60,487 results, page 52
Calculate the empirical formula of Tylenol: C, 63.56%; H, 6.00%; N, 9.27%; O, 21.17%
How many grams of NH4Cl will dissolve at 50 degrees C?
How many moles are in 2.3 grams of oxygen gas.
Is the formation of C2H2 endothermic or exothermic?
What is the pH of a 0.052 Mole solution of HCl?
how many protons and electrons are in 7.4 grams of hydrogen?
Find the % ionization if the pH of a 0.10 mol/L solution is 4.5
What is the volume of 3.11×10 to the power 23. Molecules of NH3 at S.T.P
Which is more soluble in water, Cl2 or I2?
what is the concentration of 24.5g of Ca(NO3)2 in 244mL of water
What is the equilibrium constant for 2A + 3B (double arrow) =4C Is it (C)^c/ (A)^a (B)^b
What is the solubility of ZnCO3 at 25 o C in a buffer solution with a pH of 9.74?
What are the number of molecules in 16g of h2co3??
Which conducts better, BeCl MgCl2
How can I do an acrostic poem for the word REDOX?
Calculate the ph of a solution that is 0.157m HCI?
What is the oxidation state of chromium in cr2o7^-2
What is the oxidation number for each atom in NH4F? N=+3, H=-4, F=+1 N=-3, H=+1, F=-1*** N=+3, H+1, F=-1 N=-3, H=-1, F=+1
Write on the physical properties of benzene
How many electrons are present in 0.002 moles of O--?
a compound or solute will molecular mass 36?
a compound or solute with molecular mass 36?
What is the percent of aluminum in Al2(SO4)3? A. 15.8% B. 28.1% C. 56.7% D. 54.0% C?
calcuate the normality of 0.2M solution of h3p04 ?
How many ml of 8.00 M Na OH is required to neutralize 200 ml of 4.00 M HCl?
The Ka of an acid is 1.3 x 10–7. Based on the Ka and its relationship with Kw, what is the value of Kb?
Why reversible reaction never complete
Calculate the normality of 1.5M sulphuric acid
What is the volume in L of 34.0g of Ammonia (NH4) at STP?
Decomposition of nitrogen pentoxide in ccl4
Decomposition of nitrogen pentoxide in ccl4
How many molecules are in 5.2L of carbon dioxide gas?
prepare 0.2M phospate buffer of pH 5.7
What is the concentration of a monoprotic weak Acid if its pH is 5.50 and its Ka= 5.7 x 10^-10?
How do you determine the polarity of a substance? Example?
why is helium considered a noble gas?
how many representative particles are there in 5 mole h2o
why is glass called a supercooled liquid?
how many moles of fe are present in 30g of rust?
which of following show cistrans isomerism?
How to determine saturation point of k2Cr2O7?
How do you separate this into ions Na2B4O7
What is the osmotic pressure of blood plasma at 37°c
How many grams of fe is present in 30g of FeSO4
6 cm/sec to mph i got 9.664mph
Lewis sit structure of CH3OH
How many moles of ions are in 1.0 mol NH4Cl?
The percentage of nitrogen in magnesium nitride is.?
What is the total no. Of atoms present in 25.0 mg of camphor
Calculate the mass in grams of 2.5*10^20 NO molecules
How we make 0.02ppm solution in 25ml?
A Solution Has A PH Of 3.4.What Is Its Hydrogen Ion Concentration?
Zn(s)+HCl(aq)--> ZnCl2(aq)+H2(g) net ionic??
What is the wavelength of radiation whose frequency is 5.93 x 10^14 s-1
What is the solvent in70% of alchol solution?
How to prepare 250ml of 2.5m solution of HCL
Formula of (ch3ch2)2chch2ch(ch3)2
complete and balance NaHCO3 (aq) + H2SO4 (aq)
Calculate q when 22.0 g of water is heated from 25.0°C to 100.0°C.
Solubility of PbCl2 in brine solutions
how many chloride ions are in 0.28 mol MgCl2?
How do i prepare KH2PO4-KOH buffer 0.2 M of pH 7.4?
Given 1 cc of Zinc and 1 cc of Cr What is the mass difference?
Which is more ionic LiF or NaF and why
What is the value of [h3o] in a solution where [oh]=4.20x10^-6
Is HOET associated with E1 or E2? I think it is E2.
h2po4(aq) + co34(aq) hco3 (aq) + hpo42 (aq)
How to find Oxidation Numbers of any component
How many aluminum atoms are there in 15.0mg of Al2O3?
How much Zn is mixed with 2HCl = ZnCl + H2 ?
density of sand =3.00g/cm3?
determine d no of moles in d following samples 2.5*10
Determine the [OH^-] of a solution that is 0.145 M in CO3^2-.
Iron+CON Hydrochloric acid =?
How is sulphur manufactured in a large scale
What will burning of .3 liters of C2H2 produce?
How many grams of AlCl3 are produced when 53.0 g of Al reacts?
Calculate the pH of HCL if you have 10.0g in 5.0L of solution
Compunds formed by NH4+ and NO3-
Can rate of law be a decimal??
How many representative particles are in 2.5 mol H2O2?
How to rearrange the given equation for Ao: ln (Ao/A) = k*t
How to rearrange the given equation for A: ln (Ao/A) = k*t
how many moles of he atoms are there in 0.02g of he?
Identify the chemical reactants in ZnCl2(aq)+H2(g)?
How to calculate the percentage of chlorine isotopes
What is the gas produced when lime is heated?
. What is the pH of a solution in which 15 mL of 0.10 M NaOH is added to 25 mL of 0.10 M HCl?
what is the oxidation number of Carbon in C6H12? thank you!
how many sigma and pi bonds in hooc-cooh
How many g of KCl are need to make 2.5 L of a 10% (w/v) solution?
how can I calculate the limiting reactor in a reaction?
What is the equilibrium constant for the following reaction? 3A + 2B <---> 2C
How would I balance Al2 + I2>ALI3
Calculate the ZnCO3 in a buffer solution with a pH of 9.83
4Fe2(S)+ 11H2O(g) to give 2Fe2O2
What is the molar mass of feso4 . 7h2o
What are the changes associated with a chemical reaction?
Kg/m^2 is the unit of pressure how i prove it. Please help me.
how to calculate the oxidation state for 'cr' in K2CRO4 ?