chemistry! URGENT

60,827 results, page 96

chemistry

3. Find the molarity of a solution made from 734 g of Li2SO4 and 2.5 L of water

organic chemistry

what is this compound, it has a mf of c6h12o i. imgur. com/gCgw0Hi. png

Chemistry

What is the density, in grams per liter, of N subscript 2 gas at STP

Chemistry

what are the products when water,ferric chloride and ammonium thiocyanate are combined?

Chemistry

​What is the point called on a graph of pH vs log {[A-]/[HA]} when [A-] = [HA]?   Graphs are listed as “y vs. x”.

Chemistry

Determine the normality of 91.2 g of HCl in 4.3 L of solution. (Round to the nearest hundredth.)

Chemistry

How many molecules are there in 24 grams of FeF3 ? Can somebody please show me how i can get to the answer ? Thank you

chemistry

how many grams of magnesium are required to react with 2.0 moles of hydrochloric acid?

college chemistry

How many grams would you weigh out to get 3.1 X 10-3 Moles of MgCl2?

Chemistry

What mass of iodine contains the same number of atoms as 50.0g of chlorine?

general chemistry

the radius of a chlorine atom is 99 pm and its mass is 5.89 X 10^-23 grams what is the density

chemistry

1oocm3 of 0.1mhcl as to be prepared from 2mhcl, how much of the stalk is required

chemistry

The charge and identity of an ion with 16 protons, 18 electrons and 17 neutrons would be?

Chemistry

Calculate the pH of 75 ml of the buffer composed of .1M HC2H3O2 with .2M NaC2H3O2; to which 9.5 ml of .1M HCl is added.

Chemistry

How much 2 M KOH must be added to 0.5 L of 0.2 M glycine at pH 8 to bring its pH exactly to 10?

Chemistry

If you mix 10 mL of 6 M HCl (aq) and 10 mL of 3M NaOH, will the solution be acidic, neutral, or base?

Chemistry

If you mix 10 mL of 6M HCl (aq) and 2o mL of 3M NaOH, will the solution be acidic, neutral, or basic?

chemistry

Ethylene glycol (antifreeze) has a density of 1.11 {\rm g/cm^3}.What is the mass in G of 435mL of this liquid?

CHEMISTRY

How to calculate the pH of 0.120 M of HClO2? plssss i need the answer asap.

Chemistry

What happen when the pink stock solution is heated in a water bath?

chemistry

Which of the following is not an example of a science? geology astronomy astrology ecology

chemistry

Which of the following is not an example of a science? geology astronomy astrology ecology

chemistry

what determines the color of light when an electron moves from one level to another

chemistry

h2s + HNO3 -->s+ no+H2O balance by oxidation number change

Chemistry

If I have 50 mL of Lead(II) Nitrate, it is possible for me to calculate how many mole is 1 mL of the substance? Thanks

Chemistry

If you want to make 75 mL of a 0.015 M solution of B(OH)3 in water, how many grams of B(OH)3 would you need?

Chemistry/geology

Why is graphite more stable than diamond at 25˚C and 1 atm?

Chemistry

What is the ionic equation for (NH4)2CO3=2NH3+CO2+H2O

chemistry

what mass of carbondioxide would be produced if 500g of ethane is used?

Chemistry

The \rm p \it K_{\rm a} of this reaction is 4.2. In a 0.74\it M solution of benzoic acid, what percentage of the molecules are ionized?

chemistry

(b) Calculate the amount of zirconium produced (in kg) if a reactor were charged with 310.0 kg and 29.0 kg Na.

chemistry

Calculate the wavelength of a proton with energy 2.45eV. in meter plz

Chemistry

What is(are) the precipitate(s) that form when K2SO4, BaCl2, and AgNO3 solutions are mixed?

chemistry

how is it possible for the same element to be oxidized in one reaction and reduced in another?

chemistry

Which atom or ion would you expect to have the smallest radius? Ne F- Na+ Ne-

chemistry

calculate the percentage of water in each of the following hydrates SrCl2*6H2O

Chemistry

What fraction of piperazine (perhydro-1,4-diazine) is in each of its three forms (H2A, HA–, A2–) at pH 7.22?

chemistry

A catalytic converter combines 2.55 g CO with excess O2. What mass of CO2 forms?

chemistry

what is the temperature (degree celcius) of 1.75g of o2 gas occupying 4.6l at 1.00 atm?

chemistry

2.06 X 10^25 formula units of aluminum sulfate would have what mass?

chemistry

To raise the temperature of 200.8 g of water from 50.00 °C to 60.00 °C requires how much heat?

Chemistry

What is the significance of the distance between two metals in the activity series?

chemistry PLEASE HELP

How many milligrams of sodium azide will produce 8.35 Liters of N2 at STP???

chemistry

What volume of oxygen is consumed when 9g of water is formed when butane is burnt?

chemistry

What mass of F2 is needed to produce 116 g of PF3 if the reaction has a 77.4% yield?

chemistry

how do you convert .99grams of copper to moles using the atomiuc weight

Chemistry

What is the oxidation state of Cr in each of the following compounds? (a) CrO (b) CrO3 (c) Cr2 O3

chemistry

does Adding A increased Q, so the net reaction proceeds to the left to decrease Q. a+b=ab

Chemistry

How many grams of NH3 can be produced if 105g of NH4OH are completey decomposed?

chemistry

0.315 M 2(NH4)SO4 and 0.488 M NH3 Calculate concentration of OH

chemistry

how many grams of KClO3 will dissolve in 1 liter of water at 50 degree celisus ?

chemistry

Calculate whether or not a precipitate will form if 1.40 mL of 0.62 M NH3 are added to 4.4 L of 1.0 10-3 M FeSO4.

