chemistry! URGENT

60,827 results, page 65

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%

chemistry

Give the shapes of CH3, O3, SnCl3, BrF3, I3

chemistry

how many moles are present in 2.45 x 10²³ molecules CH₄?

chemistry

at STP , what is the volume of 7.08 mole of Nitrogen gas ?

chemistry

Balance redox reaction. Fe(s) + O2(g) + H2O(l)-->Fe2+(aq) +OH-

chemistry

how do I write the rate of the reaction for the following: Cl(g)+O3(g)-> ClO(g)+O2(g)

chemistry

How can Coulomb's law explain the distribution of electrons.

Chemistry

Why does the carotene elute from the column before the chlorophylls?

Chemistry

Why does the carotene elute from the column before the chlorophylls?

Chemistry

Why does the carotene elute from the column before the chlorophylls?

Chemistry

Why does the carotene elute from the column before the chlorophylls?

Chemistry

What is the percent by mass of NaHCO3 and KCl in the mixture.

chemistry

Calculate the pH of a saturated solution of Sr(OH)2. The Ksp for Sr(OH)2 is 3.2x10^-4.

Chemistry

What is the name of the substance with formula Cu(H2O)6SO4?

Chemistry

How do I get the answer to ?mass, 200 cm3volume, 6.843 g/ml=

Quick chemistry help

What is the precipitate color for Na3PO4+CaCl2?

chemistry

chemical formulae for naphthalene and benzoic acid

chemistry

why does HF have a boiling point of 19°c and H2O 100°c

Chemistry

calculate the density of 50.0 g of gold that occupies a volume of 2.59 mL.

Chemistry

what is the PH of a solution of .1 M NAN3 that disassociates into HN3

chemistry

How many kilocalories are required to produce 1.83mol of aluminum?

chemistry 30

Calculate the enthalpy of reaction for the combustion of ethene.

Chemistry

how to prepare 100.0 ml of 0.2 M solution of sodium hydroxide

Chemistry

Are acids or bases suppose to react with carbonates?

chemistry

Calculate the hydroxide ion concentration of a solution with pH = 8.25.

Chemistry

What is the empirical formula for a compound that is 1.67g Ce and 4.54g I?

chemistry

is acid rain homogeneous or heterogeneous mixture?

chemistry

I would love help on trying to start this problem?

biology/ chemistry

how do electrolytes affect the formation of micelles?

chemistry

what is the strongest intermolecular force in nitrogen trifluoride

Chemistry

How many grams of CO(g) are there in 67.0mL of the gas at 0.826atm and 30 ∘C?

chemistry

Calculate the volume occupied by 3moles of a gas at r.t.p

Chemistry

What intermolecular forces are responsible for neoprene's stretchiness?

chemistry

the complete electrolysis of 90 grams of water will yield

chemistry

What is the heat involved when 3.00 g of aluminum oxide is formed?

chemistry

Why do you add Sodium hydroxidein your reduction procedure

Chemistry

What is a balanced equation for a Base-Acid Titration?

chemistry

How many grams of H2 are needed to produce 12.22g of NH3?

chemistry

How many molecules (not moles) of NH3 are produced from 3.55×10−4g of H2?

Chemistry

C18H32O2 + 2H2 - C18H3602; oxidized or reduced?

chemistry

what is ion pair formation in regards to extractions

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