chemistry! URGENT

60,186 results, page 49

chemistry

how to convert 2.80cm into grams?

Chemistry

Prepare 250 cc n/10 KMno4 solution

Chemistry 12

The value of Kb for HPO₄²- is? A. 2.2*10^-13 B. 6.2*10^-8 C. 1.6*10^-7 D. 4.5*10^-2 I don't get how to solve this.

chemistry

balance the equation c2h4(g)+o2(g)---c(s)+h2o

chemistry

why NH4+ ion is not strong ligand

Chemistry

How many moles of OCl2 contain 38.42 g of Cl? Answer

Chemistry

Fe 3+ + scn- + Na2PHO4 produces what exactly?

Chemistry

Why is the formula for potassium peroxide K2O2?

chemistry

newton 1st law of motion

Chemistry

Calculate the mass of each element in Na2CO3

Organic Chemistry

What is the Product of 1,4-Cyclohexadiene + KMnO4?

chemistry

how much pb can be isolated from 3.5kg of pbco3?

Chemistry

how can you prepare 300ml of 15% h2so4 solution

Chemistry

What is the lewis dot structure for copper?

chemistry

How do you find q in q=mC delta t without the mass

chemistry

"empirical formulas" p 889(153e)

chemistry

how many c atoms are contained in 15.63g of c5h12??

AP Chemistry

Formal charge: When do you use it? How is it calculated?

AP Chemistry

Formal charge: When do you use it? How is it calculated?

chemistry

Calculate the wavelength of a photon with energy 2.45 eV.

chemistry

Calculate the wavelength of a proton with energy 2.45 eV.

chemistry

What groups would be ionized in a solution of pH 12

Chemistry

How do you balance Fe2O3+C. 2Fe+CO2

chemistry

How to convert centimeters into grams

college chemistry

if my sublimation apparatus imploded, what was the cause of it?

chemistry

how many grams of h2 are required to produce 11/4000

chemistry

how do i balance SO3 + H2O = H2SO4

Chemistry

What is the C-C-H bond angle in the molecule H2CCO?

chemistry

draw the conformational structures is 2-methylpentane?

Chemistry

What is the pH of a saturated zinc hydroxide solution?

chemistry

5:8 emperical formula with hydrogen and carbon

chemistry

define elements, compound and molecules.

chemistry

What is the chemical equation of methylamine with CuSO4?

Chemistry

Assuming complete dissociation, what is the pH of a 2.55 mg/L Ba(OH)2 solution?

chemistry

how many moles of O2 are contained in 6.53 L with 297 K and 6.6 atm

Chemistry

What is the molecular equation for HCl(aq) + NH4OH(aq)?

CHEMISTRy

predict the product of the following: a.) Ca + H + OH => b.) Pb(NO3)2 + Cu =>

chemistry

How to calculate the molarity of commercial bleach

Chemistry

Express 798 mm Hg in units of atm

chemistry

How many Cl atoms are in a 2.54g sample of CCl4?

Chemistry

calculate the ph of titration of 50.0 ml of 0.140 m hclo (aq)

Chemistry

What volume does 3.01 x 10^21 molecules of N2 occupy at STP?

Chemistry

What is the formula for CoCl2 with 45.5 percent water?

Chemistry

3.00 g of H2 reacts with 200.0 g of AgCl. what is the yield?

chemistry

how many grams of oxygen are in 175 g of C5H10O5

Chemistry

Co-ordination number of Cr in dibenzene chromium is ??

Chemistry

Co-ordination number of Cr in dibenzene chromium is ??

Chemistry

How many grams of Na2O are produced when 62.5g of Na reacts?

chemistry

how do i find the specific heat of a metal??

chemistry

what is the solid remains in lithium trioxonitrate v

chemistry

What is the solubility of Ca3(PO4)2 in 0.06 M of K3PO4

chemistry

Is benzophenone soluble in phosphoric acid?

Chemistry

What is the Ka of the amino acid serine if it is 34.5% dissociated at pH- 9.46?

Chemistry

cd2+ (aq) +ni(s)---> cd(s) + ni2+ (aq) what is the half reaction

Chemistry

cd2+ (aq) +ni(s)---> cd(s) + ni2+ (aq) what is the half reaction

Chemistry

How do you find the equilibrium constant? ..steps?

Chemistry

cd2+ (aq) +ni(s)---> cd(s) + ni2+ (aq) what is the half reaction

Chemistry

How do you find the equilibrium constant of: B + O2 <-> BO2 ??

chemistry

The density of CO2 (g) at 25°C and 715 torr is:

Chemistry

Name the compounds CH3CH2CHCH2CH3 - Is this 3-Pentane? Thanks

Chemistry

0.1 mol of HCl is added to 1 L of water. What is [H+] and [OH-]?

Chemistry

Is there a difference between SiO2(aq) and H4SiO4?

chemistry

If we have a concentration of H+ at 5 x 10-2 mol/L, what is the pH value?

chemistry

which orbitals have centre of symmetry

chemistry

What is the primary standard for the preparation of silver.

chemistry

What is the primary standard for the preparation of silver.

chemistry

What is the primary standard for the preparation of silver.

chemistry

What is the primary standard for the preparation of silver.

Chemistry

how many ml of .5M HCL are required to neutralize 600 mg of Mg(OH)2?

inorganic chemistry

silt is an example of ........ Hydride

chemistry

how many moles of nh3 are produced from 16 grams of n2 ?

chemistry

you have 333 ml of alkaline solution at pH=11.1

chemistry

What kinds of bonds are present in graphite?

Chemistry

How many meters underwater is 3.128 atm?

chemistry

what happens when iron reacts with steam

Chemistry

Why is a beehive used in the preparation of hydrogen

chemistry

Whadetermines the behavior of an amphoteric compound?

Chemistry

What is the reaction for 2NH4I+Cl2=2NH4Cl+I2

Chemistry

How many grams of NaCl are produced from 6 moles of Na?

Chemistry

Draw the product of the hydration of 2-butene.

Chemistry

Draw the product of the hydration of 2-butene.

Chemistry

How many kilojoules are released when 85.0g methanol is burned?

Chemistry

what does the 8 on top of a chemical symbol signify?

Chemistry

The solubility of AgCl (s) is 2.5 x 10^-5 M. calculate the ksp

chemistry

How many moles of compound are in 30.2 g of Na2CO3·10H2O?

chemistry

how many covalent bonds are there in methane molecule

Chemistry

What is the electron pair geometry for NCL3?

Chemistry

What is the electron pair geometry for NCL3?

Chemistry

The maximum molecular mass ............ Atoms.

Chemistry

What's the correct empirical formula for CO2?

chemistry

How many liters is 5.8 moles of neon (Ne) at STP?

Chemistry stochimetry2

The volume strength of 1.5 N H2O2 is.......

Chemistry

The normality of 0.3 M phosphorus acid (H3PO3) is.......

Chemistry

Calculate the moles of O in 2.57g of Ba(No3)2 I get 33.2m

Chemistry

Halogen have ... Electron affinity

chemistry

how many sig figs in this number: 32.6721

Chemistry

Calculate the wavelength of a proton with energy 2.45 eV.

chemistry

How many moles of Na2CO3 are teher in 5.oL of 2.0 M solution?

chemistry

If you have 13.0g of Na, how many grams of O2 are required for the reaction?

chemistry

what is the name of reaction for 3C2H2--> C6H6?

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