When Na 3 PO 4 and Ca(NO 3 ) 2 are combined, the following reaction occurs: 2 PO 4 3 − ( a q ) + 3 Ca 2 + ( a q ) → C a 3 ( PO 4 ) 2 ( s ) How many grams of Ca 3 ( PO 4 ) 2 ( s ) ( MM = 310.18 g / mol ) are obtained when 15.00 mL of 0.1386 M Na 3 PO 4 are mixed with 20.00 mL of 0.2118 M Ca(NO 3 ) 2 ?
When Na 3 PO 4 and Ca(NO 3 ) 2 are combined, the following reaction occurs: 2 PO 4 3 − ( a q ) + 3 Ca 2 + ( a q ) → C a 3 ( PO 4 ) 2 ( s ) How many grams of Ca 3 ( PO 4 ) 2 ( s ) ( MM = 310.18 g / mol ) are obtained when 15.00 mL of 0.1386 M Na 3 PO 4 are mixed with 20.00 mL of 0.2118 M Ca(NO 3 ) 2 ?
Solution Summary: The author explains that number of moles is equal to the ratio of given mass to molar mass.
When Na3PO4 and Ca(NO3)2 are combined, the following reaction occurs:
2
PO
4
3
−
(
a
q
)
+
3
Ca
2
+
(
a
q
)
→
C
a
3
(
PO
4
)
2
(
s
)
How many grams of
Ca
3
(
PO
4
)
2
(
s
)
(
MM
=
310.18
g
/
mol
)
are obtained when 15.00 mL of 0.1386 M Na3PO4 are mixed with 20.00 mL of 0.2118 M Ca(NO3) 2?
An essential part of the experimental design process is to select appropriate dependent and
independent variables.
True
False
10.00 g of Compound X with molecular formula C₂Hg are burned in a constant-pressure calorimeter containing 40.00 kg of water at 25 °C. The temperature of
the water is observed to rise by 2.604 °C. (You may assume all the heat released by the reaction is absorbed by the water, and none by the calorimeter itself.)
Calculate the standard heat of formation of Compound X at 25 °C.
Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits.
need help not sure what am doing wrong step by step please answer is 971A
During the lecture, we calculated the Debye length at physiological salt concentrations and temperature, i.e. at an ionic strength of 150 mM (i.e. 0.150 mol/l) and a temperature of T=310 K. We predicted that electrostatic interactions are effectively screened beyond distances of 8.1 Å in solutions with a physiological salt concentration.
What is the Debye length in a sample of distilled water with an ionic strength of 10.0 µM (i.e. 1.00 * 10-5 mol/l)? Assume room temperature, i.e. T= 298 K, and provide your answer as a numerical expression with 3 significant figures in Å (1 Å = 10-10 m).
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.