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Identify the unknown gas. What is the mass of the solid NH4Cl formed when 73g of NH3 are mixed with an equal mass of HCI? What is the volume of the gas remaining, measured at 14.0 degrees C and 752 mmHg? What gas is it?
the elements of 3d transition series are given as:sc, ti, v, cr, Mn, fe, Coanswer the following: (a) write the element which shows max. no. of oxidation states.why? (b)which element has highest M.P (c) which elements is ...
An empty 100-mL measuring cylinder weighs 132.456 g. When filled with rice to the 100-mL mark it weighs 220.345 g. After water has been added to fill the spaces between the grains, the weight is 250.123 g. What is the ...
What is the volume occupied by 29.1 g of argon gas at a pressure of 1.23 atm and a temperature of 399 K?
Write an essay about molecular modelling, its uses, and applications, and use a freely available modelling software from the internet and include the details of the modelling you followed, and give examples of at least t ...
Assignment Part 1 1. The pH scale is generally considered as a scale from 1 to 14. State a value of pH considered to be: a. acidic b. basic c. neutral 2. The acid in our stomach is used to break down food proteins and ki ...
You are tasked to determine the amount of blue dye in a sample of purple energy drinka a) How would you be able to see only the blue dye to determine concentration when the drink itself is purple? b) Describe the procedu ...
Calculate the molality of a solution prepared by dissolving 4.75g of C10H8 in 75.0 mL of C6H6 (l) of density, 0.879g/mL.
A sample of O2 was collected over water at 25C and .865 atm. If the total sample volume was 2.538 L, how many moles of O2 were collected?
How many seconds will be required to produce 1.0 g of chromium metal by the electrolysis of a Cr(NO3)3 solution using a current of 3.0 A? Could someone please help me with the work for this.
A 0.6745 gram sample of KHP reacts with 41.75 mL of KOH solution for complete neutralization. What is the molarity of the KOH solution? (Molecular weight of KHP = 204 g/mol. KHP has one acidic hydrogen.)
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