Calculate the number of moles of potassium

Assignment Help Chemistry
Reference no: EM131133871

Potassium bromide KBr contains 32.9% by mass potassium. If 6.40 g of bromine reacts with 3.60 g of potassium, calculate the number of moles of potassium which combine with bromine to form KBr.

Reference no: EM131133871

Questions Cloud

What are the major elements of strategic planning : What are the major elements of strategic planning? Refer to HBS case reprint, Southwest Airlines: In a Different World. What elements of strategic planning are present in the case study? Based on the case study, what are the major challenges of st..
Effect of using lifo during periods of rising prices : Which one of the following is an effect of using LIFO during periods of rising prices? Select one: a) Results in cost of goods sold closely approximating its market value.
How googles information system strategy support its strategy : How does Google's information systems strategy support its business strategy? Which of Porter's three generic strategies does Google appear to be using based on this case? Provide a rationale for your response.
Given the following information for smashville : You are given the following information for Smashville, Inc. Cost of goods sold: $ 174,000 Investment income: $ 1,400 Net sales: $ 379,000 Operating expense: $ 86,000 Interest expense:
Calculate the number of moles of potassium : calculate the number of moles of potassium which combine with bromine to form KBr.
What is the effect of temperature on chemisorptions : 1. What is the effect of temperature on chemisorptions? 2. What is the role of zinc metal in the extraction of silver?3. What is the basicity of H3P03?
Sprint company makes special equipment used in cell towers : Sprint Company makes special equipment used in cell towers. Each unit sells for $400. Sprint produces and sells 12,500 units per year. They have provided the following income statement data:
Effect on the company total fixed manufacturing : Wiacek Corporation has received a request for a special order of 5,000 units of product F65 for $28.50 each. Product F65's unit product cost is $27.85, determined as follows:
Maximum possible gas pressure : A 10 m radius of thin spherical tank is to be used to store gas if the wall thickness of the tank is 10 mm and the 125 mpa the maximum possible gas pressure neglecting the radial stress is A

Reviews

Write a Review

Chemistry Questions & Answers

  How much heat is evolved or absorbed when aluminum cools

Problem- How much heat (in J) is evolved or absorbed when a 35.4 g sample of aluminum (specific heat = 0.900 J/(g K)) cools from 88.4oC to 71.9oC

  Which one of the following molecules has a zero dipole

which one of the following molecules has a zero dipole

  Explain what is the concentration of 5 grams benzene

If density of ethanol is 0.789 g/ml what is the concentration of 5 grams benzene (c6h6) dissolved into 50 grams ethanol (c2h5oh)?

  Define the hypothetical reaction

Consider the hypothetical reaction, A + B ® C, with the rate law, Rate = k[A]2[B]. If the concentration of A is 0.650 mol/L, the concentration of B is 0.100 mol/L, and the rate is 1.70 M/min, calculate the rate constant,

  Explain what is the frequency factor if activation energy

A first order reaction has a rate constant of 2.75 X10-5 s-1 at 30 Celsius. Explain what is the frequency factor if the activation energy for the reaction is 8.02 kj/mol? R=8.314 J/mol K

  Define what percent by mass is bismuth subsalicylate

The active ingredient in Pepto-bismol is bismuth subsalicylate, C7H5BiO4. Analysis of a 1.500-g sample of Pepto-Bismol yields 346 mg of bismuth. What percent by mass is bismuth subsalicylate. (Assume that ther is no other bismuth containing compou..

  Write the mechanism for the elimination of 2-bromo-2

Question- Write the mechanism for the elimination of 2-bromo-2-methybutane using KOtBu that shows each of the two possible products?

  Compute the heat of the solution nh4cl

Assuming that the heat capacity of the ammonuim chloride solution is 4.18J/gc, calculate the heat (enthalpy) of the solution NH4Cl, (a) in J/g and (b) in kj/mol.

  What is the percent by mass of a solution

what is the percent by mass of a solution on made by dissolving 163 grams of table sugar in 755 grams of water.

  Given that the vapor pressure above pure a at 85 degrees

an ideal solution is created by mixing a and b in the molar ratio 23. the mixture has a normal boiling point at 85

  Compute the mole fraction of methane

The stack gas contains C02 at a partial pressure of 80 mm Hg and no CO,O2, methane or ethane. Calculate the mole fraction of methane in the fuel and the dew point temperature of the stack gas.

  Calculate the percentage of gold in the jewelry

If the total volume of the jewelry is the sum of the volumes of the gold and silver that it contains, calculate the percentage of gold (by mass) in the jewelry.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd