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Calculations
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Questions (980)
How do you calculate the % empty sapce in 100mL of air. Using Avogadro's number(6.02x10^23) and the average volume of O2 and
4 answers
asked by
Christy
1,805 views
a stone propelled from a catapult with a speed of 50ms-1 attains a height of 100m. Calculate the time of flight and the angle of
4 answers
asked by
chisom
1,027 views
Jonathan measure 2 cups of flour into a bowl on the counter then he spilled part of it and now there is only three eighths cup
3 answers
asked by
Ryan
987 views
diners frequently add 15% tip when charging a meal to a credit card.what is the price of the meal without the tip if the amount
4 answers
asked by
verkesia
4,594 views
I have to find the percentage of error. The accepted value is 11.35, while the value I got is 2.564. I got 2.564-11.35/11.35,
4 answers
asked by
Coralie
955 views
correct to one significant figure how many digit are there in expansion of 2^(1999)
3 answers
asked by
sam
458 views
The host of a dinner party purchases wine based on the weighted average of clarity (10%), bouquet (5%), friendliness to the
4 answers
asked by
Monica
1,483 views
How many grams of sodium carbonate are in a sodium carbonate sample that contains 1.773x10^17 carbon atoms? How do I work this
3 answers
asked by
Sam
2,657 views
A cannonball is fired with a velocity of 200 m/s at an angle of 25 degrees above the ground. After the total flight of 45.6
4 answers
asked by
Anne
975 views
Calculate the number of atoms in 50 dm^3 nitrogen gas
4 answers
asked by
Keabetswe
99 views
At 15degree Celsius the solubility of NaCl is 42g and 100g of solvent.calculate the mass of NaCl in 10g of a saturated solution
3 answers
asked by
Harmony
362 views
Find the total price to the nearest cent.
$12 bracelet,markup:115%, sales tax=5%
3 answers
asked by
Deborah
508 views
Calculate the solubility of LaF3 in grams per liter in the following solutions. The Ksp of LaF3 is 2.01 e-19.
0.013 M KF Solution
3 answers
asked by
Jessica
890 views
Paper pulp is sold on the basis that it contains 12% moisture; if the moisture exceeds this
value, the purchaser can deduct any
4 answers
asked by
jana
2,609 views
One manufacturer needs to calculate the net price of an order with a list price of $800 and a trade discount series of
2 answers
asked by
CC
858 views
a piece of metal has a mass of 85 cg and a volume of 450L. What is its density in g/cm^3? What would be the mass of 300cm^3 of
3 answers
asked by
anita
702 views
Using calculations, determine how you would make a 525 ml pg a 0.50 M solution of Cl- ions using CaCl2.
I am unsure how to do
3 answers
asked by
Heather
1,167 views
The reaction 2H2S(g)⇌2H2(g)+S2(g) Kc=1.67×10−7 at 800∘C is carried out with the following initial concentrations: [H2S] =
3 answers
asked by
hoooo
2,943 views
1. Macon Steinberg purchased a motor scooter with an installment loan that has an APR of 16 percent. The scooter sells for
3 answers
asked by
Katherina
1,786 views
A recipe calls for 1/3 of a container of yogurt. Each
container of yogurt has 150 calories. The recipe makes 4 servings. Which
3 answers
asked by
marie
62 views
A recipe calls for 1/3 of a container of yogurt. Each
container of yogurt has 150 calories. The recipe makes 4 servings. Which
5 answers
asked by
Vasilisa😙
119 views
A recipe calls for 13 of a container of yogurt. Each container of yogurt has 150 calories. The recipe makes 4 servings. Which
3 answers
asked by
lexie
45 views
Luis has a simple calculator that has buttons for the digits 0 through 9, each of the 4 basic operations (+, - ,*,/ ), and an
1 answer
asked by
John
414 views
4. Write a structured algorithm to prompt the user to enter the prices for two different pay-per-view movies. Calculate the
3 answers
asked by
alethia benney
576 views
Margie wants to buy a bracelet that is priced $13.50. What will the total price of the bracelet be with 6% sales tax?
