Monday

February 20, 2017
Number of results: 23,689

**Science**

Calculate the volume of solute percent in 90ml solution with 5%

*June 26, 2016 by Althea Jane Duran*

**Science**

Calculate the no. Off molecules atom in 360gm of water...??

*June 30, 2016 by Anonymous*

**chemistry**

Calculate the pH of a solution containing 10 g / L of NH4Cl (Kb NH3 = 1.8x10-5

*July 5, 2016 by Anonymous*

**Physics**

Calculate the λSWL for molybdenum, when the accelerating potential is 15 kV

*July 25, 2016 by Sowmi*

**Che**

Calculate the fundamental particles in HCN and na2co3 and k2so4

*July 26, 2016 by gamma ali*

**science**

Calculate the pH of the solution 5ml of M/5,HCl+10ml of M/10 NaO

*August 12, 2016 by KANNAN*

**history**

calculate the tariff of your total stay in khaplu hotel.?

*August 13, 2016 by esha*

**CHEMISTRY**

CALCULATE THE DECREASE IN TEMPERATURE FOR 22.0 G SILVER THAT LOSES 625 J

*September 2, 2016 by MARY*

**Science**

Calculate the energy release in 1 gram of Uranium 235

*September 5, 2016 by ADA*

**Maths**

Calculate The Probability That At Least One Ball Is Blue.

*September 6, 2016 by Festus*

**CHEMISTRY**

calculate the weight of co2 by complete combustion of 1.5 \g of ethane

*October 2, 2016 by ATHARV Singh*

**science**

A sample of calcite have 50%cao 40% L.o.i.calculate %of caco3?

*October 11, 2016 by HASSAN zia*

**chemistry**

calculate the normality of 4g of sodium hydroxide in 100ml of solution

*October 13, 2016 by arul raj*

**Math**

The side of a square is 15 cm. Calculate the length of its diagonal. (1dp)

*October 24, 2016 by Anonymous*

**maths**

the net of a cube has an edge of 5cm. calculate the perimeter

*November 2, 2016 by joshua*

**Maths**

Given that 3^9 + 3^12 + 3^15 + 3^n is a perfect cube number. Calculate the value of n.

*November 12, 2016 by Help*

**CHEMISTRY**

CALCULATE THE OSMOLARITY OF THE FOLLOWING ).1M KNO3 & ).35M Na3PO4 & 0.35

*November 17, 2016 by BOBBI*

**Chemistry **

calculate number of moles of NH3 if 8g of H2 reacts in excess N2

*January 3, 2017 by Zohaib*

**chemistry **

Calculate pH of 6ml of 3M HNO3 diluted to 18 litres of water

*January 14, 2017 by Frederick *

**science**

calculate the moles of oxygen atom in 6.2 g of calcium carbonate?

*February 2, 2017 by j*

**Chem**

Calculate the mass of 0.025 moles of sodium bicarbonat

*February 16, 2017 by Anonymous*

**mechanical**

A cylindrical tank with flat endplates is constructed from two sections that are welded together circumferentially.The outer diameter of the tank is 1.20, and the wall of the tank is 20.0 mm thick and the mamimum internal pressure is 2.00 MPa. (a) Calculate the maximum hoop ...

*November 16, 2016 by tommy*

**mathematics**

The basic wage earned by a truck driver for a 40 hr work week is $560.00. A)Calculate his hourly rate. Is the ans $14 per hour 2) For overtime work, the driver is paid one and a half time the basic hourly rate. B)Calculate his overtime wage for 10 hrs of overtime Is the ans...

*June 13, 2009 by MONIKA*

**math**

Calculate the value of the following in exponential form, using standard scientific or "e" notation (for example, 105 = 1.05e2). Enter your answer with the correct number of significant figures. 885.75 g + 10.151 g - 25.50 g Calculate the value of the following in exponential ...

*September 23, 2010 by help?*

**Finance**

High Hills plc produce underwater turbines to generate energy and are considering introducing machinery that will reduce the labour hours required to produce a turbine from 5 hours to 2 hours for the remainder of the product life cycle of 3 years. The production volumes are ...

