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