Questions LLC
Login
or
Sign Up
Ask a New Question
Categories
Chemistry 11
Questions
A hydrate of zinc chlorate, Zn(ClO3)2 .xH2O(s) contains 21.5% zinc by mass. Find the value of x.
What I've done: Molar mass of
6 answers
asked by
Anonymous
8,895 views
A 5.0 g sample of Cu(NO3)2-nH20 is heated, and 3.9 g of the anhydrous salt remains. What is the value of n?
I got as far as
7 answers
asked by
Rona
9,974 views
When HCl reacts with Na2CO3 and H2O, what is created? More specifically, what are the crystals that remain?
The questions that I
2 answers
asked by
Ria
532 views
Which is reactant and product ?
1) C(s)+O2(g)--> CO2 (g) 2) N2(g)+ O2(g) --> 2NO(g)
3 answers
asked by
Anonymous
459 views
Carbon monoxide gas reacts with oxygen gas to form carbon dioxide gas acooridng to the following equation:
2CO(g)+O2(g)--> 2
2 answers
asked by
Alz
829 views
12.0 g of carbon reacts with 32.0 g of oxygen to form 44.0 g of Co2. if we react 20.0 g of oxygen with 20.0 g of carbon,how many
2 answers
asked by
priya
648 views
Calculate the number of moles of Carbon in 27.6g C4H9OH.
2 answers
asked by
Lorraine
500 views
the concentration of HCl, a strong acid is 0.500 M. if 20.0 ml HCl is needed to titrate 40.0 ml of NaOH, what is the
2 answers
asked by
Jessie
886 views
a gas has an empirical formula C6H7O5. When put in a 50mL bulb at 120 degrees celcius and 120kPa (pressure) it's mass is
1 answer
asked by
Anna
335 views
calculate the mass of impure KOH needed to make up 1.20 L of 0.60 mol/L KOH(aq)? Assume the impure KOH is 84% KOH by mass and
2 answers
asked by
LG
508 views
Find the percent composition of a compound containing sodium and chlorine if 24.34g of the compound contains 13.45g of sodium.
My
4 answers
asked by
Christina
669 views
So I did a lab determining the chemical formula of a hydrate. We had to find the molecular formula of a hydrate of copper (2)
4 answers
asked by
Katherine
1,978 views
What mass of iron can be obtained from 500.0g of Fe3O4?
I am having a hard time getting started on this question. I think I need
2 answers
asked by
Karen Zhang
495 views
Mass of oxygen needed to react completely with 64.3 g ammonia?
2 answers
asked by
Aiga
997 views
What is the concentration of the solution formed when zinc metal is reacted with 950.0 cm3 of 1.25 M hydrochloric acid? What is
3 answers
asked by
Dawn
519 views
What volume of 2.33 M of sodium hydroxide solution is needed to fully neutralize 1000.0 cm3 of 17.6 M hydrobromic acid?
1 answer
asked by
Dawn
483 views
What is the total ionic equation and net ionic equation of ammonium sulphide solution added to gold nitrate solution?
2 answers
asked by
Dawn
851 views
In 300.0 mL of a 0.50M MgCl2 solution, what would be the concentration of the chloride ions?
2 answers
asked by
Catherine
471 views
What volume of a 0.400 M stock solution of potassium dichromate is required to produce 200.0 mL of a 0.100 M solution?
1 answer
asked by
Lucille
324 views