chemistry! URGENT

60,827 results, page 44

chemistry

in balancing I3- --- I- + IO3- wat is reduced to what

chemistry

If 30.0 mL of 4.8 10-2 M HBr is added to 21.5 mL of 3.6 10-2 M NaOH, what is the pH of the solution?

chemistry

What is the pH of a .10M (CH3)3N solution? Kb=6.40e-5

chemistry

How do you make a 100mL solution of 1.50 M of NaCl.

Chemistry

How do you solve for the experimental pKa when doing a titration?

chemistry

convert 353 torr to atm

Chemistry

Will or will no accor this reaction? Na + Al2(SO4)3

Chemistry

SO3, CaCO3, Ag2S, and Zn(OH)2. Is this right?

chemistry

how to write a mass blanc of cacl2

Chemistry

Why can't benzene dissolve sodium chloride?

chemistry

what does the arrow in a chemical equation mean?

chemistry

does a solution have to involve a liquid?

Chemistry

what are the products of the reaction? Cu3PO4 + HCl =

Chemistry

what are the products of the reaction? Cu3PO4 + HCl =

chemistry

what volume of O2 at STP is needed to react with 4.52 g of K

Chemistry

How many moles of potassium chromate were in 15 mL of K2CrO4?

Chemistry

How many grams of potassium chromate are in K2CrO4?

Chemistry

What was the molarity of K2CrO4? M = moles/liter

Chemistry

What is the pH of a 0.001 M formic acid solution? Ka = 1.8 x 10^-4. I don't know what to do!

chemistry

What is the mass of 1 mL of water at 4 deg Celsius?

Chemistry

What is the structural formula for 1-bromo-3,4-dimethylheptane

chemistry

How many total atoms are in 1.0 moles of H2O ?

chemistry

Find the molar mass of AlCl3

chemistry

How many moles are represented by 16.0g of ethanol, C2H5OH?

chemistry

Find the molar mass of Hg2Cl2

chemistry

what is the molar mass of the copper oxide?

chemistry

what is the explanation of the pure acetic acid?

chemistry

what is the explanation of 0.01M acetic acid ?

chemistry

Why are optical isomers not found for CH2ClBr?

chemistry

Why are optical isomers not found for CH2ClBr?

Chemistry

How do you find the density of Uranium Hexafloride?

chemistry

how many atoms are contained in 12g of H2O2 ?

chemistry

how many moles of Ba(OH)2 are present in 225ml of 0.400 Ba(OH)2

chemistry

mole ratio of (CaSO4)2.H2O

chemistry

mole ratio of CaSO4.2H2O

Chemistry

mole ratio of Na2SO4.10H2O

chemistry

what product will form from dehydration of 2-methylcyclohexanol?

chemistry

for oxidation number of Fe(CO)5 I don't understand why Fe is zero

chemistry

what is the symbol for extreme temperature in lab

Chemistry

What is the difference between inference and observation?

chemistry

How can you tell if an acid is ionic or covalent?

Chemistry

Please explain the process of diffusion.

chemistry

28.66ml(.7857 g/cm cubed)= meters

Chemistry

why is MgCI salt likely to not exist?

Chemistry

1.25 x10^-5g/ 0.75 moles = Not sure what the ^ stands for

chemistry

oxidation state of nitrogen in n2h4

chemistry

oxidation state of nitrogen. no2-

chemistry

wat are the main uses of aluminium

chemistry

what is the density of 700 ml of a gas that has a mass of 7 g?

chemistry

How are absorbance and transmission spectra related?

chemistry

What happens to p- toluidine at 225 degres?

Chemistry 11

Which is reactant and product ? 1) C(s)+O2(g)--> CO2 (g) 2) N2(g)+ O2(g) --> 2NO(g)

chemistry

how many significant figures does 221.5 have

chemistry

how many CO molecules do you need to react with water

chemistry

number of mole in 850.5g of zinc

Chemistry

Why does beta radiation take place?

Chemistry

What happens to the beta particle when stopped

ap chemistry

What is the molar mass of glucose, C6H12O6?

chemistry

How do basic and acidic buffers resist pH ?

Chemistry

How do I find the radius of a sulfide ion?

chemistry

How are sugars stored in onions and potatoes?

chemistry

what happen when HS + NO2 +O2 + H2O + BaCl?

chemistry

how many significant figures are there in this measure: 1.000 30

Chemistry

What is the corresponding EM wave for: a) 274nm b) 71nm?

chemistry

explain what is meant by the scientific method

Chemistry

What is the chemical equation for white flour? Thanks!

Chemistry

How can the absorptivity of alumina be varied? Thank you all:)

chemistry

Balance acidic equation PbO2 and Pb

Chemistry

What is the precipitate of K2CrO4 + Al2(SO4)3 ?

chemistry

how do empirical and molecular formulas differ

chemistry

Determine the mass in grams of 2.56*10^24 atoms in Li

Chemistry

Is CaCl2 a solid or is it soluble? I know Ca is is insoluble...

Chemistry

How would I determine the electronegativity of Ethanol?

Chemistry

Is CaCl2 a solid or is it soluble? I know Ca is is insoluble...

chemistry

what is the normality of a. above if the density of the solution is 1.02 g/mL

chemistry

What is the frequency of a photon resulting from the transition of n = 7 ¨ n = 1 ?

Chemistry

Is butyl paraben light sensitive?

chemistry

what is the experimental percent of sulfate in alum?

chemistry

how many C atoms are in 1.50 moles of lactic acid?

chemistry

the weight and charge of and electron is respectively o and -1 1 and 0 1 and -1 0 and +1

chemistry

is CO2 a single atom or molecules?

Chemistry

What is the mass, in grams, of each of the following? 44.3 mol Xe

chemistry

What element has 20 protons and forms a +2 Cation?

CHEMISTRY

iatrochemistry -what is it? -who created it? (facts about him/her)

chemistry

iatrochemistry -what is it? -who created it? cant use wikipedia :s thanks!

Chemistry

What is the enthalpy change when 17.0 g of water is cooled from 36.0°C to 6.40°C?

chemistry

what should i be aware of when heating NH4andCO3

Chemistry

How many carbon atoms are contained in 2.8g of C2H4?

chemistry

what are two resonance structures for SPN

Chemistry

What is the enthalpy change when 19.0 g of water is cooled from 33.0°C to 2.70°C?

Chemistry

What is the enthalpy change when 19.0 g of water is cooled from 33.0°C to 2.70°C?

chemistry

How do you know the number of ions present in a compound.

Chemistry

How is the solubility of a solid affected by temperature?

chemistry

how many oxygen atoms are in 0.25 mole of SO3 ?

chemistry

1.25 g of HClO3 is _________ moles of molecules?

Chemistry

how many moles of Ba(OH)2 are present in 295mL of 0.400 M Ba(OH)2?

Chemistry

Which gas will be made when Mg, Al, or S reacts with HCl?

Chemistry

What is the chemical symbol for bromine vapour?

Chemistry

7.72 g of CuBr2 contains how many bromide (Br-) ions?

chemistry

Lewis dot structure of IF4+

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