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
Tju [1.3M]
3 years ago
13

A piece of unknown metal with mass 68.6 g is heated to an initial temperture of 100°C and dropped in 84 g of water (with an init

ial temperture of 22°C) in a calorimeter. The final temperture of the system is 52.1°C. The specific heat of water is 4.184 J/g*°C. What is the specific heat of the metal?
A. 0.171
B. 0.343
C. 1.717
D. 3.433
Chemistry
1 answer:
SIZIF [17.4K]3 years ago
8 0
It should be, C. 1.717
You might be interested in
Part 1. A chemist reacted 15.0 liters of F2 gas with NaCl in the laboratory to form Cl2 and NaF. Use the ideal gas law equation
xeze [42]

Answer:

113 g NaCl

Explanation:

The Ideal Gas Law equation is:

PV = nRT

In this equation,

    > P = pressure (atm)

    > V = volume (L)

    > n = number of moles

    > R = 8.314 (constant)

    > T = temperature (K)

The given values all have to due with the conditions fo F₂. You have been given values for all of the variables but moles F₂. Therefore, to find moles F₂, plug each of the values into the Ideal Gas Law equation and simplify.

(1.50 atm)(15.0 L) = n(8.314)(280. K)

2250 = n(2327.92)

0.967 moles F₂ = n

Using the Ideal Gas Law, we determined that the moles of F₂ is 0.967 moles. Now, to find the mass of NaCl that can react with F₂, you need to (1) convert moles F₂ to moles NaCl (via the mole-to-mole ratio using the reaction coefficients) and then (2) convert moles NaCl to grams NaCl (via molar mass from periodic table). It is important to arrange the ratios/conversions in a way that allows for the cancellation of units (the desired unit should be in the numerator).

1 F₂ + 2 NaCl ---> Cl₂ + 2NaF

Molar Mass (NaCl): 22.99 g/mol + 35.45 g/mol

Molar Mass (NaCl): 58.44 g/mol

0.967 moles F₂        2 moles NaCl             58.44 g
----------------------  x  -----------------------  x  -----------------------  =  113 g NaCl
                                     1 mole F₂              1 mole NaCl

4 0
1 year ago
After reviewing the results of your science fair project, you state that water has increased the growth of fungi. This is a-
djverab [1.8K]
D hypothesis is the answer
5 0
3 years ago
A small file or organization use a payroll program for calculating staff wages each month each employee has a unique payroll num
Rama09 [41]

Answer:

the company is now aarav and its CEO of samruddhi and is the CEO in meeting with holika and will come in to help with holika as brainlyiest as the company's chief financial adviser to solve di problems

Explanation:

it was the most common thing that happened in my first pregnancy in my first year and I m and the other girl Bo.. were pretty good vibes for the last day of samruddhi but they are still very much a many years after I was knowing that

8 0
3 years ago
Which part of the flower produces seeds? (992 points)
Nata [24]

Answer:

The pistil, B.

Explanation:

The seeds are formed from the ovule which is contained in the ovary; all in the base, the pistil.

5 0
2 years ago
What are the laws of Newton?
Tanzania [10]

Answer:

an object that is at rest will stay at rest inless a force acts upon it.

An oject that is in motion will not change its velocity unless a force acts upon it.

4 0
2 years ago
Read 2 more answers
Other questions:
  • An experiment produced 0.10 g CO2, with a volume of 0.056 L at STP. If the accepted density of CO2 at STP is 1.96 g/L, what is t
    7·2 answers
  • Which organelle below is the "brain" or control center for a cell?
    5·2 answers
  • a cylinder container is filled with air. its radius is 6cm and its height is 3.5cm. what is the volume of the air inside?
    9·1 answer
  • Explain how tectonic plates move relative to one another at a transform plate boundary
    11·1 answer
  • Help please :)<br> Describe two characteristics that protists have that make them eukaryotes.
    13·1 answer
  • A 10 wheeler truck collides with a car. Who is more likely to be hurt: the driver of the car or the driver of the truck? please
    12·2 answers
  • How much energy (in J) is lost when a sample of iron with a mass of 28.3 g cools from 66.0 degrees celsius to 24.0 degrees celsi
    14·1 answer
  • O<br> The ester functional group is symbolized as ||<br> R-C-R<br> True False
    8·1 answer
  • Elements found on the left side of the Periodic Table are known as
    15·1 answer
  • If you start with 4 moles of iron and 3 moles of oxygen to produce iron oxide, what is the limiting reagent? (You will need to b
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!