60,791 results, page 51
what is the mass of oxygen in a 5.6 g sample of Al(NO3)3.
How do the indicators work , by changing color ?
What is 100mL of water + 45.00g of ice?
Identify the functional groups in menthol
Discuss how you would separate Fe+3 from Ca2+
How many grams are in 2.5 moles of magnesium hydroxide
Can you make a 2 carbon molecule of Ketone?
What is the numerical value of one mole?
define pressure how many mm Hg are in 875.1kPa
How many atoms of nitrogen are in 3.00g of N2O5?
1/10^-8 in scientific notation. I need help please.
What is the pH of a 100g/l solution of potassium cyanide?
How many moles of Ca(OH)2 are in 4.10 kg of Ca(OH)2? Answer in units of mol
V1= 38.8 n1= 1.60*10^-3 V2= 49.9 n2= ? How do we solve for n2 using avogadro's law?
What is the correct formula for calcium nitrate
How do we use 2 indicators to confirm the pH of a solution?
how many moles of HCL are contained in 34.7 mL of 8.00 M solution ?
What is the molarity of 35.0 of NaCl in 125 mL of water?
263 mL ethanol to its mass in grams
How many grams of O2 are contained in a 25.0L sample at 5.20 atm and 28.0C?
how many moles of Kl are present in 500 ml of a 0.2 M solution?
what is the molality of 18 g NaCl in 200 g of H2O?
What is the pH of a solution with [H3O+] = 1 x 10-9 M? My answer is pH=9. is that correct
what wil be the molarity if it increases from 20 c to 100 c?
grams of potassium permanganate are in 2.58 moles i don't get it ? help
Can somebody please answer my question.
Calculate the number of moles in 74.1 g Pb(C2H3O2)2.
a radioisotope is called a tracer when it is used to
What are some cons of becoming a pharmacologist?
What is the address of the 11 th electron of magnesium? And how do you determine this?
How to prepare 250.0 mL of 0.076M NaOH?
Outline the prepartion of 2-chlorobutane from an alcohol?
An equilibrium is dynamic. true or false
2) At 298K, what are the molarities of pure water?
What is the enthalpy change when 25 g's of PCl5 are decomposed /\ H= 90
calculate the density of NH3 at S650mm of Hg
How many grams of carbon are in 2.42 moles of C2H6
WHAT???? which of these are electrolytes?? CH3CH2OCH2OH PCl3 Na2CO3 O2
Calculate the pOH of a 0.410 M Ba(OH) solution.
How many kilocalories are required to produce 12.7g of aluminum?
Find the Density of xenon of STP
why gasoline wouldn't dissolve in water ?
Calculate the mass of 5.35 mol of iodine
what's the lewis dot diagram for methanol?
How to prepare 14M Sulfuric acid
How many oxygen atoms are in 6Al (SO4)3
How many mL of HCl solution are required to change pH from 2.67 to 9.25?
7.5 gm of chromium and 7.5 grams oxygen yield
who created the mcilvaine buffer system?
Why can't milk of magnesia (Mg(OH)2), act as a buffer?
calculate the density of NH3 gas at s.t.p.
d(g)--->3/2 e(g)+5/2 f(g) when e increases by .25 mol/l*s how fast is f increasing
How does a pH of a buffer solution go outside of its range?
What is the oxidation number of chlorine in Al(ClO4)3?
estimate the boiling point of Pcl3
calculate the PH of a buffered solution of HF and F (Pka of HF is 3.2)
How do you separate oxygen and methane gases?
A|A+3(0.1)||B+2(0.01m)|B GIVEN E°A|A+3=0.75v E°B|B+2=0.45v
What mass of copper will be deposited by a current of 7.89?
how many significant figures are in the measurement 0.002 ml? 2??
What is the mass of a 4 kg object, A. On the earth (g=-10 m/s/s) B. On the moon (g=-2 m/s/s)
What intermolecular forces are present in CSH2??
The molar volume of an ideal gas is
how many hao's exhibited by S16? my answer is 4?
What are some errors that can be made in colorimetry?
HCOOH + CaCO3 will give what (what are the products)
If there are 5,280 ft=1.00 mile ,how many miles are in 50,000 ft?
I want to make 10 ml solution of 80% NaOH and 20% KOH
What is the mass of 0.0137 mol of aspirin?
How many oxygen atoms are in 3.90 g of quartz?
0.00267m= how many nm? please show me how to set this up. thanks!
How many kJ is released when 3.4 mol of water is frozen?
would NBr3O be polar or nonpolar?
average atomic mass of isotopes
8.00 times10*19 molecules H2O to grams
How many atoms are in 448 grams of carbon?
What is the mass in grams of Br in 8.53 moles of FeBr5?
find the# of molecules in 5.3 moles of h20
give products of HgCl2 + KSO4
calculate the molar concentration of 0.1 " AgNO3
How many moles of platinum would be in 10.0 g of this metal?
Name a lustrous non metal?
Can a substance,that cannot be electrolysed,conduct electricity?Why?
what is the pH of .001M solution of acid (pKa=3)
How many grams of drug X are in 10 mL of a 1:200 solution of X?
Why is it important to not let the wooden split burn ?
At what ph will Al(OH)3 begin to precipitate from a .10 M solution of AlCl3?
What is the bond enthalpy of N2(g)+2H2(g) --> N2H4(g)?
How many oxygen atoms are there in 0.018 mg of H2O?
What is the mass of an atom's nucleus called?
How many kilojoules are absorbed when 318 g of Ca(OH)2 reacts?
name three characteristics of nonmetals
What is the pH of a 0.5 M solution of NaHCO3? Kb = 2.4x10-8 (base)
calculate the pH of 5M aqueous ammonia. Given kb=1.8 x 10^-5
What is the chemical formula for coconut oil?
What is the Lewis structure for salicylic acid ?
how many molecules are present in a 750 ml of C6H12O6
How to solve this problem in counting atoms 2 pb(CN)2
Would copper (II) phosphate be nonpolar?
Explain the trends in the solubility of water.