*December 15, 2015 by Janice*

**Math - Statistics**

I roll 12 4-sided dice. What is the probability that I roll at least one 2? What is the probability that I roll exactly three 2s? So i take it, on any give roll, the probability of rolling a 2 is .25 (25%); the probability of rolling something else must be .75 The probability ...

*March 29, 2007 by Lauren*

**Science**

How much sodium hydroxide, at what concentration, do I need to add to 500 mL of 0.1 N HCL to obtain pH 6.8. How do you calculate this? pH = -log(H^+) M HCl = N HCl mols = M x L. After you know mols HCl you have, then make a solution of NaOH and calculate how much of that must ...

*February 5, 2007 by Ruby*

**Can someone help me on math?**

Calculate the simple interest for each situation. Choose THREE that have a simple interest greater than $800.00. a. $2,000.00 at 6% for 7 years *** b. $4,500.00 at 3% for 6 years *** c. $1,400.00 at 6% for 9 years d. $5,000,00 at 7% for 3 years *** e. $800.00 at 15% for 5 ...

*February 1, 2016 by Soso*

**physics help me please**

A 1220 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A W = 1990 N crate hangs from the far end of the beamThe angle between the beam and the horizontal is 30 degrees upwards and the angle between the horizontal and the ...

*November 28, 2010 by student*

**physics**

Proponents of astrology claim that the positions of the planets at the time of a baby's birth will affect the life of that person in important ways. Some assert that this effect is due to gravity. Examine this claim with Newton's law of gravity. Calculate the maximum force ...

*March 15, 2009 by cb*

**calculus**

I have the following problem on a takehome assignment and am stuck. A particular stock has value V(t) at time t where V(t)=Ke^(1/2) where K>0. Assume that alternative investments grow in value to e^(rt). Calculate the instantaneous rate of change in the value of the stock. ...

*March 16, 2008 by Rey*

**Statistics Algebra 2**

A 10-question multiple choice test has 4 possible answers for each question. A student guesses on all ten answer. a)What is the probability that the student selects at least 6 correct answers? b)Is getting exactly 10 questions correct the same probability as getting exactly ...

*May 8, 2016 by Dloc*

**Healthcare finance**

Milwaukee Surgical Supplies, Inc., sells on terms of 3/10, net 30. Grosee sales for the year are $1,2000,000 and the collections department estimates that 30% of the customers pay on the tenth day and take discounts, 40% pay on the thirtieth days, and remaining 30% pay, on ...

*December 7, 2011 by hunter007*

**devry**

A small startup software developer company needs to create a program that will calculate the pay of its employees. For the third version of the program, the company wants the program to accept an employee’s name, the number of hours the employee worked, and the hourly pay ...

*January 24, 2011 by pp*

**College Chemistry**

We will calculate the amount of acid to use in each titration. Assume that you are using 0.0512 M NaOH(aq). A good volume of NaOH(aq) to use per titration is 15mL. From this molarity and volume, the moles of NaOH can be calculated. Since the unknown acid is monoprotic, this ...

*October 15, 2012 by Alex*

**Chemistry Dr. Bob222**

Ok, UMMMM I thought I was good.. Till now.. Ok, For Cup C Mass of cup,water,stirrer: 55.15 Mass of sodium bicarbonate: 2.02g mass of citric acid: 0.77g total mass: 57.94g mass of cup,solution, stirrer after reaction: 57.64 difference (CO2): 0.30g Part B: Limiting Reactants ...

*March 3, 2015 by Jennie*

**Physics**

One very long wire carries a current of 30A to the left along the x-axis.A second very long wire carries a current of 50A to the right along the line(y=0.280m,z=0) A)Where in the plane of the two wires is the total magnetic field equal to zero? B)A particle with a charge of -2...

*November 11, 2009 by Sandhu*

**accounting**

On December 31, 2008, University Theatres issued $500,000 face value of bonds. The stated rate is 6 percent, and interest is paid semiannually on June 30 and December 31. The bonds mature in 10 years. Required: If required, round your answers to the nearest whole dollar. ...

*July 20, 2011 by me*

**ap chemistry**

A sample of gas in a cylinder of volume 4.2 L at 316 K and 2.68 atm expands to 7.21 L by two different pathways. Path A is an isothermal, reversible expansion. Calculate the work for Path A. Answer in units of J Path B has two steps. In the first step, the gas is cooled at ...

