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scoray [572]
3 years ago
12

Which of these salts has the highest pH? K2SO4 Cu2SO4 NH4Cl NaCH3COO

Chemistry
2 answers:
OLEGan [10]3 years ago
7 0

the answer is D.  just took the test

poizon [28]3 years ago
6 0

Answer:

Sodium acetate (CH₃COONa)

Explanation:

A salt will give basic solution on dissolving in water it is a salt of strong base and weak acid.

A salt will give an acidic solution on dissolving in water if it is a salt of strong acid and weak base.

A salt will give neutral solution if it is a salt of acid and base of almost equal strength or dissociation.

Out of given salts

K₂SO₄ : it is a salt of strong base KOH and strong acid H₂SO₄.: neutral

Cu₂SO₄: it is a salt of weak base [Cu(OH)₂] and strong acid H₂SO₄: pH less than 7.

NH₄Cl : it is a salt of weak base [NH₄OH] and strong acid HCl: pH less than 7.

CH₃COONa: it is a salt of strong base [NaOH] and weak acid CH₃COOH:

pH more than 7.

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500.0 mL of a gas is collected at 745.0 mm Hg. what what will the volume be at standard pressure
Irina-Kira [14]
This is an application of Boyle's law:
P₁V₁ = P₂V₂. we don't have to convert volume and pressure to standard forms. we can even use the pressure with mmHg
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6 0
3 years ago
A nugget of gold has a mass of 28 grams and a volume of 1.45 cubic centimeters. What is the density?
Travka [436]

Answer:

0.01931034

Explanation:

Steps:

ρ =  m/v

       =  

28 gram

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=  19.310344827586 gram/cubic meter

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7 0
3 years ago
How many grams are in 32.2 L of CO2?
Naddika [18.5K]

Answer:

63.25 grams of CO₂

Explanation:

To convert from liters to grams, we first need to convert from liters to moles. To do this, we divide the liters by 22.4, the amount of liters of a gas per mole.

32.2 / 22.4

= 1.4375 moles of CO₂

Now we want to convert from moles to grams. To do this, we multiply the moles by the molar mass of CO₂. The total molar mass can be found on the periodic table by adding up the molar mass of carbon (12) and two oxygen (32).

12 + 32 = 44

Now we want to multiply the moles by the molar mass.

1.4375 • 44

= 63.25 grams of CO₂

This is your answer.

Hope this helps!

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