The volume ratio of N2, O2 and CO2 is 1:2:3, which is 100g in total. The volume under standard condition is () A、60L B、30L C、11.2L D、112L

The volume ratio of N2, O2 and CO2 is 1:2:3, which is 100g in total. The volume under standard condition is () A、60L B、30L C、11.2L D、112L

The volume ratio of N2, O2 and CO2 is 1:2:3, and the mass ratio is 28:64:132
The volume ratio is the ratio of the amount of substance, 28 + 64 + 132 = 224 G is 6 moles, 100 g is 100 × 6 / 224 moles, then the volume is 22.4 × 600 / 224 = 60L

What is the volume of the mixture of N2, O2 and CO2 with a volume ratio of 1; 2; 3 in STP?

Average molar mass=
28*1/6+32*2/6+44*3/6
=37.3g/mol
Volume at STP = 100 / 37.3 * 22.4 = 60L

The mixture of N2, O2 and CO2 is 150g in volume ratio of 1:2:3?

The detailed process is as follows: from PV = NRT, when the pressure and temperature are constant, the volume ratio is equal to the mass ratio of matter. Let's suppose the mass of nitrogen is x mol, then the mass of oxygen and carbon dioxide are 2x and 3x respectively

If you calculate the weight of round steel, the length is 5m, the diameter is 110mm, and the density of iron is 7.85, you'd better explain the calculation formula in detail!

The weight of round steel = bottom area * length * density = 3.14 square of radius * length * density = 3.14 * 55 * 55 * 5000 * 0.00000785 = 372.816kg, which may be different from the actual weight

Given the density of iron, length, width and height. Calculate the weight! Density 0.78g/cm3, length 1000 * width 500 * height 250

The density of iron should be 7.8g/cm3
The length 1000 * width 500 * height 250 of iron given by you have no unit, and the unit of value without unit is mm
Weight = volume * density
Weight = length * width * height * density = 100cm * 50cm * 25cm * 7.8g/cm3 = 975000g = 975kg

Can proe5.0 measure the surface area of the whole part or the total weight of the assembled parts? How to apply the material density of the object,

Analysis by use quality attribute

The average illuminance formula of street lamp
How to calculate the average brightness of street lamp

The calculation formula is average illumination = f.u.k.n / S.W. (U is utilization coefficient, K is maintenance coefficient, s is installation distance of street lamp, W is road width, n is arrangement mode of street lamp)

Who knows how to calculate the weight of iron, who knows the formula?

Calculation formula of theoretical weight of angle steel / angle iron / flat steel / flat iron / steel plate / plate angle steel / angle iron: weight per meter (kg) = 0.00785 * (side width + side width side thickness) * side thickness flat steel / flat iron: weight per meter (kg) = 0.00785 * thickness * side width www.sdcxf.com Steel plate / plate: weight per meter (kg) = 7.85 *

Who knows the formula for calculating the weight of iron
How to calculate the weight of round steel and square steel?

Steel weight 1. Theoretical weight of steel the theoretical weight of steel is calculated according to the nominal size and density of steel (formerly known as specific gravity), which is called theoretical weight. This is directly related to the length, cross-sectional area and allowable deviation of steel

How to calculate the weight of iron (please tell me the formula)

Mass equals density times volume