*October 8, 2012 by hanna*

**physics (Kinematics)**

A motorist drives north for 35.0 s at 25.0 m/s and then stops for 23.0 s. He then continues north traveling 13.0 m in 2.00 s. (a) What is his total displacement? (b) What is his average velocity (magnitude and direction)? I am just clueless on this one. I don't even know where...

*January 31, 2007 by eric*

**Statistics**

Consider the following frequency distribution of daily sales for a shop that was kept for the months of November and December in 2013. Daily Sales ($) 60-70 70-80 80-90 90-100 100-110 110-120 Number of days 5 11 22 13 7 3 a. From this frequency distribution, (i) draw a ...

*October 1, 2016 by Nathan*

**Business Finance**

Jungle, Inc., has a target debt−equity ratio of 0.72. Its WACC is 11 percent, and the tax rate is 31 percent. (Do not include the percent signs (%). Round your answers to 2 decimal places. (e.g., 32.16)) Required: (a) If Jungle's cost of equity is 14 percent, its pretax ...

*October 31, 2010 by Matt*

**AP Chemistry**

(a) When 300.0 milliliters of a solution of 0.200 molar AgNO3 is mixed with 100.0 milliliters of a 0.0500 molar CaCl2 solution, what is the concentration of silver ion after the reaction has gone to completion? (b)Write the net cell reaction for a cell formed by placing a ...

*April 5, 2010 by Jessica*

**Chemistry**

Calculate the theoretical pH after 2.50 mL and 9.50 mL of NaOH has been added in both the titration of HCl and of HC2H3O2. Indicate if the volume of NaOH is before or after the equivalence point. Compare these theoretical values with the actual values found on the titration ...

*July 14, 2010 by agreed*

**Chemistry**

Question from text: "The reaction between phosphorus and chlorine is described by the equation, P4(s) + 6 Cl2(g) ↔ 4 PCl3(l). At equilibrium, the concentration of Cl2 is found to be 0.87 M. Calculate Keq." Keq = [PCl3]^4 / [P4] [Cl2]^6 I am not seeing how to solve this ...

*January 28, 2016 by Jennifer*

**Chemistry**

0.717 g of a compound containing carbon, hydrogen, and oxygen is burned and found to produce 1.02 g CO2 and 0.624 g H2O. The molar mass of the compound is 124 g/mol. (a) Write a chemical equation for the combustion of this unknown hydrocarbon. (b) Determine the # of g and ...

*August 24, 2011 by Anonymous*

**physics**

a) What is the frequency of a photon of UV radiation ( = 2.00 x 10^-7 m)? (b) Calculate the energy of a photon of UV radiation. (C) What is the frequency of a photon of infrared radiation ( = 1.083 x 10^-6 m)? (d) Calculate the energy of a photon of infrared radiation. (e) How...

*February 11, 2012 by hannah*

**Physics "Space Travel"**

Suppose you want to go to the immense red giant Betelgeuse, which is about 500 light years away. (A light year is the distance that light travels in one year.) You plan to travel at constant speed in a 1000 ig rocket ship. A: If the rocket ship's speed is 0.500 c, calculate ...

*April 17, 2008 by Chelly*

**math**

A cone has a radius of 6 inches and a height of 9 inches a) calculate the volume of the cone. use pi. as my answer for part a i got 339.92 cubic inches,,,,,,, Is my answer correct ?? I need help doing part b and c. b) calculate a possible radius and height of a cylinder that ...

*November 24, 2012 by karen*

**Physics**

a student performing the centripetal force experiment added some mass to the 25.0g acceleration block. when he did the experiment, he found that the speed at which the accelerated block separate from the magnet was 102 m/s^2. The radius of the circular motion before breakaway ...

*October 14, 2015 by parna deljo*

**Physics**

a student performing the centripetal force experiment added some mass to the 25.0g acceleration block. when he did the experiment, he found that the speed at which the accelerated block separate from the magnet was 102 m/s^2. The radius of the circular motion before breakaway ...

*October 14, 2015 by Layla Smith*

**physics**

Two crates A and B connected together by a light rope are pulled along a factory floor by an applied force, F. Crate A has a mass of 50 kg and the coefficient of friction (μ) between crate A and the floor is 0,25. Crate B has a mass of 35 kg and μ between B and the ...

*June 3, 2012 by Nick*

**ap chemistry**

The weak acid HQ has pKa of 4.89. 1)Calculate the [H3O+] of .035 M HQ. 2)Calculate the (OH-) of 0.500 M HQ ....Am I correct? a) pKa = 4.89 => - log(Ka) = 4.89 => Ka = antilog(- 4.89) = 10-4.89 = 1.29x10-5 1. Given concentration of HQ, C = 0.035 M Dissociation of HQ is ...

*October 4, 2015 by patrick*

**Physics**

A storage tank of negligible mass and 30m high is filled with gasoline. Please calculate the following. Use density values found in the book. a) The gauge pressure and absolute pressure at the bottom of the tank. b) The force that acts on a square access hatch at the bottom of...

*December 9, 2015 by Kati*

**Calculus - average velocity**

*VELOCITY OF A CAR* Suppose the distance s (in feet) covered by a car moving along a straight road after t sec is given by the function s = f(t) = 2t^2 + 48t. a. Calculate the average velocity of the car over the time intervals [20,21], [20, 20, 20.1], and [20, 20.01]. b. ...

*September 21, 2008 by B <3*

**math**

The ratio of Juma’s and Akinyi's earnings was 5:3. Juma’s earnings rose to shilling 8400 after an increase of 12%. Calculate the percentage increase in Akinyi’s earning given that the sum of their new earnings was shilling 14100. (b) Juma and Akinyi contribute all the ...

*February 24, 2015 by David*

**for Drbob222**

how do I calculate pressure exerted by H2 in a Mg and HCl reaction? (weighing by redox)

*October 29, 2007 by Rebecca*

**chem**

2 HNO3(aq) + Na2CO3(s) 2 NaNO3(aq) + H2O(l) + CO2(g) (a) Calculate H° for this reaction. kJ

*November 26, 2007 by mel*

**ETH 125**

What are some measurements sociologist use to calculate prejudice.

*January 25, 2008 by AXIA*

**sociology**

Describe other measurements sociologists use to calculate prejudice.

*April 5, 2008 by someone*

**PHYSICS**

Calculate the power output of a 1.3-g fly as it walks straight up a windowpane at 2.5 cm/s

*April 10, 2008 by Lizbeth*

**Chemistry**

How do you calculate the pH, pOH, [H3O] and [OH] for a 0.067 M solution of sodium iodate

*April 14, 2008 by LT*

**Geomotry**

How do you calculate the square footage on the surface of a cylinder if you know the diameter and length?

*April 15, 2008 by Dennis*

**Chem II**

Calculate the pH of the solution made by mixing 35.0 mL of 0.500 M ca(OH)2 with 45.0 mL of 0.710 MHCl

*April 16, 2008 by Ken*

**history**

describe other measurements sociologist use to calculate prejudice?

*June 6, 2008 by tony*

**ict**

you need to write one of these to calculate things on spreadsheets? 7 letters

*June 21, 2008 by jasmine*

**chemistry**

Calculate the number of english tons(2000 lb per ton) in 6.03 lb

*August 19, 2008 by Lauren*

**Psychology**

Describe other measurements sociologists use to calculate prejudice.

*August 27, 2008 by Marty*

**Chemistry**

Given that for ethanoic acid pKa=4.75, calculate the pH of sodium ethanoate 0.1M.

*September 26, 2008 by Alice*

**CHEMISTRY**

CALCULATE THE FORMULA UNITS IN 285G OF IRON (111)PHOSPHATE?

*September 28, 2008 by DANIEL*

**thermochemistry**

Calculate the amount of heat liberated (in kJ) from 374 g of mercury when it cools from 83.7°C to 19.1°C.

*October 5, 2008 by james*

**Science**

Calculate the density of bromine if 586g of the substance occupies 188mL

*October 16, 2008 by Thao*

**Math help**

Solve: x+5=x^2 I have (1+- sqrt 21)/2 Is that right or did I calculate something wrong?

