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3 years ago

A 4.3 L gas bubble at STP is heated to 984 K, and the pressure increases to 1520 mmHg. What is the new volume?

Chemistry

1 answer:

Natalka [10]3 years ago

5 0

Answer:

v2=40.35L

Explanation:

p1v1/t1=p2v2/t2

v2=t2p1v1/t1p2

v2=984*760*22.4/273.15*1520

v2=40.35 L

You might be interested in

How many moles of hydrogen gas are needed to produce 20 grams of hydrochloric acid (HCl)?

Charra [1.4K]

Answer:

0.27 mole

Explanation:

Data given:

mass of hydrochloric acid (HCl) = 20 g

moles of hydrogen (H₂O) = ?

Solution:

First we look to the reaction in which hydrogen react with Chlorine and make hydrochloric acid (HCl)

Reaction:

H₂ + Cl₂ -----------> 2HCl

Now look at the reaction for mole ratio

H₂ + Cl₂ -----------> 2HCl

1 mole 2 mole

So it is 1:2 mole ratio of hydrogen to hydrochloric acid (HCl)

As we Know

molar mass of H₂ = 2(1) = 2 g/mol

molar mass of HCl = 1 + 35.5 = 36.5 g/mol

Now convert moles to gram

H₂ + Cl₂ -----------> 2HCl

1 mole (2 g/mol) 2 mole (36.5 g/mol)

2 g 73 g

So,

we come to know that 2 g of hydrogen gives 73 g of hydrochloric acid (HCl) then how many grams of hydrogen will be required to produce 20 grams of hydrochloric acid (HCl).

Apply unity formula

2 g of H₂ ≅ 73 g of HCl

X g of H₂ ≅ 20 g of HCl

Do cross multiplication

X of H₂ = 2 g x 20 g / 73 g

X of H₂ = 0.55 g

Now convert grams of H₂ into moles

No. of moles = mass in grams/molar mass

Put values in above formula

No. of moles = 0.55 g / 2 (g/mol)

No. of moles = 0.27 mol

0.27 mole of hydrogen needed to produce 20 gram of hydrochloric acid (HCl).

7 0

3 years ago

Pickle is not stored in the metal vessel for long time.why?

larisa86 [58]

Answer:

Ummm a pickle is stored in glass container usually in the fridge

Explanation:

so the pickles dont go bad they go in the fridge so they dont mold. if you were to put them in a metal container they would get very cold when you put them in the fridge.

5 0

2 years ago

Read 2 more answers

Which situation describes evidence of a chemical change?

Oksanka [162]

Answer:

The correct answer is:

A solution feels warm after a cool solid is added to it (C)

Explanation:

Chemical changes among other results in a change of the temperature of the reactants, producing a product of higher temperature (exothermic reaction) or a product of lower temperature (endothermic reaction). In this case, the temperature of the product was higher than the reactants suggesting an exothermic reaction.

The other options however, suggests physical changes rather than a chemical changes;

A. the change of color of the water suggest mixing or water and color molecules.

B. solid changing into liquid is change of state, which is more of a physical change than chemical

D. Filtration is a physical process, hence the change is a physical change.

8 0

3 years ago

Write 0.006 in exponential form

Solnce55 [7]

$\huge\pink{Answer}$

0.0006 in scientific notation is 6 × 10-4

<h2>Step by step Explanation:</h2>

All numbers in scientific notation or standard form are written in the form

m × 10n, where m is a number between 1 and 10 ( 1 ≤ |m| < 10 ) and the exponent n is a positive or negative integer.

To convert 0.0006 into scientific notation, follow these steps:

Move the decimal 4 times to right in the number so that the resulting number, m = 6, is greater than or equal to 1 but less than 10

Since we moved the decimal to the right the exponent n is negative

n = -4

Write in the scientific notation form m × 10n

= 6 × 10-4

Therefore,

6 × 10-4 is the scientific notation form of 0.0006 number and 6e-4 is the scientific e-notation form for 0.0006

<h2>HOPE IT HELPS ☺️</h2>

7 0

4 years ago

Where and when would you come in contact with the element carbon in everyday life?

tatuchka [14]

1st place is in the air !
carbon dioxide has carbon in it and we release it all the time, when we're awake and when were asleep.
another place would be the gas that cars release. this gas is known as carbon monoxide.

7 0

3 years ago