Number of results: 68,701

**math**

the ratio of corresponding sides of two similar triangles is 2:3 ,if the longer side is 5cm ,calculate the length of the shorter side

*March 12, 2017 by Sharron.b*

**AP Chemistry**

An aqueous antifreeze is 40.0% ethylene glycol (C2H6O2) by mass. The density of the solution is 1.05 g/cm3. Calculate the molality, molarity, and mole fraction of the ethylene glycol.

*November 28, 2009 by Angel*

**math**

calculate the number of molecule h2s04 present in 250ml of 98% by mass of sulphuric solution. Density of solution is 1.84g/ml Answer 4.6N How do calculation step by step

*December 21, 2013 by Fai*

**Geometry**

The surface of a cube is painted red and blue, 3 sides of each. The cube is cut into 27 equal sized smaller cubes. Find both answers to the question, "How many cubes have at least 2 sides painted blue?" and "How many cubes have at least 1 side painted red?" I have no idea how ...

*January 24, 2015 by Cathy*

**Camestry**

Calculate the mass of 0.250 L of ethyl acetate , if the density of ethyl acetate is 0.90g / ml .

*September 18, 2016 by Bryan*

**Chem**

Consider a glass of 277 mL of water at 25°C. Calculate the mass of ice at -15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved. To find the mass of water use the density of water = 1.0 g/mL. I have no idea how to start this. I guess i hae...

*February 1, 2011 by Don*

**Chemistry Plz Help!**

How to calculate dimensional analysis using the density and molarity to calculate the percent (w/w)???

*October 17, 2016 by Barbie*

**Math**

1. Which solid has two bases that are triangles and three lateral surfaces that are rectangles? (1 point)triangular pyramid rectangular prism triangular prism rectangular pyramid 2. A solid with two parallel and congruent bases cannot be which of the following? (1 point)cone ...

*March 13, 2017 by Brooke Winans(commonwealth connections acedemy)*

**algebra**

1. Which solid has two bases that are triangles and three lateral surfaces that are rectangles? (1 point)triangular pyramid rectangular prism triangular prism rectangular pyramid 2. A solid with two parallel and congruent bases cannot be which of the following? (1 point)cone ...

*March 13, 2017 by Brooke*

**Calculus I**

The base of a solid is the circle x^2 + y^2 = 9. Cross sections of the solid perpendicular to the x-axis are squares. What is the volume, in cubic units, of the solid?

*April 22, 2016 by Jer*

**Chem**

I have a problem, the density of the metal = mass (2) - mass (1) over Volume (2) - Volume (1) = My first mass and volume are 15.098g and 5.5 mL. the second mass and volume are 11.3235g and 4.0 mL. I got 9.04g/mL as my answer if this isn’t right can you walk me through the ...

*September 27, 2010 by Jackson*

**Geometry PLEASE HELP**

1. If the surface area of a cube is 294 inches squared, find the volume. 2. If the base of a prism is an equilateral triangle with sides 8cm, and each lateral edge measures 10cm, what is the volume of the prism.

*March 3, 2013 by Gigi*

**Chemistry**

The average mass of a solid copper penny is 2.63 g . What is the mass of one mole of pennies? How would I solve this?

*August 29, 2010 by Amy~*

**CHEM HELP**

I asked this already but for some reason the answer I got isnt being accepted online Question: In the laboratory, 3.50 grams of salicylic acid were reacted with 7.20 ml of acetic anhydride (density equal to 1.08 g/ml). Determine the limiting reagent. I did: salicylic acid + ...

*November 27, 2012 by Yaw*

**Physics - Science**

Imagine a hollow sphere of radius R and mass M. It is welded to the end of a solid rod of length L, whose mass is also M. The rod is attached to the sphere in such a way that the whole assembly, when viewed from the side, looks like a lollipop. (That is, the axis of the rod, ...

*April 16, 2007 by Roxy*

**physics**

A ball of mass 0.075 kg is fired horizontally into a ballistic pendulum. The pendulum mass is 0.350 kg. The ball is caught in the pendulum, and the centerof mass of the system rises a vertical distance of 0.145 m in the earth's gravitational field. What was the original speed ...

*March 28, 2010 by sara*

**geometry**

Hexagon D and hexagon H are regular hexagons. The scale factor from hexagon D to hexagon H is 0.25. One side of hexagon D measures 18 cm. What is the length of one side of hexagon H?

