chemistry! URGENT

59,905 results, page 64

chemistry

how are buckeyballs,diamond, and graphite similar? how are they different?

Chemistry

What is the percent KCL by mass in a 3.00 molal solution?

Chemistry

what is the mass in grams of one molecule of water?

CHEMISTRY

What is the mass in grams of one Mole of water?

chemistry

Cabbage Juice Titration Lab connexus

Chemistry

explain equilibrium in terms of the collision theory

Chemistry

if a glass of ice water is at equilibrium, what is its temperature?

Chemistry 2

What is the solubility of silver chromate in pure water

chemistry

What are strongest intermolecular force in hydrogen iodide ?

Chemistry 12

what are the sources of error in preparing ester lab?

Chemistry

Calculate the molarity of 17.g of NaCl in 881 ml of solution

CHEMISTRY HELP !!!!

find kb or ka value for ZnCl2 show work! Thanks!

Chemistry

What is the activity of a 18.9 μCi sample of carbon-14 in becquerels?

Chemistry

The separate suspended solid from a solution , we may use .......

Chemistry

If 2.5 g of NaOH is dissolved in 253 mL of water, what is the pH of the solution?

chemistry

How much energy is needed to melt 25.4 grams od I2?

Chemistry

Calculate empirical formula C=41.7%,H=6.2%,N=19.3%, and O=33.1% Thanks. any help at all will be awesome!

Chemistry

What is the de Broglie wavelength of an electron traveling at 1.26×105m/s ?

Chemistry

dose the gasoline react with HCL 28%? if OK, what is its equation? Thanks

chemistry

what is the boiling point of 0.212 m lactose in water?

chemistry

what are three examples of a hypothesis? Or at least one....

chemistry

if 7 moles O2 are used, houch energy is produced?

Chemistry

How many moles of H2O are in 254 milligrams of water?

Chemistry

For ionic compound properties, what is the solubiity in hexane

CHEMISTRY HELP !!!!

what is the formula for dicyanobis (ethylenediamine) zirconium (IV) nitrate? Thanks!!!

chemistry

A cylinder contains 40 g of HE, 56 g of N2, and 40 g of Ar. How many moles of each gas are in the mixture?

science

can u suggest 5 advantages and 5 disadvantages of diffusion in chemistry

chemistry

What is the pH of a 0.001 M solution of acetylsalicylic acid (aspirin) (Ka 3.0 x 10-4)?

chemistry

What pressure in kpa is exerted by 94.6 g CO2 at 57°C in 0.750 dm 3

Chemistry

What is the hybrid ization? SP 1,2,3 What is #sigma and #pi? Thank you so much for your help!! 😄

Chemistry

Find the number of moles of particles for NaCl

chemistry

What are the differences between cis- and trans-isomers?

Chemistry

what is the pH solution in which 15 mL of 0.10 M NaOH has been added to 25 mL of 0.10 M HCl

chemistry

calculate the wt. of 6.022x 10^23 formula units of CaCO3

chemistry

ph of 6.10mL of 1.20M HCl diluted to 0.560L .

chemistry

express the following in exponential notation : (a) 0.0030

chemistry

Calculate the number of atoms in 3mol helium

chemistry

calculate the concentration of ammonium nitrate solution.

Chemistry

Why should you use only clean glassware?

chemistry

Ethanol glycol has a density of 1.11 g/cm^3. What is the volume in L of 4.1 kg of this liquid?

Chemistry

Calculate the percentage by mass for Carbon in C2H2

Chemistry

Calculate the percentage by mass for Carbon in C2H2

chemistry

What is the approximate Cl–Ca–F bond angle in the following molecule?

Chemistry

What are the orbital used in the formation of [COCL4]^2- ?explain this..

Chemistry

Why Mg2+ ion has smaller radius than Mg atom?

organic chemistry

or perhaps comparable over the counter?

College Chemistry

how many liters of ethanol contain 1.5 kg of ethonal?

AP Chemistry

Form 300 mL of 0.25 M Copper 2 sulfate pentahydrate

chemistry of solutions

NaI(aq)+Hg2(C2H3O2)2(aq)→

chemistry

230Th+He____223Po+2 2H+----- please complete this equation

chemistry

The density of (Hg) is 13.53 g/mL. How many liters will 4.2x10^21 atoms of Hg occupy?

