60,616 results, page 60
Calculate the molality of a 10% H3PO4 solution in water.
How do i find the weight % of sulfate if I am given the mass?
what are the three modes of expression of percentage concentration?
The pH of 6.0 M KOH is 13.78. What is the hydrogen ion concentration of this solution
What is the origin of homochirality in amino acids and sugars?
How many kilocalories are released by freezing 4.6 moles of H20?
What is the lewis dot structure of C2H5F?
Given 6.00 L of N2 at -25 degrees C. Find Vol in L at 100K
What is the molar concentration of the standard KMn04 soultion?
how would I draw the expanded formula for isopropylcyclopropane?
Calculate the volume of 1.60 in milliliters that contains 6.00 of solute.
Hi everyone, Why are metals more reactive in acids? Thanks
What does it mean when we say that KHC8H4O4 is not hygroscopic ? thank for helping~
in saturated sugar solutions what is the solute? what is the solvent?
What is the mass of a ball with a velocity of 35.1 m/s and a wavelength of 8.92 x 10^-34 m
How many molecules (not moles) of NH3 are produced from 8.92×10−4 g of H2?
What is the molecular weight of 30% aqueous nitric acid?
Can you help me arrange P,Mg,N,Br,K in order of incrasing metallic character. Thank you.
how many mL of 0.15 M NaOH solution are required to neutralize 35.00 mL of 0.22 M HCl
what is the concentration of the hydroxide ion in an acidic solution?
what is the pH of a solution that has a H+ concentration equal to 1.76 x 10-5M? I got 4.75 is this correct
what is the ph of a solution that has [H] = 0.0045 can you show steps pls
How many moles of gas would be in 2.0 L of oxygen at STP?
Does helium have a smaller volume than hydrogen?
How many liters of base will neutralize 1 liter of acid?
Condensation is considered an exothermic process is this true?
Which electron configuration best represents bromine?
why is NO equal to nitrogen oxide isn't the charge of N ion +3?
Balancing redox equations reactants: Cu, NO3
how many moles of o2 are needed to produce 3.91 mol fe2o3
how many half lives will it take for 50 g of 99Tc to decay to 6.25 g?
A 0.39 M solution of a weak acid is 3.0% dissociated. Calculate Ka.
Calculate the pH of a 0.053 M (C2H5)2NH solution (Kb = 1.3 10-3).
Calculate the pH of a 0.063 M (C2H5)2NH solution (Kb = 1.3 10-3).
how do i change 2866.0 J to kJ/mol? can someone please help me?
2. What is the density of propene gas measured at 2.5 atm and 47 C?
Air dry weight of MgNH4Po4 * 6 H2O
What is the wavelength of a 2500 kg truck traveling at a rate of 70 km/h?
how would you prepare 300 ml of a 10% CaCl2 solution (w/w)?
What is the electron-domain (charge-cloud) geometry of
Which is a polar covalent bond? PbCl2 or CS2?
20 degrees C is 6 g Cu So4/25 g H2O is this saturated or unsaturated?
The pH of an HCl solution is found to be 1.74. Therefore the [H3O+] is:
You have a 0.0825 M solution of HCl. You expect the pH to be
Phenolphthalein turns __________ when the solution is basic.
What is the mass percent oxygen in the compound NaNO3?
pH is defined as 10^-log [H3O+] True or False
How many grams of na cl are required to make 500ml of a 0.65 percent w/v
What is the Lewis dot diagram for C2Cl2?
if 2.2g of h2 and 1.25g of n2 are present, how many grams of nh3 will be produced
What mass of ZnCl2 is needed to make 4 L of 1.8 M solution?
who made (arranged) the modern periodic table?
How could I determine if a white liquid contained lactose?
What are the steps of protein synthesis starting with DNA?
how can you tell if a reactant is being oxidized or reduced
how can you tell if a reactant is being oxidized or reduced
Is this reaction exothermic or endothermic? Fe(NO3)3+ NaSCN
liters in 2.39x10^23 molecules of nitrogen triiodide
what is some background on the ideal gas constant R
does caco3 can easily pick up moisture from the surroundings?
find Equimolar ratio of HClO2 & NaOH
Why is bond energy defined only for gases?
How do you calculate the mass, in amu of 2287 atoms of Li
Why does it take more energy to remove a electron from Al+ than from Al?
What is the mass of 4.54 10-2 moles of zinc chloride (ZnCl2)?
Calculate the enthalpy change at 300kalven for the reaction?
what is the procedure that is used to find actual yield?
What is the formula for Celsius and Kelvin scales for temperature?
If 50.0 g of Ba(CN)2 reacts to produce 12.9 g of HCN, what is the percent yield?
Calculate the number of moles in 35.7 grams of Na3PO3
How many moles of atoms are in one mole of AlPO4?
how many significant figures does the sum of 8.520 the 2.7 contain?
why are the atoms in metallic bonds positively charged?
What happens to the valence electrons in metallic bonds?
What is the energy of a mole of UV photons having a wavelength of 11 nm?
In formula for where ferenheit and celsius converge (T = T x 9/5 +32); what is the logic that T x 9/5 = T + T = 4/5?
Benzene burns with intense smoky flame,this is b/c ?
How many grams of CO2 are formed when 32 g of O2 reacts with 23 g of C2H5OH?
which is more soluble in water: cyclohexane or glucose?
Determine the boiling point of water at 698.5 mm Hg.
what is the heaviest element with a single letter symbol?
What is the pH of a 0.01M solution of arginine that has a net charge of -.65?
What would happen if O2 were added to N2(g) + O2(g) 2NO(g) at equilibrium?
1/2.165 = sqrt x/131.29. I am not sure how to solve for x.
Indicate which of the following quantum numbers are unacceptable: (a)(1,2,0,1/2) (b) (3,2,0,1/2) (c)(3,2,2,1) (d) (4,3,2,-1/2)
What happens to the NH4+ and Cl] ions when they enter the water
how many grams are contained in 500.g of a 25% solution of H2SO4?
how many moles of oxygen are required for the combustion of 25.5 g of magnesium
203.77miles/sec is converted to cm/nsec
what did amedeo avogadro contribute to the atomic theory?
is conductivity a physical or chemical property
At which temperature is NaCl more soluble in water, 0°C or 90°C? 0°C 90°C
A detergent solution has a pH of 11.63 at 25°C. What is the hydroxide-ion [OH-] concentration?
How do you draw a lewis dot structure of s3o
what are three common ores from which copper can be extracted
A Solute That Removes Hydrogen Ions from Solution
What compounds can be formed by the reaction of K2SO4 and BaCI2?
calculate the pH of 20.00mL of 2.00 M HCl diluted to 0.500 L
what isw the density of N2O,a gas at STP?
How do you balance a chemical reaction word equation?!