Chemistry

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Calculate the mass of sodium cyanate (NaOCN, molar mass = 65.0066 g mol-1) required to lower the ... Started by altibaby « 1 2 3 All »	25 Replies 2,766 Views	Feb 10, 2022 by Karman Kang
Calculate the final temperature of a 63.7 g piece of palladium, originally at 100.0 C, placed inside ... Started by Yi-Chen « 1 2 3 All »	22 Replies 1,987 Views	Feb 2, 2022 by kosaw52642@host1s.com
Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.85 g ... Started by torybrooks « 1 2 All »	16 Replies 2,322 Views	Jan 26, 2023 by tariqrobinson
A piece of uranium with a mass of 12.1 g and an initial temperature of 60.2 C was placed inside a ... Started by P68T « 1 2 All »	15 Replies 1,162 Views	Oct 7, 2022 by Zunair Irfan
Assume that an aqueous solution of a cation, represented by shaded spheres, is allowed to mix with a ... Started by jazziefee « 1 2 All »	15 Replies 2,596 Views	Mar 19, 2022 by Wowza1234
Which of the following correctly labels the salts?HF (Ka = 7.2 104)NH3 (Kb = 1.8 105)HCN (Ka = 6.2 1010) Started by xroflmao « 1 2 All »	15 Replies 1,458 Views	Jul 28, 2022 by Kattika
Which orbital-filling diagram represents the anomalous ground state of chromium? Started by melina_rosy « 1 2 All »	12 Replies 1,644 Views	Nov 14, 2021 by Rylee Bachmann
How many products are formed from the monochlorination of ethylcyclohexane? Ignore stereoisomers. Started by jlmhmf	9 Replies 1,586 Views	Aug 30, 2021 by jay rathod
Lead-206 has a relative abundance of 23.6%. What size block of lead (in cubic centimeters) will ... Started by rl	9 Replies 3,446 Views	Dec 10, 2023 by forgetful
9.26 g of an unknown solid is dissolved in a coffee cup calorimeter that contains 62.0 mL of water. ... Started by Redwolflake15	8 Replies 1,116 Views	Jun 30, 2022 by chloeeee22
The following diagrams represent the reaction of A2 (shaded spheres) with B2 (unshaded spheres). ... Started by sam.t96	8 Replies 1,367 Views	Oct 4, 2022 by Cam Byrd
Assume that an aqueous solution of hydroxide ion, OH-, represented by unshaded spheres, is allowed ... Started by faduma	8 Replies 1,194 Views	Sep 25, 2022 by Natan Jacobs
Calculate the activation energy, Ea, for a reaction with a frequency factor, A, of 9.3 1010 s-1 and ... Started by 123654777	7 Replies 600 Views	Jun 30, 2022 by Alisha Sasha
A 3.20 g sample of pyrite (density = 4.5 g /mL0) is placed into a graduated cylinder with 15.64 mL ... Started by hubes95	7 Replies 1,359 Views	Feb 14, 2022 by sdfadf
Molybdenum has an atomic number of 42. Several common isotopes exist, with mass Started by Hawke	6 Replies 2,624 Views	Jan 18, 2016 by s.meritte
How many grams of F2 gas are there in a 5.00 L cylinder at 5.327 bar and 23 C? Started by robinn137	6 Replies 962 Views	Oct 3, 2021 by Beenoz 2.0
A 125.0 mL sample of an aqueous solution at 25 C contains 29.4 mg of an unknown nonelectrolyte ... Started by rl	6 Replies 721 Views	Dec 15, 2021 by Jake Routledge
Calculate the solution temperature required to produce an osmotic pressure of 1.18 mbar using 3.72 ... Started by jCorn1234	6 Replies 722 Views	Apr 11, 2022 by Ayesha Faisal
A reaction with an activation energy of 65.4 kJ mol-1 has a rate constant of 1.15 s-1 at 354 K. At ... Started by piesebel	6 Replies 888 Views	Feb 24, 2022 by Mumtaz Said
An aqueous solution at 25.0 C contains [H+] = 0.085 mol L-1. What is the pH of the solution? Started by LaDunn	6 Replies 714 Views	Jun 2, 2022 by Adil Hassan
A 0.0925 g sample of a monoprotic base (mm = 17.03 g/mol) was dissolved in water to produce 100 mL ... Started by elizabeth18	6 Replies 666 Views	Apr 19, 2022 by Paula Gamboa-Sarmiento
Identify the compound:C10H14O:IR (cm-1): 3200-3500 (broad), 3050, 2950, 1610 1H NMR(): 1.0 (s, 6H), ... Started by P68T	5 Replies 377 Views	May 1, 2020 by G Spam
If 102.7 g of tin is mixed with 10.9 g of copper to create the alloy pewter, how many moles of metal ... Started by laurencescou	5 Replies 983 Views	May 27, 2022 by ruth oderinde
Arrange the following in order from most oxidized to least oxidized. Started by bcretired	5 Replies 1,359 Views	Jun 23, 2022 by Maram Moghrabi
Consider a galvanic cell based in the reaction Fe2+ + Cr2O72 Fe3+ + Cr3+ in acidic solution.What is ... Started by biggirl4568	5 Replies 455 Views	Jul 26, 2022 by Katherine Lataille