Topic
Q:
Calculate the amount of heat required to vaporize 84.8 g of water at its boiling point.
Express the heat in kilojoules to three significant figures.
Q:
Calculate the amount of heat in kilojoules required to vaporize 2.58 kg of water at its boiling point.
Express the heat in kilojoules to three significant figures.
Q:
La masa de 2,24 L de sulfuro de hidrógeno (H2S) en C.N. es:
Q:
Identify which molecules have dipole-dipole forces and which do not.
Drag the appropriate molecules to their respective bins.
Reset Help.
Q:
7. Una muestra de gas ocupa un volumen de \( 1248 \mathrm{ft}^{3} \) a 0.988 atm y \( 28^{\circ} \mathrm{C} \). (a) Calcule la presiór
del gas si su volumen se reduce a \( 978 \mathrm{ft}^{3} \) mientras su temperatura se mantiene constante
(b) ¿A qué temperatura en grados Celsius el gas ocupara un volumen de \( 1435 \mathrm{ft}^{3} \) si la presión
se mantiene constante?
Q:
0.055
Score: \( 0 / 2 \)
(41) 2. Based upon this mass measurement, calculate the moles of hydrogen gas that should be produced. Show your - Saved
work as a stoichiometry calculation. (This value represents the theoretical yield of hydrogen gas.)
Q:
Indicate the most likely ion that each of the following will form.
(a) Ba
(b) In
(c) S
(d) Br
(e) N
Q:
The first noble gas in the periodic table is: (1) Helium (2) Hydrogen (3) Argon (4) Neon
Q:
Answer the following.
(a) A certain solution has a hydrogen ion concentration of \( 9.14 \times 10^{-6} \) moles per liter. Write this number in standard notation.
(b) A fin whale can weigh up to 260,000 pounds. Write this number in scientific notation.
(a) moles per liter
(b) pounds
Q:
For the following elements/ions give the electronic configuration:
(a) Te
(b) Os
(c) Gd
(d) \( \mathrm{Gd}^{3+} \)
(e) \( \mathrm{Bi}^{3+} \)
(f) \( \mathrm{Se}^{2-} \)
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