*December 6, 2011 by Anonymous*

**sosial studies**

When 1.0 L solution Ba (NO3) 2 2.0 M at 25oC is mixed with 1.0 L solution of 2.0 M Na2SO4 in a calorimeter, the reaction that occurs to produce solid barium sulfate and temperature of the mixture increased to 28.1 oC. Calculate the enthalpy change per mole for the reaction ...

*November 20, 2013 by Norsiah*

**Physics**

1- A mass m is pushed against a spring of spring constant k = 12000 N/m. The mass slides on a horizontal smooth surface except for a rough one meter long section, and then it encounters a loop of radius R as shown in the figure. The mass just barely makes it around the loop ...

*May 25, 2013 by Maryam*

**college physics**

Estimate the rotational kinetic energy of Earth, assuming it to be a solid sphere of uniform density.

*May 14, 2010 by Adam*

**science**

what is the formula and answer for the following question... The density of Sprite is o.45g and the density of Pepsi is 2.4g. Both have a volume of 4 cm(cubed) What is the mass of both sodas?

*September 26, 2007 by help me!*

**physics**

Consider a balloon of mass 0.030 kg being inflated with a gas of density 0.54 kgm-3. What will be the volume of the balloon when it just begins to rise in air of density 1.29 kg m-3? [g = 10 ms-2]

*February 24, 2017 by Divine*

**science**

What is anything that has mass and takes up space? 1) Weight 2) Volume 3) Density 4) Matter When you measure the boiling point of mercury, you are investigating a ____. 1) Chemical change 2) Chemical property 3) Physical change 4) Physical property An object weighing 90 N has ...

*May 2, 2016 by jai*

**Geometry**

The surface of a cube is painted red and blue, 3 sides of each color. the cube is then cut into 27 equal sized smaller cubes. A: How many cubes have at least 2 sides painted blue? B: How many cubes have at least 1 side painted red?

*October 25, 2008 by ?*

**Geometry**

The surface of a cube is painted red and blue, 3 sides of each color. the cube is then cut into 27 equal sized smaller cubes. A: How many cubes have at least 2 sides painted blue? B: How many cubes have at least 1 side painted red?

*October 25, 2008 by ?*

**chemistry**

What is the density of a piece of zinc that has a volume of 8000 cubic cm? density= mass/ volume

*September 21, 2014 by joe*

**calculus**

The base of a solid is the circle x2 + y2 = 9. Cross sections of the solid perpendicular to the x-axis are equilateral triangles. What is the volume, in cubic units, of the solid?

*June 21, 2015 by Anonymous*

**calc**

he base of a solid in the xy-plane is the circle x^2 + y^2 = 16. Cross sections of the solid perpendicular to the y-axis are semicircles. What is the volume, in cubic units, of the solid?

*June 27, 2015 by Anonymous*

**Calculus**

The base of a solid is the circle x2 + y2 = 9. Cross sections of the solid perpendicular to the x-axis are semi-circles. What is the volume, in cubic units, of the solid?

*February 14, 2016 by Belle*

**ap chemistry**

A star is estimated to have a mass of 2 X 10^36 kg. Assuming it to be a sphere of average radius 7.o X 10^5 km. Calculate the average density of the star in units of grams per cubic centimeter

*July 5, 2010 by wesley*

**Solid Geometry**

Find the Lateral area in cm square of the following right pryramid. 1. Base is regular octagon of side 20cm and altitude of 20cm. 2. Base is regular hexagon of side 20cm and altitude of 30cm. 3. Base is regular hexagon of side 30cm and slant height of 50cm.

*August 16, 2016 by Rain*

**Algebra**

The question A granite cube is 10 times that of another granite cube. The pressure exerted by the larger cube on its base is how many times more the pressure exerted by the smaller cube on its base?

*November 26, 2011 by Frank*

**Chem**

A tablet containing calcium carbonate and fillers with a mass of 1.631 g was dissolved in HCl. After the fillers were filtered out, the HCl was neutralized by adding sodium carbonate. The resulting precipitate was pure calcium carbonate (with the fillers removed). The solid ...

*March 8, 2017 by Lynn*

**Chemistry**

A tablet containing calcium carbonate and fillers with a mass of 1.631 g was dissolved in HCl. After the fillers were filtered out, the HCl was neutralized by adding sodium carbonate. The resulting precipitate was pure calcium carbonate (with the fillers removed). The solid ...

