Predicting mass of a product??
968504
The balanced reaction is:\n3C + 2SO2  ---->  CS2  +  2CO2\n\nNotice that in the balanced reaction that the number of moles of sulfur dioxide that react and the moles of carbon dioxide produced are the same.\n\nSince the molar mass of SO2 is 64g/mol and you are starting with 8.00 grams, this means that you are starting with 1/8 of a mole of sulfur dioxide.  Since carbon dioxide is produced at the same amount, 1/8 of a mole of CO2 will be produced.
349502
Find the weight the object (with a precision scales) and its volume (put it in water and look at the amount displaced).\n\nCalculate the density = weight (in gram) / volume (in milliliter)\n\nYou will find a number lying between 19.3 (density of pure gold) and 8.92 (density of pure copper). Say you found 18 gram/ml\n\nThen the amount of gold is   (18-8.92)/(19.3-8,92) = 87.5% gold
280201
Density = mass/volume
921703
Just let the units tell you what to do.  H=mass* T*sp heat.  with T in K
950743
theoretical amount of product=10g lead acetate/ mw lead acetate x mw lead iodide\n\ntake the result of this formula as the denominator and divide 5.00 grams product/theoretical x 100%
93491
shape it into a brick divide its mass by its volume
406596
no idea...but I think you use the formula (Gravitational constant x mass 1 x mass 2) / distance squared
994556
Contact an import/export company and send them a sample of your product. They will in turn look for buyers of your product. Can you produce the product on a mass scale?
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If the density is 'd' kg/m^3 then the weight is '9.81d' Newton. [remember weight is force]
325473
Measure the weight of 1 cup of sand and figure it from there.\n\n :-)
860730
Multiply moles by the molecular weight (grams per mol) to get mass (grams).
1144840
mass divided by volume\nmeasured in kgm^-3
606521
Try this:\n\nhttp://education.yahoo.com/reference/weights_and_measures/
119352
All is clear once you understand the difference between mass and weight.\n\nIf you are not sure, look here:
857152
I'll agree that you need help.  Density is mass/vol.  You've given the density, you need another value to calculate the remaining value.
92955
The mass of an object is NOT the same as the weight. \n\nWeigh the object. In the avoirdupois system the weight is in pounds. In the metric system, the weight is in newtons. \n\nDivide the weight by the local acceleration of gravity (roughly 9.8 m/sec^2 for the metric system, and 32 ft/sec^2 for the avoirdupois system). The result is the mass of the system. In the metric system, the unit of mass is the kilogram. In the avoirdupois system, the unit of mass is the slug. \n\nThe local acceleration can vary from location to location on the earth, so one way to estimate the local acceleration is by using an object of known mass. Weigh the known mass, and divide its weight by the known mass to find an estimate of the local acceleration. \n\nThere are many other methods for finding the mass including multiplying the volume of the object by its density. The volume can be found by measuring it, or submerging the object in water (or other liquid) and measuring the amount of displaced water (or liquid).\n\nGravitational mass is the same as inertial mass, for unknown reasons, so one could also devise methods that estimate inertial mass. For example, one could measure the centrifugal force on a string attached to the object while it is being spun (by introducing a spring in between, and measuring the stretch of the spring, for example). One could stage an elastic impact between the object and another object of known mass, and knowing the velocities before and after impact, compute the mass of the object. \n\nThere are many many other methods one could use.
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some calculators can do this\n\nmathematica software will do it