chemistry! URGENT

60,378 results, page 86

chemistry!

how could i use 13Cn.m.r spectroscopy to distinguish between the ketone and the alcohol?

chemistry

What is the pH of the solution created by combining 2.80 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HC2H3O2(aq)? I got 1.3. is that correct?

Chemistry

Use the drawing of MO energy diagram for CO to predict the bond order.

Chemistry

What is the balanced chemical equation for neutraling chlorine with sodium thiosulfate

chemistry help asap

explain how paper chromatography separates the components in a solution

chemistry

what mass of AgNO3 can be dissolved in 250 grams of water at 20 degrees C?

Chemistry

Can you tell me what the empirical formulas are for C2H6O4 N2O5 Hg2Cl2 C6H12 Thank you!

Chemistry

WHat is the bond identified as if two covantley bonded atoms are identical?

chemistry

Is it possible for hydrated sodium carbonate to continue to absorb water?

chemistry

Why must a balanced chemical equation be used when determining Keq?

chemistry

whats the correct formula for 1. rubidium selenide 2. potassium phosphate

chemistry

your experiment yielded 50kg of NaCl (D= 4.5g/ml. What volume of your yield is this in liters?

chemistry

balance this stoichiometric equation: SO2 + CaCO3 + O2 ------> CaSO4 + CO2

Chemistry

Calculate the Ph of an aqueous solution that is 3.00% KOH, by mass, and has a density of 1.0242 g/ml.

chemistry

Which type of fat is easier to break down, saturated or unsaturated? Why?

chemistry

in column chromatography in general do polar or nopolar elute first

chemistry

What does it mean when the sulfuric acid is written ABOVE the arrow in a reaction?

Chemistry

For how long should you boil the water in the flask during your experiment?

Chemistry

What gas has the greatest "lifting power" in lighter than air balloons?

Chemistry II

Is iodine (I2) more soluble in water or carbon disulfide (CS2)? Why?

Chemistry

How do you figure out how to express the mass of the electron to significant figures?

college

here is a chemistry 10 quetion. Convert 35.2mL to hm to third power

ap chemistry

give an example of an organic compund made from inorganic substances

Chemistry

How would you calculate the number of atoms for 1.004 mol bismuth

Chemistry 151

How much oxygen is required to completely react with 10 g of C4H10?

chemistry

What volume (in mL) of the base will react completely with 30.00 mL of 0.550 M HCl? 0.0500 M Ba(OH)2

chemistry

all metric units of length are based on multiples of _________

chemistry 12th grade

can carboxyl groups undergo controlled oxidation...why or why not??? thanks

Chemistry

I needed what Cr the metal is soluble and insoluble in and inks was supposed to be links.

Chemistry

Name the following: CH3CH2Ch(OH)COOH CH3OCH2CH2CH3 C4H90(C=O)CH3

organic chemistry

what is the purpose of a hot filtration? when is it necessary to preform one?

Chemistry

Does Sodium and potassium react with steam? Or is the reaction too violent to speak of?

chemistry

I wanted to know that in a chemical reaction are the products part of the system or surrounding?

Math/chemistry

how do I solve this equation? 106 g * 4.184 * (X-23 degrees celsius)

chemistry

What is similar about the outer shell of electrons in the halogen family?

chemistry

What mass of copper, contains the same number of atoms as 50.0 g of silicon?

Chemistry

a sample of C3H8O that contains 200 molecules contain how many atoms?

Chemistry

In the compound PtCl2(NH3)2, what is the percentage of the mass due to nitrogen?

Chemistry

Which of the following is most likely to LOSE electrons when forming an ion? a. F b. P c. S d. Rh e. Se

chemistry-atom

why does splitting a nucleus create a tremendous amount of energy?

chemistry

What is the most common structural feature of chiral organic molecule?

Chemistry

Complete and balance the following equation? __P4O6+__H2O -> ___________

Chemistry

How can you determine which acid solutions (all at 0.10 M) has the highest concentration of anions?

chemistry

What factors affect the rate of diffusion of one gas through another

chemistry

what is the relationship between the area a force is applied to and the resulting pressure?

chemistry

how are the absolute temperature and volume of a gas at constant pressure related?

chemistry

how many grams of kno3 should be used to prepare 2.00 l of a 0.500m solution

chemistry

how many grams of kno3 should be used to prepare 2.00 l of a 0.500m solution

chemistry

how many grams of kno3 should be used to prepare 2.00 l of a 0.500m solution

chemistry

how many grams of kno3 should be used to prepare 2.00 l of a 0.500m solution

chemistry

how many kg of h20 must be added to 75.5g of Ca(NO3)2 to form a 0.500 m solution?

Chemistry

What gas is produced when hydrochloric acid is reacted with ammonium carbonate?