*March 13, 2017 by Erin*

**physics**

The weight of the atmosphere above 1 m^2 of Earth's surface is about 100,000 N. Density, of course, becomes less with altitude. But suppose the density of air were a constant 1.2 kg/m/s^3. Calculate where the top of the atmosphere would be.

*March 28, 2012 by Kristie*

**physics**

The weight of the atmosphere above 1 m^2 of Earth's surface is about 100,000 N. Density, of course, becomes less with altitude. But suppose the density of air were a constant 1.2 kg/m/s^3. Calculate where the top of the atmosphere would be.

*March 29, 2012 by Jim*

**physics**

The weight of the atmosphere above 1 m^2 of Earth's surface is about 100,000 N. Density, of course, becomes less with altitude. But suppose the density of air were a constant 1.2 kg/m/s^3. Calculate where the top of the atmosphere would be.

*March 31, 2012 by C*

**chemistry**

Calculate the density of M&M’s given the following data: Mass of 250.0 mL beaker = 197.816 g Mass of beaker and 20 M&M’s = 342.816 g Volume of water in graduated cylinder = 8.0 mL Volume of water in graduated cylinder and 10 M&M’s = 18.5 mL (Points : 3)

*January 10, 2013 by bob*

**Earth Science**

How you would determine the density of a block that measures 3 cm X 3cm X 3cm.

*January 6, 2013 by Anonymous*

**bio**

there are 34 students in class that measures 130 square meters. what is the density of students?

*October 27, 2015 by leo\*

**physics**

A lobsterman's buoy is a solid wooden cylinder of radius r and mass M. It is weighted on one end so that it floats upright in calm sea water, having density . A passing shark tugs on the slack rope mooring the buoy to a lobster trap, pulling the buoy downward a distance x from...

*November 30, 2009 by Keith*

**science**

an ice cube, a glass of cold water, and a swimming pool are each exposed to the same amount of sunlight on a hot day. after five minutes, the ice cube is melted and the cold drink is two degrees warmer, but the temperature of the swimming pool remains unchanged. what is the ...

*February 21, 2015 by Oscar*

**Physics**

On a hot summer day, you've got nothing better to do than play with ice cubes. You are currently sliding a 75 gram Ice Cube up and down a basically frictionless slope. At the bottom of the slope, which is inclined at 30 degrees relative to the horizontal, Is a spring with a ...

*December 1, 2016 by Anonymous*

**CHM1045**

NH4NO3(s) right arrow NH4+(aq) + NO3−(aq) In order to measure the enthalpy change for this reaction, 1.21 g of NH4NO3 is dissolved in enough water to make 25.0 mL of solution. The initial temperature is 25.8°C and the final temperature (after the solid dissolves) is 22....

*March 30, 2013 by Philip Golden*

**chemisrty**

Q1) A solution of ascorbic acid (C6H8O6, Formula mass = 176 g/mol) is made up by dissolving 80.5 g of ascorbic acid in 210 g of water, and has a density of 1.22 g/mL at 55 oC. Calculate the following: a) the mass percentage of ascorbic acid b) the mole fraction of ascorbic ...

*January 16, 2012 by lyan*

**math**

Shane takes a big cube of butter with sides of length 5 from the refrigerator. He then cuts out a little cube with sides of length 2 from one of the corners of the cube. Write a numerical expression with exponents that describes the volume of butter left.

*August 11, 2014 by Anonymous*

**math**

A 4 ft spring measures 8 ft long after a mass weighing 8 pounds is attached to it. the medium through which the mass moves offers a damping force numerically equal to sqrt.2 times the instantaneous velocity. Find the equation of motion if the mass is initially released from ...

*February 26, 2012 by pam*

**science**

I am SOOOO stuck on this science question!! It's not that hard but, science isn't my forte..... here it is...." If the mass of the brick is 50 grams and it's volume is 9cm cubed, calculate the density of the block using the formula D = m/v." HELP PLEASE!!!!

*December 13, 2010 by Rachel Bond*

**chemistry**

When 2.5g of ammonium dichromate is heated, the mass of nitrogen and water vapor released is 1.0g. What is the final mass of the solid product?

*October 14, 2014 by Enid*

**chemistry**

An aqueous solution of Na2SO4 has a molal concentration of 0.293 mol kg-1. Its density is 1.0350 g mL-1. Calculate the molar concentration of Na2SO4. ----- mol L-1 Calculate the mass percent of Na2SO4 in the solution. ------- % What is the mole fraction of Na2SO4 in the ...

