1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
drek231 [11]
4 years ago
6

A mixture contains 3.64g nacl, 2.87g nh4cl, and 4.13g of sio2. what is the percent by mass of nh4cl

Chemistry
1 answer:
Norma-Jean [14]4 years ago
8 0
<span>Total mass = 3.64 + 2.87 + 4.13 = 10.64 g Mass percent of NH4Cl = (mass of NH4Cl/ Total mass) x 100 = (2.87 g/10.64g) x 100 = 27.0 % mass of NH4Cl</span>
You might be interested in
(110.3 g) + (45.27 g) + (54.43 g)
Darina [25.2K]

Answer:

210 grams

Explanation:

just add them all up

7 0
3 years ago
Which structure is found in all eukaryotic cells
jeka57 [31]
Plasma Membrane, nucleus, and cytoplasm 
6 0
3 years ago
Read 2 more answers
What was rutherfords contribution to the structure of an atom
MrRissso [65]
The Nuclear Model-1909. Ernest Rutherford's great contribution to atomic theory was to show what happens to an element during radioactive decay. This enabled him to construct the first nuclear model of the atom, a cornerstone of present-day physics The Nuclear Model-1909.
6 0
3 years ago
Read 2 more answers
Aluminum reacts with oxygen to form aluminum oxide. Select the correct unbalanced skeleton equation for this reaction. A. Al(s)
Natasha2012 [34]

Answer:

D. Al(s) + O₂(g) → Al₂O₃(s)

Explanation:

Aluminum is a solid metal, so it is written as Al(s).

Oxygen is a diatomic gas, so we write this compound as O₂(g).

Aluminum oxide has the formula Al₂O₃ because in oxides the oxidation number of oxygen atom is -2 and for aluminum, the oxidation number is 3. Thus, we write this compound as Al₂O₃(s).

Now, we have to found the chemical equation in which the reactants (left side) are Al(s) and O₂(g) while the product (right side) is Al₂O₃(s). From the options, we can see that the correct is (D):

Al(s) + O₂(g) → Al₂O₃(s)

8 0
3 years ago
What is the molarity of 200. mL of solution containing 4.50 moles of ZnCl2?
MariettaO [177]

Answer:

Molarity of solution = 0.9 M

Explanation:

Given data:

Moles of ZnCl₂ = 4.50 mol

Volume of solution = 200 mL

Molarity of solution = ?

Solution:

Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.

Formula:

Molarity = number of moles of solute / L of solution

Now we will convert the volume in L.

200 mL×1 L/1000 mL = 0.2L

M = 4.50 mol / 0.2 L

M = 0.9 M

4 0
3 years ago
Other questions:
  • Which phrases accurately describe this rock? Check all that apply.
    10·1 answer
  • The hormone thyroxine is secreted by the thyroid gland and has the formula: C15H17NO4I4. How many milligrams of Iodine can be ex
    8·2 answers
  • You just calculated that the heat of fusion for chloromethane is 6400 J/mol. The heat of fusion for hydrogen is 120 J/mol. Which
    13·1 answer
  • 5.00 g of carbon were adiabatically burned to CO2 in a 2.00 kg copper calorimeter which contained 2.50 kg of water. The temperat
    7·1 answer
  • A sample of carbon-12 a mass of 6.00g.How many atoms of carbon-12 are in the sample?
    11·1 answer
  • Which sentence describes a tropical rainforest ?
    5·1 answer
  • What is the molarity of sodium ions in a solution prepared by diluting 250. mL of 0.550 M Na2SO4 to 1.25 L? (A) 0.110 M (C) 0.22
    10·1 answer
  • An ionic bond forms between what two types of atoms?
    6·1 answer
  • How many grams of H2SO4 do I need to use in order to produce 3.01 moles of water? consider the equation. _Ca(OH)2 + _H2SO4 = _Ca
    7·1 answer
  • 500.0 mL of a 0.455 M solution of LiBr is diluted to 700.0 mL. What is the new concentration of the solution?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!