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
AnnyKZ [126]
3 years ago
12

Find the volume of a gold ring that has a mass of 12.00 grams. The density of gold is 19.30 g/mL. The volume is

Chemistry
1 answer:
kozerog [31]3 years ago
3 0

Answer:

<h3>The answer is 0.622 mL</h3>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density}  \\

From the question

mass = 12 g

density = 19.30 g/mL

We have

volume =  \frac{12}{19.30}  \\  = 0.62176165...

We have the final answer as

<h3>0.622 mL</h3>

Hope this helps you

You might be interested in
the volume of a gas is 250mL at 340.0kPa pressure. what will the volume be when the pressure is reduced to 50.0kPa assuming the
ki77a [65]

Clearly volume will INCREASE almost sevenfold, as we would expect if we reduce the pressure. ... Assuming this is an ideal gas, and that the number of molecules *n* of this gas remains constant, and given that the temperature is also ... That is, in these conditions, pressure times volume is constant :


6 0
3 years ago
An unknown acid solution has PH 3.4. 66% of the acid is ionized. Whats the pka?
juin [17]

Answer:

pKa=3.58

Explanation:

Hello,

In this case, since the pH defines the concentration of hydrogen:

pH=-log([H^+])

[H^+]=10^{-pH}=10^{-3.4}=3.98x10^{-4}

And the percent ionization is:

\% \ ionization=\frac{[H^+]}{[HA]}*100\%

We compute the concentration of the acid, HA:

[HA]=\frac{[H^+]}{\% \ ionization}*100\%=\frac{3.98x10^{-4}}{66\%}  *100\%\\\\

[HA]=6.03x10^{-4}

Thus, the Ka is:

Ka=\frac{[H^+][A^-]}{[HA]}=\frac{3.98x10^{-4}*3.98x10^{-4}}{6.03x10^{-4}}\\  \\Ka=2.63x10^{-4}

So the pKa is:

pKa=-log(Ka)=-log(2.63x10^{-4})\\\\pKa=3.58

Regards.

5 0
2 years ago
What will happen to the salt when mixed to liquid?​
Pepsi [2]

Answer:

the salt dissolves in water because of covalent bonds.

Explanation:

mark me brainliest.

8 0
2 years ago
Read 2 more answers
In the simulation, open the Custom mode. The beaker will be filled to the 0.50 L mark with a neutral solution. Set the pH to 2.8
REY [17]

ur mom ur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur momur mom

3 0
3 years ago
A solution is made by dissolving 23.5 grams of glucose (C6H12O6) in 0.245 kilograms of water. If the molal freezing point consta
aalyn [17]

Answer:

- 0.99 °C ≅ - 1.0 °C.

Explanation:

  • We can solve this problem using the relation:

<em>ΔTf = (Kf)(m),</em>

where, ΔTf is the depression in the freezing point.

Kf is the molal freezing point depression constant of water = -1.86 °C/m,

m is the molality of the solution (m = moles of solute / kg of solvent = (23.5 g / 180.156 g/mol)/(0.245 kg) = 0.53 m.

<em>∴ ΔTf = (Kf)(m)</em> = (-1.86 °C/m)(0.53 m) =<em> - 0.99 °C ≅ - 1.0 °C.</em>

4 0
3 years ago
Other questions:
  • What happened to the arrangement and the speed of water molecules when liquid water turns into ice?
    6·2 answers
  • Which bond pair does not have a polar covalent bond? P – Cl O – H S – Cl H – Cl Cl – Cl
    15·1 answer
  • A 2.0 mol sample of ammonia is introduced into a 1.00 L container. At a certain temperature, the ammonia partially dissociates a
    11·1 answer
  • Why are models used for understanding cells
    14·1 answer
  • Determine the minimum work required by an air compressor. At the inlet the conditions are 150 kg/min, 125 kPa and 33 °C. At the
    15·1 answer
  • A permeation membrane separates an inlet air stream, F, (79 mol% N2, 21 mol% O2), into a permeate stream, M, and a reject stream
    9·1 answer
  • If a substance has a density of 1.345g / mL , how many grams would the substance weigh if the sample has a volume of 22.1 ml?
    15·1 answer
  • This is due tomorrow... :How can you tell the mass was conserved in a chemical reaction?
    5·1 answer
  • How many atoms are there in each of the following
    6·1 answer
  • An element emits light at a wavelength of 584 nm. What is the energy of the photon with that wavelength?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!