Chemistry, 23.04.2020 07:41 shanua

How many moles of argon are in 30.6L at 28K and 658 mmHg?

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Chemistry, 22.06.2019 16:00, julesperez22

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.

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Chemistry, 22.06.2019 20:00, jalenevoyles

Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.

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Chemistry, 22.06.2019 21:30, hh23135

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2

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Chemistry, 22.06.2019 22:30, drcarver

Which of the following is true about the speed of light? it depends on the wavelength.