chemistry! URGENT

60,378 results, page 41

unt

chemistry ---- 77=25 to the x power. Can anyone assist.

chemistry

Why is 5% NaOH insoluble in HCl?

chemistry

9276mL/s^2= gals/hr Is it 3.174x10^8

chemistry

How many moles of permanganate are in 5.93 L of a 3.81 M solution?

chemistry

what do you use a pipestem triangle for

Chemistry

What is saponification (soap making) ?

Chemistry(Please respond)

A study of the system, H2(g) + I2(g) == 2 HI(g), was carried out. Kc = 54.9 at 699.0 K (Kelvin) for this reaction. A system was charged with 2.50 moles of HI in a 5.00 liter vessel as the only component initially. The system was brought up to 699.0 K and allowed to reach ...

Physics Urgent please help

At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F = -c_1*r*v , where c_1 is a constant. At time t = 0, a small ball of mass is projected into a liquid so that it initially has a horizontal ...

Physics pls anyone can help me? its urgent

At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F = -c_1*r*v , where c_1 is a constant. At time t = 0, a small ball of mass is projected into a liquid so that it initially has a horizontal ...

Urgent!

Project: Data Analysis The following chart lists the average low, average high, record low, and record high temperatures for the month of April in Denver, Colorado. Day Average Low Average High Record Low Record High April 1 32°F 58°F 6°F 78°F April 2 32°F 58°F -3°F 79...

chemistry

Online chemistry lab preparing standards help? I was told to prepare some standard for a chemistry lab and here where the instructions: Obtain a solution of known phosphate concentration. In this lab we will use (1.e-002M) potassium dihydrogen phosphate, KH2PO4. Note the ...

Chemistry

Really hard Chemistry question that I need help with. Any assistance would be really helpful.? When 0.5963g of a sample containing NaNO2 and some inert material is allowed to react with excess HSO3NH2, the volume of N2 gas produced is measured. The volume of N2 gas corrected ...

chemistry

Determine the number of bromide ions in solution when 4.23 g of magnesium bromide and 1.21 g of potassium bromide are dissolved in 120mL of water. Please explain not sure how to even start this problem, thanks! chemistry - DrBob222, Wednesday, December 8, 2010 at 7:57pm ...

Chemistry

Dear sir, madam, I am having a little problem with the solution my chemistry book gives on the following problem: We have a person whose body vitamine C concentration decays according to the following formula: 1500*0,974^t. Question A is no problem, but then question B: "...

Managerial Economics- URGENT

The Blue Dragon Restaurant is a new Chinese Restaurant in town. As the only Chinese restaurant in the area, it faces the following daily demand curve: Q = 500 – 25 P Where Q is the number of meals it serves per day and P is the average price of its meals. The cost function ...

chemistry help!

I have a chemistry test tomorrow and I'm trying to study but none of these questions in the book make sense to me:( Help! 1. Commericially available concentrated sulfuric acid is 95% H2SO4 by mass and has a density of 1.84g/mL. How many milliliters of this acid are needed to ...

chemistry

Hey guys please help me answer these chemistry questions.? 1. can a strong acid be diluted. explain in detail 2. can a weak acid be diluted. explain in detail 3. how does your observation of sunlight change when you place two different concentrations of food colored solution ...

Chemistry II

Are mixing and separation increases in entropy?

Chemistry

how do you finish the equation for Al(NO3)3 + KOH

chemistry

how does the temperature affect the density of an object?

chemistry

how many molecules are there in 450 grams of FeF3?

Chemistry

What is the formula for Iron(III) sulfide? And why?

chemistry

describe the structure of ionic compounds

Chemistry

which is a strong electrolyte KCl or HCH3OOH

chemistry

what is the name of the polyatomic ion (C2O4)-1?

CHEMiSTRY

whats the chemical composition of steam?!?

Chemistry

How do I figure out the mass of a skittle?

Chemistry

How many valence electrons does phosphourous have

Chemistry

1. How is the rate affected by doubling the concentratino?

Chemistry

A balanced equation for CuSO4+NaCl--> ???

CHEMISTRY

what is the oxidation state of chlorine in Cl2O7

chemistry

WHAT IS THE MASS OF 0.200 mol of C9H8O4?

chemistry

What is the oxidation state of S in Rb2SO4? is the charge = 0?

Chemistry

what is the specific heat for Al2O3 as a solid?

chemistry

what type of compound is benzoic acid

intergrated physics and chemistry

how is work expressed

chemistry

Is NH4+ a polar or nonpolar bond?

