How do you calculate the mass following;?
343969
you would also use one of the following equations typically depending on the other information your given, but for sure, you need to look up its chemical composition. (ex: water is H2O)\n\nif youre given concentration:\nconcentration=moles/volume\nmoles=mass/molar mass\nmass=moles*molar mass\nmass=(concentration*volume)(molar mass)\nkeep in mind molar mass can be found by adding and multimplying as necessary the atomic masses of each element in the compound.\n\nif youre given density (which i bet you can easily look up on google or something if youre not given that information):\ndensity=mass/volume\nmass=density*volume
535160
what do you want to calculate? gravitation? emission? something else?
1087435
well, first start with the molecular weight of gold (197 by definition), then divide it by the number of atoms in a mole (6.2*10^23), which gives you a mass of 3.18*10^-22 g.
143556
Density = Mass / Volume\n\nStep 1) Put the Apple on a scale to get its weight.\nStep 2) Mesuare apple to get its volume (use aproxomation)\nStep 3) Caclulate.
854081
You don't need the mass, just multiply u*g, to calculate the deceleration. After that use this equation:\n2*a*d = Vo^2, where a=u*g, u=coefficient of friction, g= gravity acceleration.\nVo initial velocity, then\nVo= sqrt(2*a*d) maybe the velocity was greater than that value.\nI hope this is useful for you.
123626
The equation for finding inertial mass is: m = F/a\n\nA known force F is applied, and acceleration (m/s^2) a is measured.
836848
first you'll start with Q=m*c*delta t to get the total energy of the aluminum. divide the grams of aluminum by its molar weight and then use Q=m*c*delta t where the Q's are the same, c for the water is 4.18 J/gC and then solve for the mass. good luck!
289324
simple F=m*a\nm=0.8\na= the acceleration due to gravity (9.8 ms^2)\nWeight is 7.84 N\nthe conversion should be in your textbook from newtons to lbs and from lbs to oz
1095815
Mass is the amount of matter present in a body and is an intrinsic property of the body. Mass of an object remains the same always at any place.\n\nWeight on the other hand is the force which a given mass feels due to the gravity at its place. Weight is measured in units of Force like Newton (which is the SI unit of Force).\nIf your mass is 60 kgs then your weight is approximately 60 x 10 = 600 Newtons. This is because\n\nForce = mass x acceleration (From Newton's second Law)\n\nThus, weight = mass x acceleration due to gravity
749866
From the final mass of the MgO, calculate the number of moles of Mg that are present.  Then use a little algebra.  3 times the number of moles of Mg3N2 plus the number of moles of MgO equals the total number of moles of Mg.  Convert all of the moles to the appropriate mass, and solve for the number of moles of Mg3N2.  I leave the solution as an exercise for the student.
608223
For moving objects, calculate kinetic energy using the formula:\nKE = (mass x velocity2)/2 or 1/2 mv2\n\nhttp://www.gmhsscience.com/problems/kineticpotential.htm
119352
All is clear once you understand the difference between mass and weight.\n\nIf you are not sure, look here:
374421
mass=density over volume\n\n=)
207775
Mass is only one variable in an equation... what are you trying to relate it to?\n\nweight = mass x gravity would be one equation for mass...
863271
mass doesn't matter here, just the acceleration\nv=u+at\na=(v-u)/t\na=(9-0)/0.15=60 m/s^2
831091
w = mg\n(w is weight, m is mass, g is acceleration due to gravity (9.8m/s^2))\n :. m = w/g\n        = 300 / 9.8\n        = 30.6 kg
626494
First one...you'd better look at Wikipedia.\n\nAbout the 2nd one...I don't understand what you mean.\nMaybe...\nDo you need to know how to find the mass of a substance, given the number of moles or vice versa?\n\nWell, you can use this formula:\n\nn= m/M\n\nWhere n=number of moles;\n      m=mass of the substance in grams\n      M=molecular weight or molecular mass of the substance.\n\nMolecular Mass:\nYou have to calculate it in this way:\nConsider the atoms that form that molecule.\nSum the atomic weight of these atoms: you'll obtain the Molecular Mass. If the atom appears twice, for example C2, you have to multiply the Carbon Atomic weight x2.\n\nDo you know how to find the atomic weight? look at the Periodic Table. \nGo to the linkage on the web. The Atomic Number is just below each element.\n\nhttp://www.chem.wisc.edu/areas/reich/handouts/periodic-table.GIF