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3 years ago

Which statement is true about HCI?

Chemistry

1 answer:

katen-ka-za [31]3 years ago

3 0

Answer:

d- it is an acid because it increases the concentration of hydronium ions

Explanation:

HCl; hydrochloric acid is an acid because it increases the concentration of hydronium ions when in solutions.

An acid is a substance that interacts with water to produce excess hydroxonium ions H₃O⁺ in an aqueous solution.

For example:

HCl + H₂O → H₃O⁺ + Cl⁻

HCl is classified as a strong acid due to its complete ionization when in solutions.

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All of the following can be recycled except

Lunna [17]

Compact fluorescent bulbs because they made out of glass that will break and will dye and then they can't be used again

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4 years ago

A compound has a molar mass of 100 g/mol and the percent composition (by mass) of 65.45% C, 5.45% H, and 29.09% 0. Determine the

coldgirl [10]

Answer:

B) C3H3O and C6H6O2

Explanation:

Given data:

Molar mass of compound = 100 g/mol

Percentage of hydrogen = 5.45%

Percentage of carbon = 65.45%

Percentage of oxygen = 29.09%

Empirical formula = ?

Molecular formula = ?

Solution:

Number of gram atoms of H = 5.45 / 1.01 = 5.4

Number of gram atoms of O = 29.09/ 16 = 1.8

Number of gram atoms of C = 65.45 / 12 = 5.5

Atomic ratio:

C : H : O

5.5/1.8 : 5.4/1.8 : 1.8/1.8

3 : 3 : 1

C : H : O = 3 : 3 : 1

Empirical formula is C₃H₃O.

Molecular formula:

Molecular formula = n (empirical formula)

n = molar mass of compound / empirical formula mass

Empirical formula mass = 12×3 + 1.01 ×3 + 16×1 = 55.03

n = 100 / 5503

n = 2

Molecular formula = n (empirical formula)

Molecular formula = 2 (C₃H₃O)

Molecular formula = C₆H₆O₂

3 0

3 years ago

C4H8 is _______ . A) saturated B) unsaturated

timurjin [86]

The answer is B hope this is right

4 0

3 years ago

Can someone please answer this it’s due today please

Digiron [165]

Explanation:

g is inner layer

e is nucleons

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9307795291

4 0

3 years ago

Read 2 more answers

What would be the pressure of 1.0g of O2 contained in a 4.00L container at 293 K?

Natalka [10]

Answer: The pressure will be equal to 0.19 atm.

Explanation:

The Ideal Gas Equation states the relationship among the pressure, temperature, volume, and number of moles of a gas.

The equation is:

$PV=nRT$

where P = pressure in atm

V = volume in L

n = numbers of moles of gas in mol

R = universal gas constant = 0.08206 $\frac{L-atm}{mol - K}$

T = temperature in K

Based on the problem,

mass of O2 = 1.0 g

V = 4.00 L

T = 293 K

mol of O2 = ?

P = ?

We need to calculate the moles of O2 before we can use the Ideal Gas Equation. To solve the number of moles, we use the equation:

$no. of moles = \frac{given\ mass\ (in\ grams) }{molar\ mass\ (in\ \frac{grams}{mole}) }$

The molar mass of O2 is 32 g/mol, therefore,

$no. of moles = \frac{1.0g}{32\frac{g}{mol} }$

no. of moles of O2 = 0.03125 mol.

Now we substitute the values into the Ideal Gas equation:

$P(4.00L) = (0.03125 mol)(0.08206\frac{L-atm}{mol-K} )(293K)$

Solving for P, we will get

$P=\frac{(0.03125mol)(0.08206\frac{L-atm}{mol-K})(293K) }{4.00L} \\\\P= 0.1878 atm.$

In correct significant figures, P is equal to 0.19 atm.

5 0

3 years ago