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What does gfm mean on gold jewelry?
What does gfm stamp mean on a gold chain necklace
How many grams of CuO will form from 140 grams of copper and excess oxygen?
2CuO --> 2Cu + O2 mole ratio between CuO and Cu 2:2 so 1:1 n = m/gfm gfm (Cu) = 63.546 m = 140g n = 140/63.546 n = 2.2 mole ratio 1:1 so n (CuO) = 2.2 m = gfm*n n = 2.2 gfm = 79.546 m = 175.0012g
Calculate the number of grams of CH3COOH in the vinegar?
depends of the mass volume and concentration of ethanoic acid for example 100ml, and a concentration of 1 mole/l moles = concentration*volume moles = 1*100/1000 (remeber volume is in litres) therefore there is 0.1 moles mass = moles*gfm gfm = 2*12 + 2*16 + 4 = 44 hence mass = 4.4grams
What is the gfm of anhydrous salt?
Based on the category, this answer will refer to sodium chloride, NaCl. Gfm is gram formula mass and is the same thing as molar mass. To find the gram formula mass of NaCl, you add the gram atomic masses (gam) from the periodic table (atomic weights) of the sodium and chlorine atoms in one formula unit. gam Na = 22.99g/mol gam Cl = 35.45g/mol Ggm of NaCl = 22.99g/mol + 35.45g/mol = 58.44g/mol
What are some good brands for a leather tote?
There are many hundreds of different brands of leather tote bags available. Some which are popular and well maid include Daseaux and GFM. The key is to look for a good Italian leather.
A 40-kg football player going through the air at 4 m s tackles a 60 kg player who is heading towards her at 3 m s in the air What is the speed and direction of the entangled players?
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How many moles of He are in 16 g of element?
using the formula: n=m/gfm no. of moles=mass/gfm you take the gram formula mass (gfm) as 4. and given the mass is 16g, both numbers can be substituted into the formula... n=16/4 = 4 the number of moles present in 16g of helium is 4 moles.
How do you prepare 0.2N Sodium chloride solution?
NaCl is the formula for Sodium Chloride, from that you can work out the gram formula mass. RAM Na = 23 RAM Cl = 35.5 gfm (NaCl) = 58.5g mol-1 assuming that you need 0.1l of NaCl m = 58.5*0.1 = 5.85g So dissolve 5.85g in water for a 0.2 mole solution
Can a convicted felon get into the us marine corps?
Felons Wanting to be Marines Beware! While I wouldn't "hold my breath" expecting a waiver from the Marine Corps for a felony conviction, "anything is possible" judging by the Navy/Marine Corps Criteria at the below site: : GFM Lt USMC Ret. Former 2X Recruiter
How many atoms of sodium are in 46.00 g of sodium?
n = mass / gfm n = 46/23 n = 2 n x 6.0221415 × 1023 = the number of any paricle in this case it is 1.2x1024
How much does one mole of iron atoms weigh?
Use the equation; mass=moles*gramformulamass or m=n*gfm m=2*55.8 = 111.6g in two moles of Iron gfm or the molecular mass of a compound can be found by adding the Relative atomic masses of each element in the compound together. For example - Carbon dioxide CO2 The formula contains 1 Carbon atom and 2 Oxygen atoms (RAMs should be found in a datasheet/book or provided in the question. RAM = relative atomic mass) RAM Carbon = 12 RAM Oxygen = 16 gfm of CO2 = 12 + 32 = 44 or 1mole of CO2 = 44g
