Answered step by step

Verified Expert Solution

Link Copied!

Question

1 Approved Answer

Posted on May 16, 2020

Calculate the number of 40 19K atoms in the KCl sample. (Numbers to be considered: the molar mass of KCl =74.6 g; Avogadro Number =

Calculate the number of 40 19K atoms in the KCl sample. (Numbers to be considered: the molar mass of KCl =74.6 g; Avogadro Number = 6.02x1023; Isotopic abundance of 40 19K = 0.01 %).

Step by Step Solution

★★★★★

3.50 Rating (167 Votes )

There are 3 Steps involved in it

Step: 1

Answer Isotop of Potassium K 40 19 K and 39 19 K Isotopic abundance of 40 19 ... blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

Step: 3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Fundamentals of biochemistry Life at the Molecular Level

Authors: Donald Voet, Judith G. Voet, Charlotte W. Pratt

4th edition

470547847, 978-0470547847

More Books

Students also viewed these Chemistry questions

Question

★★★★★

Calculate the number of molecules/m3 in an ideal gas at STP.

Answered: 1 week ago

Question

★★★★★

Calculate the number of shares purchased with a $5,000 investment in a no loan mutual fund with a NAV of $21.47. Round to the nearest thousandth of a share?

Answered: 1 week ago

Question

★★★★★

Calculate the number of chains in a 5-m-long PVC pipe with an inner diameter of 5 cm and a thickness of 0.5 cm if the degree of polymerization is 1000. Assume that the chains are equal in length. The...

Answered: 1 week ago

Question

★★★★★

Presented below is information related to Larkspur Inc.'s inventory, assuming Larkspur uses lower-of-LIFO cost-or-market. (per unit) Skis Boots Parkas Historical cost $224.20 $125.08 $62.54 Selling...

Answered: 1 week ago

Question

★★★★★

Let G = (V, E) be a loop-free connected undirected graph, and let {a, b} be an edge of G. Prove that {a, b} is part of a cycle if and only if its removal (the vertices a and b are left) does not...

Answered: 1 week ago

Question

★★★★★

Can you think of types of resources for which it makes no sense to try and resolve resource contention?

Answered: 1 week ago

Question

★★★★★

6.55 Calculate the area under the standard normal curve between these values: a. z=-2.0 and z=2.00 b. z=-2.3 and z=-1.5

Answered: 1 week ago

Question

★★★★★

Banko Inc. manufactures sporting goods. The following information applies to a machine purchased on January 1, 2018: Purchase price......................................$ 70,000 Delivery...

Answered: 1 week ago

Question

★★★★★

ADM 1300 B CASE 2 - GROUPS 4, 5, and 6 Carleton graduate launches Ottawa-based period products company called 'Only' (adapted from CTV News Ottawa at Noon; Published Sunday, January 23, 2022) However...

Answered: 1 week ago

Question

★★★★★

Suppose the S&P 500 Index portfolio pays a dividend yield of 2% annually. The index currently is 3,000. The T-bill rate is 3%, and the S&P futures price for delivery in one year is $3,045. Construct...

Answered: 1 week ago

Question

★★★★★

You should provide graphs of crime data and written explanations of each of the following questions. a. Why is crime a particular problem for urban areas? b. What are the trends in crime rates over...

Answered: 1 week ago

Question

★★★★★

Corporate cultures vary considerably, both within and across national borders. Why should global managers care about such variations, so long as they know the specific individuals within a company...

Answered: 1 week ago

Question

★★★★★

Question #1 (2 points) For the following file type extensions provide a brief description of its purpose and what it is used for. Example: .bmp short for: bitmap used for: graphics, Microsoft...

Answered: 1 week ago

Question

★★★★★

A high-paying job that you rally want. Include sufficient detail to demonstrate you have a solid understanding of the concepts and you can explain your thinking very well. What factors should you...

Answered: 1 week ago

Question

★★★★★

7) The matrix below contains data about an unbalanced transportation problem. To solve this problem, you would have to create a Dummy _____. Unit Cost From/To Destination #1 Destination #2...

Answered: 1 week ago

Question

★★★★★

1 . Panamint Systems Corporation is estimating activity costs associated with producing disk drives, tapes drives, and wire drives. The indirect labor can be traced to five separate activity pools....

Answered: 1 week ago

Question

★★★★★

Coca - Cola is available at retail outlets worldwide; its products are available in vending machines, grocery stores, fast - food restaurants, and even online. This product availability is an example...

Answered: 1 week ago

Question

★★★★★

You deposit $10,000 in a savings account that earns 7.5% simple interest per year. What is the minimum number of years you must wait to double your balance? Suppose instead that you deposit the...

Answered: 1 week ago

Question

★★★★★

Draw a diagram, including exons and introns, of a gene that encodes both membrane-bound and soluble forms of a protein. Explain how one gene can code for two different forms of a protein.

Answered: 1 week ago

Question

★★★★★

Fatty acids appear to stimulate insulin secretion to a much greater extent when glucose is also present. Why is this significant?

Answered: 1 week ago

Question

★★★★★

Which of the 20 "standard" amino acids are (a) Purely glucogenic, (b) Purely ketogenic, and (c) Both glucogenic and ketogenic?

Answered: 1 week ago

Question

★★★★★

A Washington Post ABC News poll found that 72% of people are concerned about the possibility that their personal records could be stolen over the Internet. If a random sample of 300 college students...

Answered: 1 week ago

Question

★★★★★

For each of the following z -test statistics, compute the p -value assuming that the hypothesis test is a one-tailed test: a. z = 1.34 b. z = 2.09 c. z = - 1.55

Answered: 1 week ago

Question

★★★★★

Provide the relevant critical value(s) for each of the following circumstances: a. HA: > 13, n = 15, = 10.3, a = 0.05 b. HA: 21, n = 23, = 35.40, a = 0.02 c. HA: 35, n = 41, s = 35.407, a =...

Answered: 1 week ago

Previous Question Next Question