*May 2, 2010 by write2khin*

**physics**

Each of the following objects has a radius of 0.169 m and a mass of 2.02 kg, and each rotates about an axis through its center (as in this table) with an angular speed of 38.6 rad/s. Find the magnitude of the angular momentum of each object. (a) a hoop kg · m2/s (b) a solid ...

*March 8, 2015 by alba*

**Math**

Brittany has a gift box in the shape of a cube. Inside of the box measures 15 cm. What is the volume of the gift box.?

*January 30, 2017 by Alana*

**chemistry**

A solid sample is 81.0 g sodium per 1,000,000. g substance, and contains 1.92 × 10 ^21 sodium atoms, calculate the mass (g) of the sample.

*October 27, 2013 by Ale*

**math**

Suppose f(t) is the weight (in grams) of a solid sitting in a beaker of water and the solid is dissolving at a rate (in grams/minute) of f'(t) =-4 f(t)(3 + f(t) ). If there is 4 grams of solid at time t=2 minutes, use a linear approximation to estimate the solid's weight 1 ...

*October 24, 2015 by John*

**math**

Suppose f(t) is the weight (in grams) of a solid sitting in a beaker of water and the solid is dissolving at a rate (in grams/minute) of f'(t)=-4 f(t)(3 + f(t) ). If there is 4 grams of solid at time t=2 minutes, use a linear approximation to estimate the solid's weight 1 ...

*October 24, 2015 by John*

**Science**

1. The surface tension in a cup of water is caused by ____. (1 point)attractive forces between the water and its container attractive forces between water molecules adhesive forces between water molecules adhesive forces between the water and its container 2. The measure of ...

*April 11, 2012 by jhai9*

**physics**

A solid block of mass m2 = 8.3 kg, at rest on a horizontal frictionless surface, is connected to a relaxed spring. The other end of the spring is fixed, and the spring constant is k = 210 N/m. Another solid block of mass m1 = 12.4 kg and speed v1 = 4.9 m/s collides with the 8....

*April 14, 2013 by Nicole*

**Physics**

A cube of mass M=0.703 kg is placed on an incline and given a push. It slides down, and its speed down the incline is measured at two positions, [1] and [2] on the diagram below, with V1 = 0.923 m/s and V2 = 1.207 m/s. Note that the incline passes through at least two grid ...

*February 17, 2011 by Sarah*

**physics**

Two trains approach one another. Train A has a mass of 500,00 kg and is moving at 34.0 m/s. Train B has a mass of 350,00 kg and is moving at 42 m/s. They collide and stick together. What is the velocity and direction of the combined masses

*May 13, 2016 by Angie*

**Science**

In an experiment ti determine the density of a liquid the following pieces of information were obtained. Mass of empty bottle=50g Mass of bottle and liquid=85g Volume of liquid=100cm^3 Use the information to determine the density of the liquid

*October 23, 2016 by Patrick*

**Chemistry 111**

The heat of fusion for a solid is .825kJ/mole. the formula weight of the solid is 150.24. How many grams of this solid can be melted by 305J of energy?

*April 13, 2011 by Janna*

**math**

Assuming the solid is constructed from cubes measuring 1 unit on each edge and that the figure is completely solid, what is the volume of the cubic solid shown above?

*May 26, 2011 by kesi*

**calc**

The base of a solid in the region bounded by the graphs of y = e^-x y = 0, and x = 0, and x = 1. Cross sections of the solid perpendicular to the x-axis are semicircles. What is the volume, in cubic units, of the solid?

*June 15, 2015 by Anonymous*

**chemistry**

At 23°C, Kp = 0.075 for the equilibrium: NH4HS (s) ↔ NH3 (g) + H2S (g) A sample of solid NH4HS is placed in a closed vessel and allowed to equilibrate. Calculate the equilibrium partial pressure (atm) of ammonia, assuming that some solid NH4HS remains.

*September 14, 2012 by Nicole*

**chemistry**

Gallium crystallizes in a primitive cubic unit cell. The length of an edge of this cube is 362 pm. What is the radius of a gallium atom? The face-centered gold crystal has an edge length of 407 pm. Based on the unit cell, calculate the density of gold. Type of atom Fraction in...

*November 24, 2008 by ea*

**Math**

A solid is made up of two rectangular prisms how would I find the surface area of the solid? The diagram shows 3 feet on top, 6 feet on the left side, 7 feet on the bottom, 2 feet and 4 feet to the right Our teacher gave us the answer of 156 then told us to figure out how she ...

