Stoichiometry Archives - Page 28 of 37 -

A solution with reasonably permanent pH is called a/an _______________ solution?

A solution with reasonably permanent pH is called a/an _______________ solution?

A. Ideal
B. Non-ideal
C. Buffer
D. Colloidal

A solution with reasonably permanent pH is called a/an _______________ solution? Read More »

The heat capacity of a solid compound is calculated from the atomic heat capacities of its constituent elements with the help of the___________________?

The heat capacity of a solid compound is calculated from the atomic heat capacities of its constituent elements with the help of the___________________?

A. Trouton’s rule
B. Kopp’s rule
C. Antoine equation
D. Kistyakowsky equation

The heat capacity of a solid compound is calculated from the atomic heat capacities of its constituent elements with the help of the___________________? Read More »

Stoichiometry

A compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is_________________?

Stoichiometry / admin

A compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is_________________?

A. N2O4
B. N2O5
C. N2O3
D. None of these

A compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is_________________? Read More »

Stoichiometry

For a neutral solution (pH = 7), the value of [H+] [OH-] is equal to_________________?

Stoichiometry / admin

For a neutral solution (pH = 7), the value of [H+] [OH-] is equal to_________________?

A. 0
B. 1
C. 1

For a neutral solution (pH = 7), the value of [H+] [OH-] is equal to_________________? Read More »

Stoichiometry

With rise in temperature, the heat capacity of a substance___________________?

Stoichiometry / admin

With rise in temperature, the heat capacity of a substance___________________?

A. Increases
B. Decreases
C. Remains unchanged
D. Either A. or B.; depends on the substance

With rise in temperature, the heat capacity of a substance___________________? Read More »

Stoichiometry

One of the specific gravity scales is “Brix” (used specifically for sugar solution). It is defined as ______________?

Stoichiometry / admin

One of the specific gravity scales is “Brix” (used specifically for sugar solution). It is defined as ______________?

A. Brix = (400/G) – 400
B. Brix = 200 (G-1)
C. Brix = 145 – (145/G)
D. None of these

One of the specific gravity scales is “Brix” (used specifically for sugar solution). It is defined as ______________? Read More »

Stoichiometry

A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be_______________?

Stoichiometry / admin

A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be_______________?

A. -136.5°C
B. – 136.5°K
C. -273°C
D. 0°K

A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be_______________? Read More »

Stoichiometry

The heat evolved in the combustion of benzene is represented by the equation: C6H6 + 7.5 O2 = 6CO2 + 3H2O, ΔH = 3264.6 kJ/kg. mole The heat energy change, when 39 gm of C6H6 is burnt in an open container, will be _____________ kJ/kgmole?

Stoichiometry / admin

The heat evolved in the combustion of benzene is represented by the equation: C6H6 + 7.5 O2 = 6CO2 + 3H2O, ΔH = 3264.6 kJ/kg. mole The heat energy change, when 39 gm of C6H6 is burnt in an open container, will be _____________ kJ/kgmole?

A. +816.15
B. +1632.3
C. -1632.3
D. -2448.45

Stoichiometry