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
rjkz [21]
3 years ago
12

A gas occupies 480 L at 315K. Find its volume at 345K. You must show all of your work to receive credit. Be sure to identify whi

ch of the Gas Laws you will be using.
Chemistry
1 answer:
Nuetrik [128]3 years ago
7 0

Answer:

using charles law , volume of gas is 525.7 L

Explanation:

Charles law states for a fixed mass of gas the volume is directly proportional to absolute temperature at constant pressure.

V1 / T1 = V2 / T2

V1 is volume and T1 is temperature at first instance

V2 is volume and T2 is temperature at second instance

substituting the values in the equation

480 L / 315 K = V2 / 345 K

V2 = 525.7 L

therefore new volume is 525.7 L

You might be interested in
A solution made by dissolving 33 mg of insulin in 6.5 mL of water has an osmotic pressure of 15.5 mmHg at 25°C. Calculate the mo
Liula [17]

<u>Answer:</u> The molar mass of the insulin is 6087.2 g/mol

<u>Explanation:</u>

To calculate the concentration of solute, we use the equation for osmotic pressure, which is:

\pi=iMRT

Or,

\pi=i\times \frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}\times RT

where,

\pi = osmotic pressure of the solution = 15.5 mmHg

i = Van't hoff factor = 1 (for non-electrolytes)

Mass of solute (insulin) = 33 mg = 0.033 g   (Conversion factor: 1 g = 1000 mg)

Volume of solution = 6.5 mL

R = Gas constant = 62.364\text{ L.mmHg }mol^{-1}K^{-1}

T = temperature of the solution = 25^oC=[273+25]=298K

Putting values in above equation, we get:

15.5mmHg=1\times \frac{0.033\times 1000}{\text{Molar mass of insulin}\times 6.5}\times 62.364\text{ L.mmHg }mol^{-1}K^{-1}\times 298K\\\\\text{molar mass of insulin}=\frac{1\times 0.033\times 1000\times 62.364\times 298}{15.5\times 6.5}=6087.2g/mol

Hence, the molar mass of the insulin is 6087.2 g/mol

8 0
3 years ago
Which is most likely to dissolve fastest in water? A. sugar cube B. powdered sugar
leva [86]
Sugar cube is my answer

Hope this helps!
Let me know if i'm wrong.
7 0
3 years ago
Read 2 more answers
The teacher said the volume of the liquid was 500 mL when measured a student found it was 499.7 mL what is the students percent
Natalka [10]

Answer:

<h2>0.06 % </h2>

Explanation:

The percentage error of a certain measurement can be found by using the formula

P(\%) =  \frac{error}{actual \:  \: number}  \times 100\% \\

From the question

error = 500 - 499.7 = 0.3

actual volume = 500 mL

We have

p(\%) =  \frac{0.3}{500}  \times 100 \\  =  \frac{3}{50}  \\

We have the final answer as

<h3>0.06 % </h3>

Hope this helps you

4 0
3 years ago
Convert 0.00200 g into Mg and answer in scientific notation:
Masja [62]

Answer: 2.00x10^{2}

Explanation: 1 gram is equal to 1000 Milligrams so

0.00200g=\frac{1000mg}{1g}

Since you go straight across its just multiplication so 0.00200x1000=200mg

To answer it in scientific notation it should just be 2.00x10^{2} mg

5 0
2 years ago
5 properties of acids
Dahasolnce [82]

Answer:

   Acids change the color of litmus from blue to red.

   They convert the color of Methyl Orange from Orange/Yellow to Pink.

   Acids turn the pink color of Phenolphthalein to colourless.

   Acids can conduct electricity.

   Some Acids are highly corrosive in nature which means that they corrode or rust metals.

Explanation:

hope this helped

ur boi johnny joestar.

8 0
3 years ago
Read 2 more answers
Other questions:
  • HELP ME PLZ ITS REALLY IMPORTANT! PLEASE TRY TO DO ALL!!
    6·1 answer
  • Which of the following is the correct formula for nitrous acid? a) HNO b) HN2O c) N2O d) HNO2 e) HNO3
    9·1 answer
  • If a red blood cell is 100% saturated, how many molecules of O2 are bound to it?1 billion molecules of O24 molecules of O2250 mi
    13·1 answer
  • MY ELEMENT IS SODIUM
    7·1 answer
  • The function of the cell wall is to
    5·2 answers
  • Describe happens when you move any atom toward the positive nuclear charge.
    13·1 answer
  • For each of the following, highlight the element which has the highest:
    15·1 answer
  • The first law of thermodynamics is observed when
    14·1 answer
  • Seawater is mostly a solution of sodium chloride in water. The concentration varies, but marine biologists took a sample with an
    5·1 answer
  • Which scientist is credited with developing the fist scientific atomic theory
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!