CHEMISTRY

How does hydrogen bonding in water affects Density?

chemistry

Experimental Molar Ratio of Copper in CuxOy

chemistry

what is the final M solution prepared by diluting 5.0 mL of 6.0 M HCl to 60.0 mL

chemistry

Describe how to make 450mL of a 1.15% solution of CuSO4

chemistry

s shell never forms pi bonds ,right?

Chemistry

how many grams of NH3 can be produced from 4.35moles of N2 and excess H2

Chemistry

Chemical reaction for converting polythene to ethanol

chemistry

which unit is used to express the pressure of gas?

Chemistry

1/10e-8 in scientific notation. How do I solve this please.

chemistry

1/0.000015 in scientific notation. Please explain how to do this.

chemistry

How many Milliliters of 3.50 M HCl (aq)are required to react 5.75g of Zn(s)?

chemistry

Not sure how to complete this chemical reaction: Li + Fe(NO3)3 --->

Chemistry

what are the simplest molecules to synthesize a n,n-dimethyl-2-methylpropanamine

Chemistry

what are the simplest molecules to synthesize a n,n-dimethyl-2-methylpropanamine

Chemistry

What is the density (in mg/mL) of a H2S gas at 12.9 atm and 137 K?

Chemistry

What would cause the molecules of gas to get closer together?

chemistry

a solution consisting of 1.6M NaNO3 and 1.0M of Na(NO3)2 please help

chemistry

How much work is done when a 175g tomato is lifted 14.7m?

chemistry

how does one find out the moles of NaCl?

Chemistry

what does the Lewis Dot Structure of Sr(CN)2 look like?

Chemistry

In an aqueous solution the [OH–] is 2.0 x 10–6 M. What is the [H3O+]? Question 17 options: 1.0 x 10–7 M 2.0 x 10–6 M 1.0 x 10–8 M 5.0 x 10–9M

AP chemistry

How do you balance ZnCO3 +O2 yields ZnO + CO2?

chemistry

Find the percentage of water in Na2CO3*2H2O?

chemistry

3 moles C6H12O6 in 100 ml equals what molarity?

chemistry

calculate the molarity of a g NaCl in 250 ml solution.

chemistry

3moles KI in 500 g of H2O equals what molality?

chemistry

how many moles of BaCl2 are in 300 g of H2O if the molality is 0.2 m?

Chemistry

Calculate Delta H for the following equation: Zn(s) + 2H+(aq) = Zn2+(aq) + H2(g)

Chemistry

Chemistrywhat is the weight of 1 atom of H in gram (at.wt Of h = 1.008) ?

Chemistry

Show how to calculate the molarity of 45 g of hcl in 1.5 L of water

chemistry

How many bonds can each atom make without hybridization? B,N, and O

chemistry

How many grams of CO(g) are in 0.944 L of the gas at 2.26 atm and 257. K?

chemistry

What is the mass of 4.3 × 10 to the power of15 atoms of nickel (Ni)?

Chemistry

How many molecules are in 0.923 mol of selenium tetrabromide?

chemistry

how many moles of solute are contained in 18.5ml 2.5m CaCL2

chemistry

is finding the molality and molarity the same concept

chemistry(solutions)

What is the % w/v of 13.2 g of salt dissolved in 264 mL of solvent?

chemistry

Can someone show me how to make a smoke bomb?

Chemistry

The density of 18% HCl is 1.09g/ml. Calculate its molarity (M).

chemistry

When 40.2g of kc103 is heated what quantity of kc1 is produced

Chemistry

What is the percent by mass of hydrogen in aspirin C2H8O4?

Chemistry

What is the mass of 1.00 mol of sodium hydrogen carbonate?

Chemistry

find the mass in grams of 1.40x10^23 molecules of n2

chemistry

how many HCl needed to dissolve 1 grams of Al2O3.

chemistry Drbobz222

How do i convert mols CaCl2 to AgCl

chemistry

How to prepare 0.2M of NaOH in 250ml volumetric flask???

Chemistry

Why is the carbonate solution boiled before titrating?

chemistry

How do gas particles exert pressure on their container?

Chemistry

I would i calculate the E.F of nitrogen 21% hydrogen 7.48% chlorine 66.35%

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