Chemistry

What volume of 0.130 M NaOH is needed to neutralize 4.00 g of benzoic acid?

chemistry

Calculate the amount of heat (in calories) released when the 1.2 g sample was burned.

chemistry

write the reaction for the neutralization of nitric acid with calcium hydroxide.

chemistry

name a metal carbonate that doesn't decompose when heated with a bunsen burner.

chemistry

If 20.0g of nitrogen gas has a volume of 4.00L and a pressure of 6.0 atm, what is its temperature?

chemistry

would measuring dimensions of a solid always be possible? Explain thanks =]

chemistry

A radio wave has a frequency of 3.6 * 10 10 Hz. What is the energy of one photon of this radiation? thank you.

Organic Chemistry

what is meant by "resolving" an enantiomer pair? what are some ways in which it can be done?

chemistry

STRUCTURE OF HNO4,(CH3)2SO,(CrO4)2-,NH4NO3,FNO3

Chemistry

What type of bond is formed in the reaction 4Fe(s)+3O2(g)? Rust?

chemistry

How many molecules of O2 are in a 3.5 liter container? How many atoms? Must show work.

chemistry

the solubility product expression for BiS3 is Ksp= a.[Bi2^3][S3^2-]. b. [Bi^3+][S^2-]. c. [Bi^3+]^2 [S^2-]^3 d. none of these

chemistry

What is the mathematical relationship between Boltzmann distribution and relative energy?

college chemistry

how do I calculate the amount of heat lost by the metal, qmetal?

Chemistry

what is the importance of the weak intermolecular bonding in organic carbon compounds

Chemistry

it says: calculate the number of grams of NH3 produced when 21.0 g of H2 react with N2.

chemistry

what is the concentarion of hyrdoxide ions in 250ml 1.1mol/l of calcium hydroxide

Organic chemistry

is benzoic acid soluble in water, 1.0M NaOH, 1.0M HCl?

chemistry

At what temperature (in degrees C) does acetone have Pvap= 102 mmHg?

chemistry

how do i name the ionic compound bythis formula (NH4)2Cr2O7

Chemistry

how do i find which substances are most likely to obey raoult's law?

chemistry

Which of the following has the largest molar mass? A. isopropanol B. Water C. ethanol

CHEMISTRY

TO WHAT SPEED MUST AN ELECTRON BE ACCELERATED FOR IT TO HAVE A WAVELENGTH OF 3.0CM?

Chemistry

Here is a chemical reaction Fe + O2--> Fe2+O3 what was Antonie Lavoiser rusting?

chemistry

how many grams of propane are in a 35L container at 40 degrees and 900 torr?

chemistry

how many grams of propane are in a 35L container at 40 degrees and 900 torr?

chemistry

What quantity of heat is required to vaporize 32.5 g of liquid water at 100°C?

Chemistry

DrBob222 please help me answer the question that I posted pleaseee, pleaseeee

chemistry

the molarity of ferric ion in a .060 M solution of Fe2(SO4)3 is?

Chemistry

An endothermic process absorbs 138kJ. How many calories of heat are absorbed?

chemistry

which is the only noble gas listed that is stable at 0 degrees celsius?

Chemistry

What is the solubility of calcium iodide (in g per 100 cc of cold water)?

Chemistry

What type of extraction can be used to separate Hexane and a substance soluble in it?

chemistry

Can someone give the fomula of finding the molar volume of oxygen

chemistry

How many moles of water are contained in 0.250 mol of CuSo4 x 5H2O?

chemistry

Why must bromine be added slowly to trans-cinnamic acid?

chemistry

What is the freezing point of a solution of 5grams of CaCO3 and 10ml of H20?

chemistry

What element is undergoing reduction in the following reaction? Zn(s) + AgNO3(aq) --> Zn(NO3)2 + 2 Ag(s)

Chemistry

What is the balanced ionic equation between bromine and sodium bisulfite??? thanks

chemistry

what about HCN, HCLO4, H2SO4 , are they strong acids or weak

Chemistry

Which type of stoichiometric calculation does not require the use of the molar mass?

chemistry 1

what is the value of the coefficient for cobalt when the following equation is balanced Co(s)+ O2 (g)> Co2O3(s)

chemistry

How many grams of NaN3 are required to produce 17.4 ft3 of nitrogen gas?

chemistry

What is a complete ionic equation for the reaction between Pb(NO3)2 and NaI?

chemistry

how many moles are in a 65L sample of chlorine gas at 10degrees Celcius?

chemistry

double indicator titration of phosphoric acid with sodium hydroxide

chemistry

how do u calcualte the percent of hydrogen and carbon if given their mass in grams?

chemistry

How many moles of O2 are needed to combine with 0.646 mol Al to give Al2O3?

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