Chemistry, 18.02.2020 18:58 lilque3448
The mineral orpiment, having the empirical formula As2S3, was used in ancient times as a cosmetic. What mass of arsenic is present in 5.0 g of orpiment? [Given: naturally occurring arsenic is all arsenic-75; assume that all naturally occurring sulfur is sulfur-32 (only approximately true)]
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Chemistry, 22.06.2019 04:00
Write the balanced equation for a reaction between aqueous nitric acid (hno3) and solid lithium metal (this is a single replacement reaction)
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Chemistry, 23.06.2019 02:00
Calculate the molarity of each aqueous solution: a. 78.0 ml of 0.240 m naoh diluted to 0.250 l with water b. 38.5 ml of 1.2 m hno3 diluted to 0.130 l with water
Answers: 1
Chemistry, 23.06.2019 05:30
Find the midpoint of a segment with endpoints of 4-3i and -2+7i
Answers: 2
The mineral orpiment, having the empirical formula As2S3, was used in ancient times as a cosmetic. W...
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