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
kondor19780726 [428]
4 years ago
11

A 25.5g sample of a metal has a volume of 31.5ml what is the density of this metal

Chemistry
1 answer:
pentagon [3]4 years ago
7 0

To determine the density of the metal, the formula to be used is mass divided by volume.

So in our given, the mass is 25.5 g and the volume is 31.5 mL.

Convert the mL to L, since the density unit that we are going to use is g/L

31.5 mL x 0.001 L / 1 mL = 0.0315 L

So compute for the density:

<span>Density = 25.5g / 0.0315 L = 0.80325 g/L</span>

You might be interested in
Which of the following is an indicator of a chemical reaction?
Gemiola [76]

Answer:

option . D

Increase in temperature

is an indicator of a chemical reaction

hope it helps

3 0
3 years ago
Read 2 more answers
What is exothermic and endothermic? How do they differ?
BabaBlast [244]
Exothermic  releases energy(heat) from the system to the surrounding
endothermic takes energy (heat) from the surrounding to the system
6 0
3 years ago
A solution of sugar that contains the maximum amount of sugar that will dissolve is a ________ solution.
klio [65]

Answer:

A solution of sugar that contains the maximum amount of sugar that will dissolve is a saturated solution.

Explanation:

A saturated solution is a solution that contains as much solute as can dissolve in a given solvent at a given temperature.

for you the solute is sugar

3 0
3 years ago
When the water inside a living cell freezes, the ice crystals damage the cell. The wood frog is a unique creature that can survi
professor190 [17]
But i think its B but i need answer too
4 0
3 years ago
How many molecules of sodium oxide will be created if 275 grams of sodium reacts with excess oxygen?
DaniilM [7]

Answer:

  • <em>1.34 × 10²⁴ molecules</em>

Explanation:

To calculate the <em>number of molecules of sodium oxide that will be created if 275 grams of sodium reacts with excess oxygen</em>, use the chemical equation to calculate the number of moles and then multiply by Avogadro's number.

<u>1) Balanced chemical equation (given):</u>

  • 4Na + O₂ → 2Na₂O

<u>2) Mole ratio:</u>

  • 4 mol Na : 2 mol Na₂O

<u>3) Calculate the number of moles in 275 g  of Na:</u>

  • n = mass in grams / molar mass
  • mass of Na = 275 g
  • molar mass of Na₂O = 61.9789 g/mol

  • n = 275 g / 61.9789 g/mol = 4.437 mol of Na

<u>4) Set a proportion to find the number of moles of product (Na₂O):</u>

  • 2 mol Na₂O / 4 mol Na = x / 4.437 mol Na

  • x = 4.437 /  2 mol Na₂O = 2.2185 mol Na₂O

<u>5) Convert the number of moles to number of molecules:</u>

  • # molecules = n × 6.022 × 10²³ molecules/mol = 2.2185 mol × 6.022 × 10²³ molecules/mol = 1.34 × 10²⁴ molecules (rounded to 3 significant figures).
6 0
4 years ago
Other questions:
  • The first step is in oil is what
    6·1 answer
  • Why do two oxygen atoms form a double covalent bond?
    15·1 answer
  • Choose the appropriate volumetric device to use for each of the volume measuring applications.
    13·1 answer
  • The following ionization energies were found for an unknown element: -
    10·1 answer
  • A eraser has a mass of 4g and a volume of 2cm3 what is it’s density
    14·1 answer
  • Why do you need to understand safe procedures in the science classroom and laboratory?
    9·1 answer
  • Jeremiah pushed Anthony with a net force of 12 N. Anthony accelerated across the hall at 0.2 m/s2. What was Anthony’s mass?
    5·2 answers
  • Explain how atoms organize to create larger structures?
    14·1 answer
  • For which of the following reactions does Kc = Kp?
    12·1 answer
  • The figure shows the skeletal structure in line-angle (line-bond) mode of 2,5-dimethylhexa-1,4-diene. Identify the number of
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!