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
Vladimir79 [104]
2 years ago
8

a gas measured a volume 100 mL under pressure of 740 mmHg. What would the volume be under a pressure of 780 mmHg with constant t

emperature
Chemistry
1 answer:
nikdorinn [45]2 years ago
7 0

Answer:

<h2>94.87 mL</h2>

Explanation:

The new volume can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

Since we're finding the new volume

V_2 =  \frac{P_1V_1}{P_2}  \\

We have

V_2 =  \frac{100 \times 740}{780}  =  \frac{74000}{780}  \\  = 94.8717...

We have the final answer as

<h3>94.87 mL</h3>

Hope this helps you

You might be interested in
The concentration of 1130+ in a solution is found to be 1.75 X 10-8 M 250C. Find [OH].
const2013 [10]

Answer:

[OH] = 6.31 * 10^-7 M

Explanation:

Mathematically;

pH + pOH = 14

Mathematically;

pH = -log [H3O+]

also;

pOH = -log [OH]

From the question; [H3O+] = 1.75 * 10^-8 M

pH = -log [1.75 * 10^-8]

pH = 7.76

since pH is normally given to 1 decimal place

we can say pH = 7.8

Now;

pH + pOH = 14

pOH = 14-7.8

pOH = 6.2

now pOH = -log [OH]

[OH] = -antilog 6.2

[OH] = 6.31 * 10^-7 M

5 0
3 years ago
How many significant figures are in 0.723 m
STALIN [3.7K]
There are three significant figures, this is because the zero before the decimal does not count
3 0
3 years ago
Choose the compound responsible for the ir spectrum shown.
AVprozaik [17]

The right answer is the first molecule (3-methyl-butan-2-one).

There are many bands around 2900-3000 cm-1 proving the presence de C-H bound.

There an intense band in 1700 cm-1 proving the presence of C=O.

There's no band proving the presence of aromatic structure, C=C bond nor C-N bond.

5 0
3 years ago
Read 2 more answers
Hello! May I please get some help here? :) Giving brainliest
Korvikt [17]

Answer:

no no no......

Explanation:

no no no......

7 0
2 years ago
Read 3 more answers
According to the following reaction, what volume in milliliters of 0.244M KCl(aq) solution is required to react exactly with 50.
Elodia [21]

Answer:

There is 86.1 mL of KCl needed

Explanation:

<u>Step 1:</u> Data given

Molarity of KCl = 0.244 M

Volume of a 0.210 M Pb(NO3)2 = 50.0 mL = 0.05 L

<u>Step 2:</u> The balanced equation

2KCl(aq) + Pb(NO3)2(aq) -> PbCl2(s) + 2KNO3(aq)

<u>Step 3:</u> Calculate moles Pb(NO3)2

moles Pb(NO3)2 =molarity * volume

moles Pb(NO3)2 = 0.210 M * 0.05 L

moles Pb(NO3)2 = 0.0105 moles

<u>Step 4:</u> Calculate moles of KCl

For 1 mole of Pb(NO3)2 we need 2 moles of KCl

moles KCl required = 0.0105 * 2 =0.0210  moles

<u>Step 5:</u> Calculate volume of KCl

Volume = moles KCl / molarity KCl

V = 0.0210 moles / 0.244 M=0.0861 L = 86.1 mL

There is 86.1 mL of KCl needed

6 0
3 years ago
Other questions:
  • There are four equal-sized bowls with equal amounts of milk.
    5·1 answer
  • If 1.2 kilograms of rust forms on a bridge in 5 days, what should be the rate of reaction in grams per hour?
    12·1 answer
  • Two chemicals A and B are combined to form a chemical C. The rate, or velocity, of the reaction is proportional to the product o
    9·1 answer
  • The chemical equation shows how ammonia reacts with sulfuric acid to produce ammonium sulfate. 2NH3(aq) + H2SO4(aq) (NH4)2SO4(aq
    12·1 answer
  • Air quality is a measure of how clean or polluted the air is. Which of the following is not a common way to determine air qualit
    6·1 answer
  • Which of the following represents a propagation step in the monochlorination of methylene chloride (CH2Cl2)?a. CHCl3 + Cl. Right
    15·1 answer
  • To make 1.00 L of 1.00 M NaOH solution, what mass of NaOH needs to be weighed out?
    11·2 answers
  • A farmer has a bucket of fertilizer that will help her plants grow. She
    5·1 answer
  • Sophia is working in her garden. She made two trips with her wagon along the same path to haul supplies. The first trip held 3 b
    5·1 answer
  • A hypothesis is tested by ___.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!