*April 28, 2015 by Josh*

**Math (geometry)**

A diagonal of one cube is 2 cm. A diagonal of another cube is 4*sqrt3 cm. The larger cube has volume 64 cubic cm. Find the volume of the smaller cube. --------------------------------------------------------------------------------------------------- There was this theorem ...

*April 3, 2008 by Emily*

**sCIENCE PLZZZZZZZZ HELP**

1. The surface tension in a cup of water is caused by ____. (1 point)attractive forces between the water and its container attractive forces between water molecules adhesive forces between water molecules adhesive forces between the water and its container 2. The measure of ...

*April 11, 2012 by jhai9*

**thermodynamics**

2. If a pump discharges 284 liters per minute of water whose density is 985 kg/m3 . Find (a) mass flow rate in kg/min; (b) the total time required to fill a vertical cylindrical tank 3.05 m in diameter, and 305 m high. Note: m = Q x ρ, where m= mass, Q=volume flow rate...

*February 8, 2016 by binjok*

**math**

The measures of two sides of a triangle are 9 and 15. Use an inequality to express the range of the measure of the third side,m.

*November 26, 2006 by Susie*

**geometry**

The legs of an isosceles triangle are each 18 cm long and the angle between them measures 48 degrees. What is the length of the third side?

*March 25, 2010 by cori*

**math**

What are the measures of the angles of a right triangle with side lengths of 1, 2, and sqroot of 2? please show/explain work

*November 7, 2010 by bob*

**geometry**

Triangle DEF where angle E is a right angle. DE measures 55. EF measures x. Angle D measures 49 degrees. What is the value of x rounded to the nearest hundredth? Type the numeric answer only in the box below.

*February 8, 2015 by Bella*

**Chemistry**

The density of platinum is 23.4 g/cm cubed. Calculate the mass of 75.0cm cubed of platinum.

*September 25, 2012 by Sparkle*

**unknown**

The density of platinum is 23.4 g/cm3 at 20°C. Calculate the mass of 75.0 cm3 of platinum at this temperature.

*August 15, 2013 by Anonymous*

**Math :)**

Since the purpose of an ice cube is to keep a drink cold, is it better for an ice cube to have a high volume or a low volume? I thought that the higher the volume, the longer the amount of time the ice cube does NOT melt. Which one is best? Thank you. :)

*April 10, 2016 by Mariana W.*

**Inperial**

A body weight 0.8N when it is in air and 9.5N when completely immerserd in water Calculate i) the density of the body ii) relative density of the body

*January 3, 2017 by Mercedez*

**Physics**

The current density of an ideal p-n junction under illumination can be described by: J(V)=Jph−J0(e^qV/kT−1) where Jph is the photocurrent density, J0 the saturation current density, q the elementary charge, V the voltage, k the Boltzmann's constant, and T the ...

*October 3, 2014 by qwerty*

**math**

Following are the lengths in yards of the nine holes of the University Golf Course: 480,460,450,380,360,350,330,180,160 Find each of the following measures with respect to the lengths of the holes: d. Standard deviation 36.07263

*June 16, 2009 by is this right!!!*

**Science**

What is anything that has mass and takes up space? 1) Weight 2) Volume 3) Density 4) Matter When you measure the boiling point of mercury, you are investigating a ____. 1) Chemical change 2) Chemical property 3) Physical change 4) Physical property Ab object weighing 90 N has ...

*April 6, 2016 by Lulu*

**college**

What is the mass of a 10.0 cm^3 cube of copper?

*August 27, 2010 by Mel*

**Math**

Solve for the length of the unknown side in the following right triangle. (Side AC is the hypotenuse.) Round your answer to two places, where applicable. Side AB ? Side BC=12 Side AC=19

*July 18, 2012 by Jim*

**chem 111**

What is the molarity of a solution of 10.0% by mass cadmium sulfate, CdSO4 (molar mass = 208.46 g/mol) by mass? The density of the solution is 1.10 g/mL.

*August 26, 2008 by jojo*

**Chemistry Help? Thanks**

At what temperature do KCL and KNO3 have the same solubility If a saturated solution of KNO3 at 20.0 C is heated to 80.0 how much more could be dissolved? If a saturated solution of KCL at 90.0 C is colled to 30.0 C how much of the solid will precipitate? How much NaCL will ...

