Questions LLC
Login
or
Sign Up
Ask a New Question
Science
Chemistry
Calculate the total amount (in moles) of Ca and Mg present in a sample of water that required 12.86 ml of 0.0005M EDTA solution to completely complex them.
1 answer
moles = M x L.
You can
ask a new question
or
answer this question
.
Similar Questions
A 0.940g sample of barium chloride dehydrate is heated and 0.800g of anhydrous residue remains after cooling.
A. How many moles
Top answer:
A. (0.800g BaCl2) / (208.233g BaCl2/mol) = 0.00384 mol BaCl2 B. (0.940 g - 0.800 g) / (18.01532 g
Read more.
A sample of aluminum oxide, Al2O3(s), contains 8.29*10^25 total atoms. Calculate the amount in moles of aluminum oxide in the
Top answer:
To calculate the amount in moles of aluminum oxide, we need to first determine the number of formula
Read more.
A .326L container holds 0.146g of Ne and an unknown amount of Ar at 30C and the total pressure is 627 mmHg. Calculate the moles
Top answer:
T is 303 and not 308 K which means you need to recalculate pressure and n for Ne. Use PV = nRT You
Read more.
A .326L container holds 0.146g of Ne and an unknown amount of Ar at 30C and the total pressure is 627 mmHg. Calculate the moles
Top answer:
I get a similar answer but not the same. I obtained 0.00358 moles Ar.
Read more.
Hi, I am stuck on a couple questions in chemistry 11. The questions are
1. Calculate the number of moles of the anhydrous salt
Top answer:
I really don't understand your problem. You have all of the data you need to finish the problem. 1.
Read more.
Calculate the following:
(a) mass of water in the hydrate sample (g): (b) number of moles of water in the sample: (c) mass of
Top answer:
I must guess what you did since you didn't post it. I assume 56.396 = mass xble + salt -53.200 =
Read more.
The total acidity in water samples can be determined by neutralization with standard sodium hydroxide solution. What is the
Top answer:
It took 7.5 mL of 2.8 x 10^-3 M NaOH so that is M x L = moles HCl. You have that many moles H^+ in
Read more.
Calculate mole solute in solution?
I added an amount of an unknown sample to a solution. I found that the molality of the
Top answer:
molality = moles of solute/kilograms of solvent notice how the units cancel out to moles of solute:
Read more.
An experiment was carried out to determine the value of the equilibrium constant Kc for the reaction.
Total moles of Ag+ present
Top answer:
What's the reaction? I'm guessing at Ag^+ + 2NH3 ==> Ag(NH3)2^+ If that's the reaction my number is
Read more.
A sample of H2O contains 7.2 x 10 24 atoms. How many moles of water are in this sample?
Responses 6.02 moles 6.02 moles 11 moles
Top answer:
To determine the number of moles in a sample, you can use Avogadro's number, which states that there
Read more.
Related Questions
1. You have been given a sample of unknown molarity. Calculate the molarity of a solution which has been prepared by dissolving
A sample of propane, C3H8, contains 12.2 moles of carbon atoms. How many total moles of atoms does the sample contain?
A sample of propane C3H8 contains 13.5 moles of carbon atoms how many total moles of atoms does the sample contain?
1. You have been given a sample of unknown molarity. Calculate the molarity of a solution which has been prepared by dissolving
a 135-g sample of sea water is evaporated to dryness, leaving 4.73 g of solid residue (the salts formerly dissolved in the
A standard solution of sodium carbonate(NaCO3) is prepared by discovering 5.03g of Na2CO3 in water to give a volume of 250.0 ml
A sample of aluminium has a mass of 6.3g, calculate the number of moles of aluminium present
Which of the following explains why water is limited resource
1:water is present on earth in a fixed amount that does not change
The age of wine can be determined by measuring the trace amount of radioactive tritium, 3H, present in a sample. Tritium is
Calculate the amount of heat required to raise the temperature of a 39 g sample of water from 9 ∘C to 21 ∘C