Chemistry

What are some practical applications of chromatography?

chemistry

What is dipole moment of BeCl2? and hybidization?

chemistry

which of the following will result in a chemical change?

chemistry

the condensed formula for 5-propylnonane and 3,4-diethylhexane

chemistry

How do I make a 6M NaOH solution? (25mL)

chemistry

How do atoms bond to form molecules?

chemistry

how to know clarify if the subtance is polar or nonpolar?

Chemistry

Provide the units for each of the terms of q=mCp^T Thanks!

Chemistry

Does anyone know what CH3CH2CH(OH)COOH or C4H9O(C=O)CH3 is?

Chemistry

Is Methyl Propyl Ether CH3OCH2CH2CH3?

chemistry

what is a practical use for metallic changes?

chemistry

what is the major product of dehydration of an acohol?

Chemistry

what is the rate law of S2O8^2- + 3I- ---> 2SO4^2- + I3-

chemistry

how many atoms are present in 80.0 mol of zirconium?

Chemistry

what is the rate law of S2O8^2- + 3I- --> 2SO4^2- + I3-

chemistry

how mant electron valences are in CCl4

chemistry

is calcium carbonate a base? (whats its ph?)

Chemistry

What are compunds that are composed of molecules called?

chemistry

what is the hybridization at O with the lewis structure of 2-propanone?

chemistry

What is solubility of CaF2 in a solution buffered at pH 5

Chemistry

The pH of a 1.0 x 10^-3 M Ba(OH)2 solution at 25 degrees C is how can 11.3 be the right answer.

chemistry

Keq = [0.25 - x] / [0.25 - x][2x] = [0.25 - ] / [0.25 - ][2()] = What numbers need to be substituted

Chemistry

How would you find the Kb of a weak base??

chemistry

I need an edible suspension for a project i am doing.

chemistry

how do i produce sulfuric acid at home

Chemistry

How do you determine the pH of a substance with an H+ concentration of 3.2 x 10^-3? Thanks in advance!

chemistry

I know that benzene is an alkene, but what is Isopropylbenzene -- C9H12 ?

chemistry

Last question :) 2-iodopropane -- C3H7I What is this classified as? Thanks

chemistry

How many mL of 0.3 M HCl(aq) are needed to neutralize a 60 mL solution of 0.15 M Ba(OH)2?

Chemistry

How do you decide orbital hybridization of molecules?

Chemistry

What do Na2(CO3)+ Zn(NO3)2 form?

Chemistry

How is limestone used to make mortar?

chemistry

what is the chemical formula of dihydrogen oxide

chemistry

how to determine anode and cathode in a SCE?

Chemistry

How do I find the empirical formula of FeSO4? Thanks!

Easy Chemistry

How many atoms are there in 1.0 gram of iron, Fe?

chemistry

what is the chemical equation for cabonated water

o chemistry

What is the newman projection of meso-2,3-dichlorobutane?

chemistry

What is the pH of 100 mL of 0.10M NH4 Cl? K = 1.8 x 10-5 for NH3 ?

chemistry

What is the equilibrium constant for the following reaction? 3A + 2B <---> 2C

chemistry

Compare the properties of elements and compounds

chemistry

calculate the number of feet in 6.03 miles

Chemistry

Pls what is another name for an octahedral molecule

Biology

Why do you you need to perform dilution(s)in chemistry?

Chemistry

How do atoms bond to form molecules?

Chemistry

Convert 10.3 g x cm3/second2 to kg x m3/hour2

college chemistry

What si the pH of a solution of 10^-8 M HCl in H2O?

Chemistry

the number of moles in 6.2g of sodium oxide

chemistry

list 3 different cell shapes

chemistry

what is the purpose of the diaphragm on a light microscope

chemistry

what is the significant figure in the value of 20200

Science--Chemistry

How do you solve the reaction: Li + Mg2+ = ?

chemistry

The shape of H3C+ is best described as?

chemistry

who developed the law of deinite proprotion?

chemistry

what is the usual uncertainty for conical flask?

science (chemistry)

how do oxygen, and hydrogen combine

chemistry

why is platinum more expensive than gold??

Chemistry

How can i find the manganese content of tea?

chemistry

How many electrons are actually in the composite band for Fe ?

chemistry

what happens when a acid is added to a carbonate

chemistry

What is 1.384 kg multiplied by 5.4 square meters?

chemistry

what are four components of the water molecule?

Science- Chemistry

What does NaHco3 + HCl produce?

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