*September 23, 2012 by Hannah*

**CHEMISTRY**

At what temperature do KCL and KNO3 have the same solubility If a saturated solution of KNO3 at 20.0 C is heated to 80.0 how much more could be dissolved? If a saturated solution of KCL at 90.0 C is colled to 30.0 C how much of the solid will precipitate? How much NaCL will ...

*September 23, 2012 by Mike*

**Chemistry**

What is the maximum mass of the lower molar mass product that can be formed when 71.0 g of solid barium bromide and 44.5 g chlorine gas react?

*April 10, 2011 by Robbie*

**Chemistry**

What is the maximum mass of the lower molar mass product that can be formed when 83.0 g of solid barium bromide and 20.5 g chlorine gas react?

*October 7, 2013 by Connor*

**Math**

I am doing a project, are my answers correct? 1. Find and simplify the volume-to-surface-area ratio for each of the three possible ice cube shapes. You can use this chart. |Shape| S/A Formula|Volume Formula Cube | S.A=6s^2 | V=s^3 6/s Sphere|S.A+4 pi r^2|V=4/3 pi r^3 3/r ...

*March 4, 2016 by Alexia Smith*

**Math**

Suppose Triangle ABC has right angle C. Find the measures of the other sides to the nearest whole number if...? the measure of angle A is 32 degrees, and the measure of AB is 42. For one side, I got 23, and for the other side, I got 35. Am I right?

*May 16, 2009 by Angie*

**chemistry**

What mass of sucrose should be combined with 491 g of water to make a solution with an osmotic pressure of 8.70 atm at 270 K? (Assume the density of the solution to be equal to the density of the solvent.)

*August 5, 2010 by ashley*

**College Physics**

assuming that sea water has a density of 1.05 g/cm^3, what is the density of a submarine running submerged? wouldn't you need to know some other information; like the mass or volume of the submarine?

*November 21, 2011 by Amy*

**P-Chem**

Can you check my answer? Thank you What is the molar mass of a gas that behaves ideally (i.e. obeys the perfect gas law pV=nRT) if it has a density of 1.92 g dm-3 at 150 kPa and 25 C? I got; M=p(density)RT/(P)=31.7 kg mol^-1

*September 6, 2016 by Jessy*

**physics**

D=m/V=m/ð•R^2•h Find the density of a 4.2- kg solid cylinder that is 13 cm tall with a radius of 5.0 cm. I am lost on the numbers to plug into this one please help

*March 24, 2012 by jim*

**Chemistry**

Boron Phosphide, BP, is a semiconductor, and a hard, abrasion resistant material. It is made by reacting Boron tribromide and phosphorus tribromide in a hydrogen atmosphere at high temperature (>750 degrees C) (a) Write a Balanced chemical equation for the synthesis of BP (...

*March 11, 2012 by Laffy Taffy*

**chemistry**

15. On October 21, 1982, the Bureau if the Mint changed the composition of pennies. Instead of an alloy of 95% Cu and 5% Zn by mass, a core of 99.2 Zn and 0.8% Cu with a thin shell of copper was adopted. The overall composition of the new penny was 97.6% Zn and 2.4% Cu by mass...

*September 12, 2010 by kelly*

**chemistry**

What is the molarity of a solution of 10% by mass cadmium sulfate, CdSO4 (molar mass = 208.46 g/mol) by mass? The density of the solution is 1.10 g/mL.

*March 14, 2008 by thanh*

**calculas**

how long will it take an ice cube to melt completely? You left out an ice cube ant 1/4 of it melts in 1 hour. Use the following steps to find out how long it will take before it is melted completely. 1-let s represent the side length of the ice cube, and observe that s is a ...

*March 6, 2011 by julie*

**Chem**

The mass of a beaker is 5.333g. After 5.00 mL of a concentrated hydrochloric acid solution is pipetted into the beaker, the combined mass of the beaker and the hydrochloric acid sample is 11.229 g. From the data, what is the measured density of the hydrochloric solution? these...

*September 2, 2015 by Amy*

**Astronomy**

The volume of a ball is given in terms of its radius by V=4π3R3. Use this to find the average density of Saturn, i.e. the mass per unit volume. Use Earth’s mass in kg from the Table of Constants to express your answer in kgm3. Note for comparison that water has a ...

*December 23, 2012 by sam*

**Chemistry**

If an oil molecule is 100*10^-10m in diameter,then can 10^24 molecules fit exactly in a cube 1m on a side? Please help me answer this showing working out.

*August 6, 2012 by Elie*