Chemistry » Page 57

Chemistry

Elsa Harding

Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For example, a solution of hydrogen peroxide, H2O2, can be titrated against a solution of potassium permanganate, KMnO4. The following equation represents the reaction: 2KMnO4 (aq) H2O2 (aq) 3H2SO4 (aq) →3O2 (g) 2MnSO4 (aq) K2SO4 (aq) 4H2O (l) A certain amount of hydrogen peroxide was dissolved in 100. mL of water and then titrated with 1.68 M KMnO4. What mass of H2O2 was dissolved if the titration required 20.8 mL of the KMnO4 solution

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Chemistry

Alfred Gilmore

the volume of air in a diving bell changes as it descends into deep water. if the air in a diving bell occupies 9.50 L at 1.02 atm and 20.1 c what will be the volume of the air at 1.55 atm and 15.0 c

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Chemistry

Nathen Nunez

H2o Cl2 NH3 have what in common

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Chemistry

Beckett Robles

What is the composition of Gilsonite?

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Chemistry

Bryanna Duran

The mixing of which pair of reactants will result in a precipitation reaction csi (aq) + naoh (aq) hcl+ca (oh) 2

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Chemistry

Messiah Harris

What does the sun earth and moon have in common

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Chemistry

Layton Bruce

How long does it take for light to travel?

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Chemistry

Lincoln

Why alkali metals are found in many common substances but are rarely found in pure form?

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Chemistry

Wendy Salas

In the wave-mechanicalmodel oftheatom, an orbitalis the most probable location of

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Chemistry

Devon Austin

Which of these is an appropriate instrument to measure mass?

balance

burette

ruler

graduated cylinder

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Chemistry

Mark Li

Which is the physical state of matter

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Chemistry

Zaniyah

A certain amount of H2S was added to a 2.0 L flask and allowed to come to equilibrium. At equilibrium, 0.072 mol of H2 was found. How many moles of H2S were originally added to the flask?

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Chemistry

Ricardo Hansen

What happens if this cloudy mixture is poured through a filter?

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Chemistry

Karly Galvan

What is the molar mass of a gas if 1.25 g of the gas has a volume of 255 L at STP?

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Chemistry

Haiden Russo

How are the inner core and outer core diffrent? How are they similar

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