Dolomite, [CaMg(CO3)2] is found in a soil sample. A geochemist titrates 24.65 g of soil with 57.85 mL of 0.3315M HCl. What is the mass % of dolomite in the soil? ( Write answer to two decimal places, ex. 15.77)
Following is the acid/base reaction which occurs during the titration: CO3-2(aq) + HCl(aq) --> HCO3-(aq) + Cl-(aq)
In: Chemistry
4) Cost per equivalent unit of direct materials and conversion
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The cost per equivalent unit of direct materials and conversion in the bottling department of Mountain Springs Water Company is $0.45 and $0.12, respectively. The equivalent units to be assigned costs are as follows: |
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Equivalent Units |
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Direct material |
Conversion |
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Inventory in process, beginning of period |
0 |
3,500 |
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Started and completed during the period |
57,000 |
57,000 |
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Transferred out of bottling (completed) |
57,000 |
60,000 |
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Inventory in process, end of period |
3,500 |
1,800 |
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Total units and costs to be assigned |
60,500 |
62,300 |
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The beginning work in process inventory had a cost of $2,200. Determine the cost of completed and transferred out production and the ending work in process inventory. Round answers to nearest whole dollar. |
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Completed and transferred out production |
$ |
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Inventory in process, ending |
$ |
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In: Accounting
We usually write numbers in decimal form (or base 10), meaning numbers are composed using 10 different “digits” {0,1,…,9}.{0,1,…,9}. Sometimes though it is useful to write numbers hexadecimal or base 16. Now there are 16 distinct digits that can be used to form numbers: {0,1,…,9,A,B,C,D,E,F}.{0,1,…,9,A,B,C,D,E,F}. So for example, a 3 digit hexadecimal number might be 2B8.
How many 3-digit hexadecimals are there in which the first digit is E or F?
How many 4-digit hexadecimals start with a letter (A-F) and end with a numeral (0-9)?
How many 4-digit hexadecimals start with a letter (A-F) and end with a numeral (0-9)?
In a recent survey, 43 students reported whether they liked their potatoes Mashed, French-fried, or Twice-baked. 24 liked them mashed, 23 liked French fries, and 12 liked twice baked potatoes. Additionally, 11 students liked both mashed and fried potatoes, 9 liked French fries and twice baked potatoes, 10 liked mashed and baked, and 2 liked all three styles. How many students hate potatoes? Explain why your answer is correct.
How many positive integers less than 975 are multiples of 8, 7, or 9? Use the Principle of Inclusion/Exclusion.
We want to build 5 letter “words” using only the first n=12n=12 letters of the alphabet. For example, if n=5n=5 we can use the first 5 letters, {a,b,c,d,e}{a,b,c,d,e} (Recall, words are just strings of letters, not necessarily actual English words.)
In: Math
Consider a saturated solution of the salt MX3, which M is a metal cation with a 3+ charge and X is an anion with a 1− charge, in water at 298 K. Which of the following will affect the Ksp of MX3 in water?a. diluting the solution. b. raising the temperature of the solution. c. more than one of the above factors. d. addition of more M3+ to the solution e. the addition of more X- to the solution.
In: Chemistry
Energyshot is a new energy drink that is about to be introduced into the global market. You are the executive in charge of marketing it in some of the lesser developed countries such as Honduras and Haiti. You are aware that food and milk in these countries is more expensive than Energyshot. Your boss thinks that one television advertisement campaign should be sufficient for all markets, just changing the translation to suit the language differences.
In: Economics
Problem 1: During the month, EKM Enterprise purchased $100,000 in raw material on account, used $150,000 in direct labor hours, and used $100,000 in direct raw materials. EKM Enterprise applies overhead at a rate of 200% of direct labor. No products were finished during the period. Prepare the necessary journal entries including the purchase of raw materials.
| General journal | debit | credit |
In: Accounting
An electron is accelerated inside a parallel plate capacitor.
The electron leaves the negative plate with a negligible initial
velocity and then after the acceleration it hits the positive plate
with a final velocity β. The distance between the plates is 11.0
cm, and the voltage difference is 147 kV. Determine the final
velocity β of the electron using classical mechanics. (The rest
mass of the electron is 9.11×10-31 kg, the rest energy
of the electron is 511 keV.)
What is the final velocity β of the electron if you use
relativistic mechanics?
In: Physics
There is a region with a constant magnetic field 6.31T . The magnetic field is directed out of the page. A conducting rod moves with a velocity of 1.58m/s , along a V shaped wire that is in the shape of a right triangle. At time = 0 s the rod is at the vertex of the triangle where the angle at the vertex is 19degrees . The right angle is where the conducting rod is. This means the rod is moving along the x axis and the rod is the y axis.
What is the emf induced in the rod after it has moved from the vertex for a time of 10.9s ?
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| emf = | V |
What is the current induced in the rod if the resistance is 5.31ohms ?
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| i = | A |
What is the power in the rod?
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| P = | W |
In: Physics
A 42-year-old man presents with an 8-hour history of testicular pain, which is increasing in
severity. He is in acute distress by the time you see him and complains of groin pain. He
notes some urinary frequency and nausea. His physical ex is unremarkable with
normal testicular and scrotal ex and mild left costovertebral angle tenderness.
Urinalysis reveals significant microscopic hematuria.
Questions:
1. Will you treat and/or refer? What follow-up is needed?
2. What education is needed for this patient for the future?
3. Are there any complementary therapies to assist this patient in control of his underlying condition long range? Support with evidence from the literature.
In: Nursing
In: Operations Management
Given a queue of integers, write an algorithm in Pseudocode that, using only the queue ADT, calculates and prints the sum and the average of the integers in the queue without changing the contents of the queue.
In: Computer Science
In: Physics
In: Computer Science
It's your birthday, and to celebrate you're going to make your first bungee jump. You stand on a bridge 120 m above a raging river and attach a 30-m -long bungee cord to your harness. A bungee cord, for practical purposes, is just a long spring, and this cord has a spring constant of 45 N/m . Assume that your mass is 71 kg . After a long hesitation, you dive off the bridge.
Part A
How far are you above the water when the cord reaches its maximum elongation?
Express your answer with the appropriate units.
In: Physics
I need an equation for finding the veocity of water at the end of an incline.
In: Physics