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
masya89 [10]
3 years ago
15

28.5 g of iron shot is added to a graduated cylinder containing 45.50 mL of water. The water level rises to the 49.10 mL mark. F

rom this information, calculate the density of iron.
HELLPPP CAN SOMEONE SOLVE THIS???
Chemistry
1 answer:
djyliett [7]3 years ago
7 0

Answer:

Density if iron shot = 7.92 g/ml (2 sig. figs.)

Explanation:

By definition, density is mass per unit volume. That is,

Density (D) = mass(m)/Volume(V)

mass(m) = 28.5g (given)

Volume(V, of iron shot) = 49.10ml - 45.5ml = 3.6ml

Substitutuing into D = m/V = 28.5g/3.6ml = 7.9166667 g/ml (calc.ans)

≅ 7.92 g/ml (2 sig. figs.)

Hope this helps. :-)

You might be interested in
A 10.0 g sample of propane, C3H8, was combusted in a constant-volume bomb calorimeter. The total heat capacity of the bomb calor
Liono4ka [1.6K]

Answer:

83ºC

Explanation:

A bomb calorimeter is an instrument used to measure the heat that release or absorb a particular reaction.

The reaction of combustion of propane is:

C₃H₈ +  5O₂ → 3 CO₂ + 4 H₂O ΔH = -2222kJ/mol

<em>1 mole of propane release 2222kJ</em>

10.0g of propane (Molar mass: 44.1g/mol).

10.0g ₓ (1mol/ 44.1g) = <em>0.227 moles of C₃H₈</em>

If 1 mole of propane release 2222kJ, 0.227moles will release (Release because molar heat is < 0):

0.227 moles of C₃H₈ ₓ (2222kJ / mol) = 504kJ.

Our calorimeter has a constant of 8.0kJ/ºC, that means if there are released 8.0kJ, the bomb calorimeter will increase its temperature in 1ºC. As there are released 504kJ:

504kJ ₓ (1ºC / 8.0kJ) = 63ºC will increase the temperature in the bomb calorimeter.

As initial temperature was 20ºC, final temperature will be:

<h2>83ºC</h2>
8 0
4 years ago
If someone said a particular metal had "hardness," what would she mean? A.it can't be bent easily B.it can't be stretched out ea
DedPeter [7]
It can’t be bent easily
6 0
3 years ago
Read 2 more answers
Can someone help me with this
Flura [38]

Answer:

I don't know how to get the answer sorry

Explanation:

db

6 0
3 years ago
Two or more substances combined but not chemically, are called what?
Misha Larkins [42]

Answer:

a mixture

Explanation:

Two or more substances combined chemically, are called a compound

7 0
3 years ago
Read 2 more answers
Can someone help me with the question in the image. if it is correct i will mark as brainliest
Juliette [100K]

Answer:

If I'm right, I beleive it is the last question-

I really hope this helps ^-^

6 0
3 years ago
Other questions:
  • Calculate δg o for each reaction using δg of values:(a) h2(g) + i2(s) → 2hi(g) kj (b) mno2(s) + 2co(g) → mn(s) + 2co2(g) kj (c)
    11·2 answers
  • 3,3-dibromo-4-methylhex-1-yne​
    6·1 answer
  • What is the physical state of water at 25 degree celsius
    6·2 answers
  • How many moles of MgCl2 will be produced from 65.0g of Mg(OH)2 , assuming HCl is available in excess
    6·1 answer
  • What is .000000850 in scientific notation
    9·1 answer
  • The copper(I) ion forms a chloride salt (CuCl) that has Ksp = 1.2 x 10-6. Copper(I) also forms a complex ion with Cl-:Cu+ (aq) +
    14·1 answer
  • Earthquakes are vibrations of Earth's crust. Which of the following is used to
    15·1 answer
  • HELP PLEASE IM GIVING BRAINLIST What is density?
    7·1 answer
  • Enter the balanced complete ionic equation for HCl(aq)+K2CO3(aq)→H2O(l)+CO2(g)+KCl(aq)
    9·1 answer
  • Determine the molarity of a solution that contains 7.5 mol of HCL in 350 mL of water
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!