chemistry! URGENT

59,905 results, page 63

Chemistry

Solve for A and B 0.433= (45.6*A) + (3.152*B) 0.3363= (11.92*A) + (37.675*B)

Practical chemistry

Preparation of 0.1m H2S04 of 500cm3 flask

Chemistry

What is the mass of ethylene gycol dissolved in 5.00 kg of a 40.0% solution?

Chemistry

cr(s)--->Cr^3(aq)+3e- and Pb2+(aq)+2e---->Pb(s) write a balanced equation Please help thanks

Chemistry

cr(s)--->Cr^3(aq)+3e- and Pb2+(aq)+2e---->Pb(s) write a balanced equation Please help thanks

chemistry

please i need example of hno3 cuo

chemistry

how to determine the oxalate and copper in K[Cu(C2O4)2].2H2O

chemistry

Can a solution of CrCl3 be stored in an aluminum container?

Chemistry

Is Cl2 + 2e- -> 2Cl- an oxidation half-reaction?

Chemistry

Is Cl2 + 2e- -> 2Cl- an oxidation half-reaction?

chemistry

balanced equation for the reaction of HNO3 + STARCH +KI

M.m.m.campus (chemistry)

Laboratory preparation of carbon dioxide?

Chemistry

Does NaHCO3 form an acidic aqueous solution?

Chemistry

Would the VSEPR notation of CH3Cl be AX4?

chemistry

What is the balanced equation for a reaction of iron with chlorine?

chemistry

how do i convert 0.00183338433 g/mL to mM? and putting it in 4 significant numbers. thank u

chemistry

sulfuryl cholorie decomposes toSo2 and cl2

chemistry

the skeletal structures of two amino acids.

chemistry

what kind of hybridization exists for each carbon in the lattice?

Chemistry

What is the difference in alkane and Alkene functional group?

chemistry

You have 10.0 g each of Na, C, Pb, Cu and Ne. Which contains the smallest number of moles?

Chemistry

How do you draw N,N-dimethylheptanamine? The N,N part is confusing me most.

Chemistry

How many grams of NaOh are needed to prepare 0.5l of a 4m solution?

Chemistry

How to separate and isolate the components of barium sulfate?

Chemistry

2C6H6+X -> 12CO2+6H20 Find x Is x 30O?

Chemistry

Calculate the [H], [OH], pH and the pOH of this solution; 0.0025 M NaOH

chemistry

what is evidnece that cathode rays are part of matter?

chemistry

What is the vapor pressure of helium at 1 atm and 298 k?

Chemistry

What is the vapor pressure of CH4 at 1 atm and 298k?

Chemistry

What is the difference between polar and nonpolar molecules?

Chemistry

How many moles of iron atoms does a 27 g sample contain?

chemistry

caculate 230 ml of 1.1 molarity HCl solution

Chemistry

Calculate the ph of a buffer made from 0.25 m NH4Cl and 0.42 M NH3. Kb= 1.8 x 10^-5

Chemistry

Suppose the solubility of PbCl2 (s) 5.6 x 10^-2 M. Calculate the ksp

Chemistry

how do you draw a Lewis structure for lithium chlorine

chemistry

why do we add anhydrous ether to organic mixtures?

Chemistry

Why is ionization energy for calcium greater than that for potassium?

chemistry

calculate the wavelength of an electron m=9.11 x 10^-28 g moving at 3.66x10^6 m/s

chemistry

calculate the wavelength of an electron m=9.11 x 10^-28 g moving at 3.66x10^6 m/s

Chemistry

What is the molarity of a 5.00 x 102 ml solution containing 2490 g of KI?

CHEMISTRY HELP! D;

1.Br2(g) + ___H2O(l) + ___SO2(g) ---> ___HBr(aq) + ___H2SO4(aq)

AP Chemistry

Where did you get the two that you multiplied by the atomic mass of iron?

chemistry

determine the molecular mass of magnesium oxide?

Organic Chemistry

Is ethyl cyclohexane optically active?

Chemistry

If 23.7g of C8H18 are combusted, what mass of water will be produced?

Chemistry

How many mole of KClO3 are needed to make 320g O2

chemistry

how much oes 3.10cm3 of copper weigh

chemistry

acid rain --how does it cause environmental and health problems

Chemistry

why is it impossible to completely separate ethanol from water?

Chemistry

why is it impossible to completely separate ethanol from water?

chemistry

How many grams of O2(g) are needed to completely burn 24.0 g of C3H8(g)?