Chemistry

How do you write a chemical equation for NH4NO3? Is it... NH3 + H2O= NH4 + OH

Chemistry

How many grams of H2SO4 are needed to make a 4.50 m solution in 300 g H2O?

chemistry

How many Liters of a 5.00 M Zn(NO3)2 would be needed to react with 200 g of (NH4)2S?

Chemistry

How many milliliters of 6.50 M HCl(aq) are required to react with 5.95 g of an ore containing 35.0% Zn(s) by mass?

chemistry

What fraction of piperazine (perhydro-1,4-diazine) is in each of its three forms (H2A, HA–, A2–) at pH 8.98?

Chemistry

What do we mean when we say that concentrated nitric acid (HNO3) is 16 molar?

Chemistry

calculate the volume of 0.50 M NaOH needed to saturate 100.0 ml of 0.50 M Zn(NO3)2 with Zn(OH)2

Chemistry

calculate the volume of 0.50 M NaOH needed to saturate 100.0 ml of 0.50 M Zn(NO3)2 with Zn(OH)2

Chemistry

Calculate the volume of 0.3MHCL used to neutralise NaOH solution

organic chemistry

what type of feature will be observd in the ei mass spectrum of chlorobenzene?

chemistry

why spectrophotometric bioassay indirectly determine the concentration of glucose in solution

chemistry

Calculate the solubility of Mn(OH)2 in grams per liter when buffered at each of the following. (a) pH 7.7 (b) pH 9.6 (c) pH 11.3

Chemistry

Why can't NH_3_ donate a proton and act as a Bronsted-Lowry acid?

Chemistry

How many milliliters of 0.291 M HCl would be required to titrate 6.83 g KOH?

chemistry

What is the molar concentration of sodium ions in a 0.450 M Na3PO4 solution?

Chemistry

What are ways in which pka values for weak acids can be experimentally determined?

Chemistry

Calculate the mass of water that will be produced when 5.0 grams of H2 is reacted with excess O2.

Chemistry

Calculate the mass of water that will be produced when 5.0 grams of H2 is reacted with excess O2.

Chemistry

What is the effect of aqeour ammonia on (NH4)2SO4.FeSO4.6H2O?

Chemistry

How much 1.0 M NaOH would be required to completely neutralize 40.0 mL of 0.60 M HCl?

Chemistry

the pressure in a 10.0 L cylinder is raised from 483 mm Hg to 762 mm Hg. What is the new volume?

Chemistry

How many grams of CuSO4 * 5H2O are needed to prepare 100mL of a 0.10 M solution ?

Chemistry

Which is the strongest acid, CCl3COOH or CH2ClCOOH please explain WHY it is stronger.

Chemistry

I'm not really sure how to go about doing this problem... What is the pH of a 7.40 x 10-3 M solution of NH4Cl? Help is appreciated! Thank you

Chemistry

In a zinc-copper cell, Zn | Zn+2(1M) || Cu+2(1M) | Cu, which electrode is negative? a. Cu(s) b. Zn(s) c. Zn+2(aq) d. Cu+2(aq) Its A or C. Not sure. Please help.

Chemistry

If the temperature of 150.0g of water increased from 23.3C to 44.8C, how much heat was absorbed

General Chemistry II

Why is the Ksp value larger for NaNO3 and KNO3 than water?

chemistry

a salt shaker filled with 17.0g sodium chloride contain how many moles?

10th grade chemistry

How many grams of kno3 can be dissolved in 100g of h2o at 50°c

chemistry

how many atoms are present in a sample of water molecules with a mass of 1.800g

Chemistry

If the pressure is 10.0 atm, what is the temperature? If a 2.53-L container is filled with 169 g argon

chemistry

how does an increase in pressure affect the following reaction? C2H2(g)+H2(g) C2H4(g)

chemistry

effect of Bacl2 and HNO3 of (NH4)2so4.feso4.6ho2

Chemistry

What are the healthcare applications of biochemical, pharmaceutical and diagnostic chemical reactions?

chemistry

What is the charge carried by electrons as 0.120 mole of Cr(s) is oxidized to Cr3+(aq)?

chemistry

what is the word and balanced chemical equation for oxalic acid and marble?

chemistry

calculate the yield of CO2 if 30.g of C2H6 reacts with 14.0g of O2. Show work

Chemistry

Calculate the [H+] for: black coffee with a pH of 6.9 (Enter your answer as follows: 1.0E-2 for 0.010)

chemistry

How many mL of 0.100M HCl are needed to neutralize 49.0mL of 0.104M Ba(OH)2 solution?

Chemistry

What are the Six possible ratios for the equation for the formation of potassium chloride?

Chemistry

What are the Six possible ratios for the equation for the formation of potassium chloride?

chemistry

What is the final temperature of 1370 g of water, originally at 20.9°C, if it absorbs 47.6 kJ of heat?

Organic Chemistry

How do I make an IR Spectrum of C6H12S2 (Allyl Propyl Disulfide)

chemistry

the amount of K2Cr2O7 required to prepare 100ml of its 0.05N solution

chemistry

C3H8(g)+5O2(g)-->3CO2(g)+4H2O(l) what reactant is oxidized and which is reduced?

chemistry

What is the minimum volume of 10.0 M H2SO4 necessary to react completely with 16.2g of Na2CrO4?

chemistry

how many grams of carbon dioxide can be produced when 15.g of oxygen is reacted with 25.g of c2h2

chemistry

Balance the following redox reaction. MnO4 (aq) + Fe (s) --> Mn2+ (aq) +Fe2+ (aq)

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