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
Contact [7]
3 years ago
12

How many grams of cuno3 will be required to make 1.00 l of 0.420 m solution?

Chemistry
1 answer:
7nadin3 [17]3 years ago
3 0

Answer:

The answer to your question is:  52.92 g of CuNO₃

Explanation:

Data

grams of CuNO₃ = ?

volume = 1 l

concentration = 0.420 M

MW of  CuNO₃ = 64 + 14 + 3(16) = 126 g

Formula

Molarity = moles / volume

moles = Molarity x volume

moles = 0.420 x 1

moles = 0.420 moles

                                    1 mol of CuNO₃  -------------------  126 g of CuNO₃

                                  0.420 moles CuNO₃ -------------    x

                                    x = (0.420 x 126) / 1

                                    x = 52.92 g of CuNO₃

You might be interested in
Please balance the equation, putting the correct coefficient in each box.
Mariulka [41]

Answer: Bi(OH)_3+3HNO_3\rightarrow 3H_2O+Bi(NO_3)_3

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balanced equation will be:

Bi(OH)_3+3HNO_3\rightarrow 3H_2O+Bi(NO_3)_3

5 0
3 years ago
Identify at least three control variables that could be used with this investigation: What temperature allows for bacterial grow
Over [174]

Answer:

Time allowed for incubation, size of the dish, the amount of light, amount of agar, the type of agar…etc

Explanation:

6 0
3 years ago
Read 2 more answers
Melatonin has the chemical formula C13H16N2O2. Less than 10 milligrams(0.01g) Convert the melatonin to moles
oee [108]

Answer: There are 0.000043 moles of melatonin.

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}

given mass = 10 mg = 0.01 g

molar mass of C_{13}H_{16}N_2O_2 = 232.28 g

{\text {moles of melatonin}}=\frac{0.01g}{232.28g/mol}=0.000043moles

Thus there are 0.000043 moles of melatonin

6 0
3 years ago
Which is a way to Express concentration of solution.?​
Nataliya [291]

Answer: concentration of solutions are expressed in various ways mol/L, mol/dm3, g/L etc

Explanation:

5 0
3 years ago
Read 2 more answers
The average strength of a hydrogen bond is approximately what percent of the average strength of a covalent bond?
lozanna [386]

<span>Hydrogen bonds are approximately 5% of the bond strength of covalent bonds, for example (C-C or C-H bonds).
Hydrogen bonds strength in water is approximately 20 kJ/mol, strenght of carbon-carbon bond is approximately 350 kJ/mol and strengh of carbon-hydrogen bond is approximately 340 kJ/mol.
20 kJ/350 kJ = 0,057 = 5,7 %.</span>

8 0
3 years ago
Other questions:
  • COg + 2H2g - CH3OHg. Given: 35g COg and 5.00g 2H2. How many molecules are in CH3OH?
    5·1 answer
  • What property of matter does not change even though the appearance may
    13·2 answers
  • Why does a solid change to liquid when heat is added?
    5·1 answer
  • Calculate the density of an object with a mass of 25g and a volume of 10ml
    7·1 answer
  • Which of the following is not a result when a change to an equilibrium system is applied? Increasing the rate of the forward rea
    8·2 answers
  • In the chemical equation H, O2 (aq) --&gt; H2O(1) + O2(g), the O2 is a
    6·1 answer
  • A gas has a volume of 350 ml at 45oC. If the volume changes to 400. ml, what is the new temperature in oC
    11·2 answers
  • Can someone explain to me what numbers are acidic, base, or neutral on a ph scale?
    10·1 answer
  • Which compounds were classified as organic compounds according to the early chemists
    7·1 answer
  • Which resource produces the cleanest energy?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!