*November 9, 2008 by Shawn*

**math**

how do you calculate the volume of a cylinder? radius: 13cm height: 11cm

*November 10, 2008 by sidlord*

**Math/Science/Astronomy**

What is the formula to calculate the illumination fraction of the Moon?

*December 24, 2008 by Anonymous*

**chemistry**

Calculate the number of C, H, and O atoms in 4.50 g of glucose (C6H12O6), a sugar. help please?

*January 5, 2009 by lyne*

**Chemistry -- plz help**

how do i calculate the percentage of ionic character .. ex. H-O = electronegativity difference = 1.2

*January 7, 2009 by Jen*

**Eth125**

Describe other measurements sociologists use to calculate prejudice.

*January 11, 2009 by Ashley*

**Chemistry**

i need help. Calculate the pH of a 0.24 M CoCl3 solution. The Ka value for Co(H2O)63+ is 1.0 10-5. how do u do these with like the Cl there?

*February 15, 2009 by Lindsey*

**physics**

If the planes mass with them in it was 318kg, calculate the force due to weight?

*March 20, 2009 by danny*

**Chem**

what are the four quantum numbers of the last electron of As this is what i have n=4 l=1 ms= 1/2 i don't know how to calculate ml. I know it's either: -1,0,1

*March 30, 2009 by Laura*

**Chemistry**

Calculate the solubility of silver chloride in a solution that is 0.140 M in NH3.

*April 5, 2009 by Jack*

**Chemistry**

Calculate the Ph of an aqueous solution that is 3.00% KOH, by mass, and has a density of 1.0242 g/ml.

*August 5, 2009 by Anonymous*

**arithmetic**

calculate this question and write each answer in standard form. (4.5*10^12)dvided by(9*10^10)

*August 31, 2009 by Eman*

**Chemistry**

How would you calculate the number of atoms for 1.004 mol bismuth

*September 21, 2009 by Brooke*

**chemistry**

Calculate the amount of heat (in calories) released when the 1.2 g sample was burned.

*November 23, 2009 by Joevonie*

**math**

Write an equation to calculate the fees F when the number of credits n is given?

*December 18, 2009 by Ella Mae*

**college chemistry**

how do I calculate the amount of heat lost by the metal, qmetal?

*January 16, 2010 by Bertha*

**Chemistry**

it says: calculate the number of grams of NH3 produced when 21.0 g of H2 react with N2.

*January 21, 2010 by Judy*

**maths**

another question ? A is an acute angle and sin A=3/5 calculate the value of tan A ??

*February 8, 2010 by Amy*

**metro**

Calculate the pH of the buffer solution that results when 10 mL of 0.10 M NaH2PO4 is added to 3 mL of 0.05 M NaOH.

*March 17, 2010 by pat*

**microeconomic**

please show me how to calculate price elasticity of demand of $3.00 increase to $3.50

*March 27, 2010 by susie quick*

**college chemistry**

How do you calculate delta[S2O8 2-] in iodine clock reaction?

*March 31, 2010 by vickie*

**Physics**

calculate the kinetic energy, in J, of a 1200kg automobile travelling at 36km/h

*April 7, 2010 by john*

**chemistry**

Calculate the solubility (in g/L) of silver carbonate in water at 25°C if the Ksp for Ag2CO3 is 8.4 x 10^-12

*April 17, 2010 by Bababa*

**chemistry**

Calculate the molar mass of baking powder (NH4)2CO3

*April 18, 2010 by Tracey*

**calculus**

to the nearest metre x=24m and y=6m. Calculate the upper bound for the value of xy

*May 10, 2010 by Anonymous*

**Chemistry**

Calculate the [H3O+] when 1.65 grams of KOH are dissolved in 500.0 mL of solution

*May 12, 2010 by Amrita*

**chemistry**

calculate the volume of .100 M KOH required to titrate 50 ml of .15 M HCl

*May 18, 2010 by jared*

**chem**

calculate the solubility of Ca(OH)2 in a 0.469M CaCl2 solution at 31 degrees C, Ksp of Ca(OH)2 is 4.96 X 10*-6

*June 2, 2010 by Chloe*