Chemistry

Provide the products for this reaction: CH3O- +CH3SH -> ????

Chemistry

How many moles of H2O are in 3.00L of water? (d=1.00g/mL)

12th grade chemistry

What is the structure for ethyl ethanamide? (Ie. c-c-N-c-c) ??? Thanks

Organic chemistry

Name all the isomers for c5h10br2

Chemistry

What is the balanced chemical equation for Sr(NO3)2 + Na2PO4

Chemistry

How many moles are contained in 1.20 x 1024 molecules CO2?

Chemistry 10

reaction of AgNO3 with BaO... Would it be Ag^+ + O^---> AgO (s)

Chemistry

How to write the equation for the combustion of ethane C2H6?

Chemistry

Convert the concentration of CoCl2 from 22.0 mg/mL into molarity.

Chemistry

How many moles of NH3 can be produced from 19.5mol of H2 and excess N2

Chemistry

Calculate the number of atoms in 46.0 grams of Calcium 9(Ca)

chemistry

When doing an experiment with a calorimeter why is important to keep the lid on?

chemistry

How many grams of H2 are needed to produce 10.75g of NH3?

Chemistry

How many lone pairs are in a chlorite ion (CLO2)- ?

Chemistry

how do I do this problem 0.700 mol of Na2S in 1.55 of solution?

chemistry

How many grams of carbon dioxide are produced from 48.8 g of C4H10?

Chemistry

When CuCl2 and NH4OH are combined what is the product formed?

Chemistry

When CuCl2 and NH4OH are combined what is the product formed?

Chemistry

When CuCl2 and NH4OH are combined what is the product formed?

chemistry

DrBob222 - it says my answer should be a number.

general

What are some great sites to help you with chemistry problems?

chemistry

Na3PO4(aq) and AgNO3(aq). Write the ionic equation.

chemistry

The pressure in a 5.75 L container of 48.0 g of bromine gas at 100.0°C is

Chemistry

How would I extract benzophenone from acetylsalicylic acid? thanks

chemistry

Is CO2 a product of an acid/base reaction?

Chemistry

Why does Cl- have a larger ionic radius than CA2+ ?

Chemistry

Why does Cl- have a larger ionic radius than Ca2+ ?

chemistry

Write the equation for the dissociation of carbonic acid.

Chemistry

Please help! Is 4-methylphenol acid, basic or neutral?

chemistry

2.5g of magnesium is how many moles? How do i set it up? Help would be awesome thanks.

CHEMISTRY

CALCULATE THE MOLARITY OF 50.0g OF NaCL IN 7820mL OF SOLUTION

Chemistry

What is the % (m/v) concentration of the calcium chloride 1000.00mL

Chemistry

What is the osmolar concentration of 1.000M CaCl2 solution

Chemistry

Do pipettes blow up like balloons when they are heated. Why or why not?

Chemistry

How do you express relative amounts pf each element in a compound?

AP Chemistry

What is the value of Ksp for Ag2SO4 if 5.70 g is soluble in 1.00 L of water?

Chemistry

Which gas diffuses most rapidly at STP? Ar, Kr, N2, or O2? Why?

chemistry

Diagram for the preparation of oxygen from potassium trioxochloric(v)

CHEMISTRY

HELP MY REPORT IS ABOUT SATURATED ND UNSATURATED SOLUTIONS

Chemistry

Rank Cd, Br, and Si from worst to best conductor of electricity. Is it Br, Cd, Si? Thanks -MC

chemistry

solve net ionic equATION Ba(OH)2 + Na2SO4

Chemistry help

How many grams if nh3 can be produced from 2.57mol of n2 and excess h2?

Chemistry

How many grams of H2 are needed to produce 12.88g of NH3?

Chemistry

How many molecules (not moles) of NH3 are produced from 3.65x10-4g of H2?

Chemistry

A+2B--->2C Kc=2.27 2c--->D Kc=0.144 Calculate the equilibrium constant for the reaction D--->A+2B

Chemistry 192

Give the electron configuration for the following: A) Ni^2+ B) Br^-

Chemistry

A solution has 0.45 mol of NaOH dissovled in 90 L of water. What is its [OH-]?

chemistry

calculate the number of molecules found in 4.50 g of water

chemistry

What is the product for Ni(s) + 2Na^+? I don't think this is possible. Am I wrong?

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