chemistry! URGENT

60,616 results, page 63

chemistry

why we cant use hcl to react with Fe to create fecl3?

Chemistry

How many grams of sulfuric acid is in 25.0 g of 8.00 % H2SO4 solution?

chemistry

Effect of temperature on surface tension an viscosity ?

chemistry

Why is Fe3+ likely to precipitate in the presence of oxygen?

Chemistry

Thanks Dr.Bob On the periodic table, which block has 5 orbitals? Is it s, p or f? Thanks.

chemistry

why is the graph of the meliting points of hydrocarbons not consistent?

chemistry

How many atoms are in 10.0 cm3 of mercury (at room temperature)?

chemistry

difference between solution and pure substance

chemistry

what mass of Fe3O4 would conatin 1.85*10^21 atoms of Fe?

chemistry

convert 725mm Hg into equivalent kPa

Chemistry

Experimentaly discribe how to determine the formula of magnesium.

Quantum chemistry

For the simple harmonic oscillator determine: b. [Tˆ,Vˆ ]

chemistry

Express your answers as integers separated by commas.

Chem

hydrate mean in an inorganic chemistry context

chemistry

What volume (mL) of a 3.23 %w/v saline solution contains 69.1 mg of NaCl?

Chemistry

How many grams of carbon are in 4.30×1023 molecules of (C3H5)2S?

Chemistry

Why is it important to identify the limiting reactant in stoichiometry?

Chemistry

What is the volume of 0.674 kg of acetylene, C2H2, at STP?

chemistry

find the concentration of Pb^2+ in equilibrium with PbBr_2_ and 0.10M Br^-

chemistry

find the concentrations of Ca^2+ and F^- in a saturated solution of CaF_2_

Chemistry

What is the change in enthalpy when 17.0 g of liquid mercury is heated by 31°C?

Chemistry

What is the wavelength of an electron traveling at 7.59% of the speed of light?

chemistry

how do you use aldehydes to prepare acyl chlorides?

Chemistry

Is the dissolution of calcium sulfate endothermic or exothermic? How do you know?

Chemistry

What is the enthalpy for the following reaction? N204 = 2NO + O2

chemistry

How many moles of hno3 neede to prepare 7.5 l of a 5.6m solution

chemistry

What is the solubility of AgCrO4 (Ksp= 9.0 x 10^-12) in distilled water?

Chemistry

the ka of hypochlorous acid hclo is 3.5 x 10^-8. What is Kb for the hypochlorite ion?

chemistry

How many grams are in 4.00mol of sodium chloride (\rm NaCl)

Chemistry

How do I quickly identify whether or not a salt is soluble?

Chemistry

Can the reaction 2Ni(s)+MgSo4(aq) occur.Explain why?

chemistry

ch4(g)+nh3(g) translate into words help!

chemistry

If 22.0 of gas has a volume of 0.22 at 320 , what is its pressure in mmHg?

chemistry

calculate the L of 5.00 M HCI required to neutralize 500.0 mL of 1.00 M Ca (OH)2

Chemistry

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

chemistry

what is the mass of LiF is needed to produce 2.5 L of a .30 M solution

Chemistry

How many grams of co2 are in 3.92 times 10 to the 24th molecules

chemistry

net ionic equations for Ca(NO3)2 +NaPO4

chemistry

C2H5OH+O2-CH3COOH+H2O HOW MANY MOLES OF ETHANOL IN 5g

Chemistry

What is the equation for the reaction of potassium soap with HCL?

Chemistry

What is the solubility of Ca3(PO4)2 in 0.045 M of CaCl2

chemistry

is there a chemical equation for gadolinium medium contrast?

Chemistry

What is the pH of a solution that is 0.0100 M in HCN and 0.0200 M in NaCN?

Chemistry

What concentration of SO32– is in equilibrium with Ag2SO3(s) and 3.60 × 10-3 M Ag ? The Ksp is 8.46×10–12.

Chemistry

What concentration of SO32– is in equilibrium with Ag2SO3(s) and 3.60 × 10-3 M Ag ? The Ksp is 8.46×10–12.

Chemistry

What concentration of SO32– is in equilibrium with Ag2SO3(s) and 3.60 × 10-3 M Ag ? The Ksp is 8.46×10–12.

Chemistry

dilute the concentration of 100mL of KIO3 from 0.5M to 0.0005M

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)

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