3 answers
asked anonymously
43 views
Listerine mouthwash has 21.6% ethyl alcohol by volume. What mass of ethanol is contained in 20.0 mL of mouthwash ?! ( the
4 answers
asked by
Nicole
2,200 views
Gravitational Force, Attraction, and Mass Quick Check
these are correct for Connections Academy 10th grade Physical Science as of
5 answers
asked by
mmyoui
739 views
simplify 2+3.10 divided by 5.3-9
3 answers
asked by
Anonymous
261 views
bongani is a car salesperson . he earns a commission of 3% on sale of a car with value of r220000 .calculate how commission he
3 answers
asked by
siphow
517 views
A printer can print 24000 pages in 2 hours.
a) if the printer starts printing at 2:30 pm, how many pages will be printed by 5:15
5 answers
asked by
Indiana Jones
942 views
Unit 2: Kinematics in 1-D Exam Preparation 1. A bike first accelerates from 0.0 m/s to 5.0m/s in4.5 s, then continues at this
3 answers
asked by
amhir
1,354 views
calculate the weight of aspirin in mg per tablet using the following equations:
weight of aspirin = MnaoHXvnaoHXmolar mass of
7 answers
asked by
Maryjane
1,844 views
it cost a contactor $13750 to manufacture their first unit. The company expects to experience a 93% unit learning curve.
3 answers
asked by
Lisa
1,628 views
Gabriela has dinner at a cafe and the cost of her meal is $45.00Because of the service, she wants to leave a 15% percent tip.
Wha
4 answers
asked by
Dina
3,148 views
Of the students in Rosalie’s dance class, 29 out of 59 have participated in dance class before. About how many of her students
7 answers
asked by
Kinaya
1,188 views
A canadian television station shows 16 mins of commercials every hour between 8am and 11pm everyday. How many minutes of
10 answers
asked by
Mike
1,575 views
can someone explain the stoichiometry going on here...
so the questions is: A solution containing 0.20g of calcium salt is passed
3 answers
asked by
Anonymous
520 views
At 500 degrees celsius, K for the formation of ammonia from nitrogen and hydrogen gases is 1.5x10-5.
N2(g)+3H2(g)->/<-2NH3(g)
6 answers
asked by
Jessica
1,080 views
1) Planet Zero has a mass of 5.0*10^23 kg and a radius of 2.0*10^6 meters. What is the acceleration of gravity on planet zero?
2)
2 answers
asked by
Charlie
684 views
compute the kinetic energy of an 1800 lb automobile traveling at 30 mi/hr. how many times as great is the kinetic energy if the
3 answers
asked by
Anonymous
637 views
At what speed must a 950 kg subcompact car be moving to have the same kinetic energy as a 3.2*10^4 kg truck going 20 km/h ?
3 answers
asked by
Jenny
884 views
Hi,
I am trying to figure out how to calculate the average temperature of 2 different chemical solutions based upon the
4 answers
asked by
Jules
760 views
I am trying to figure this out. I know I am not right. I was looking for some help on how to get the proper answer.
Morgan
4 answers
asked by
Lisa
2,907 views
(a) The molar solubility of Ag2CrO4(s) at 35°C is 1.3 10-4 mol/L. Calculate Ksp.
(b) If 0.0490 g of AgIO3 dissolves per liter of
4 answers
asked by
Rebekah
1,983 views
How much boiling water would you need in order to raise the bath to body temperature (about 37)? Assume that no heat is
4 answers
asked by
Bella
1,141 views
Hi I just wanted to verify a few answers to chem questions I'm working on. Was wondering if anyone could help?
1. Calculate the
3 answers
asked by
Andre
1,082 views
Vinegar is 5% acetic acid. If the density of household vinegar is approximately 1.00 g/mL, how many grams of acetic acid are
3 answers
asked by
Samantha
672 views
What mass of CaCl2(s) must be dissolved in pure water at 10 degrees celsius to make a 26.3 mL solution and to increase the
6 answers
asked by
Anonymous
739 views
Yesterday, Sarah spent 3512
35 1 2 minutes studying for a test. Emma spent 112 1 1 2 times that amount studying for a different
7 answers
asked anonymously
226 views
Use the graph to interpret Sara's hourly rate and weekly earnings and fill in the blanks (only enter a numeric answer.... no
3 answers
asked by
Anonymous ;)
195 views
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