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Which has more molecules 16g of CO or 20g of N2?
20g of N2 has more molecules because nitrogen (N2) has a smaller molar mass (28.02 g/mol) compared to carbon monoxide (CO) which has a molar mass of 28.01 g/mol. This means that 20g of N2 contains more moles and, therefore, more molecules.
How many moles of carbon dioxide would be produced if 20.0 g of carbon reacts with 50.0 g of oxygen?
Stoichiometry! Set up the equation: C + O2 --> CO2.First, run it through for 20g of C: 12g/1mol=20g/x; x=1.67 mol, which in the equation, is also your moles for CO2 because everything's in a 1:1 ratio.Now, run it through for 50g of O2: 32g/1mol=50g/x; x=1.56 mol, which is also your moles for CO2 for the same reason as above.1.56 is less than 1.67, so 1.56 moles CO2 is the true answer (1.67 is an impossible scenario). The O2 is the limiting reactant (the carbon is the excess.) The 1.56 moles of CO2 produced is also equal to 34.94 liters (at STP) or 68.64 grams.
How much is 20g of copha?
20g of copha is roughly equivalent to 1.4 tablespoons.
Calculate the molarity of a solution that contains 20 grams of sucrose sugar in 385cm3?
First, convert grams to moles: 20g of sucrose is 20/342.3 = 0.058 moles. Then, convert cm^3 to L: 385 cm^3 is 0.385 L. Finally, divide moles by liters to get molarity: 0.058 moles / 0.385 L = 0.151 M.
If density equals volume mass then what is the density of 20g 10cm3?
To find the density of an object, you need to divide its mass by its volume. In this case, the mass is 20g and the volume is 10cm3. Therefore, the density would be 20g divided by 10cm3, which equals 2g/cm3.
How many moles of B in 20g of borax?
To calculate the number of moles in 20g of borax (Na2B4O7), we first need to find the molar mass of borax. By adding the atomic masses of all the elements in borax, we get a molar mass of approximately 201.22 g/mol. Then, we use the formula: moles = mass / molar mass. Substituting in the values, we find that there are approximately 0.10 moles of borax in 20g. Since there are four boron atoms in one molecule of borax, the number of moles of B (boron) would be 0.10 moles * 4 = 0.40 moles.
How many moles of so3 are in 20g of so3?
To find the number of moles, you first need to calculate the molar mass of SO3, which is 80.06 g/mol. Then, you can use the formula: moles = mass / molar mass. Thus, for 20g of SO3, you would have 20g / 80.06 g/mol = 0.25 moles of SO3.
How many moles in 20g of sodium hydroxide?
To determine the number of moles in 20g of sodium hydroxide, you need to divide the given mass by the molar mass of sodium hydroxide. The molar mass of NaOH is 40 g/mol (sodium: 23 g/mol, oxygen: 16 g/mol, hydrogen: 1 g/mol). So, 20g NaOH / 40 g/mol = 0.5 moles of sodium hydroxide.
How many grams of silver nitrate can be produced by the reaction of 100.0 ml of 0.20 M silver nitrate and 100.0 ml of 0.15 M calcium chloride?
To find how many grams of silver nitrate can be produced, first determine the limiting reactant. Calculate the moles of silver nitrate and calcium chloride in the given volumes and concentrations. The reactant that produces fewer moles of silver nitrate will be the limiting reactant. Then use stoichiometry to find the amount of silver nitrate that can be produced from the limiting reactant.
What happens if you put 20g of magnesium to hydrochloric?
When you put 20g of magnesium into hydrochloric acid, a chemical reaction occurs, resulting in the formation of magnesium chloride and hydrogen gas. The magnesium will dissolve in the acid, producing bubbles of hydrogen gas and a clear solution of magnesium chloride. The reaction is exothermic, meaning it releases heat.
Which has more molecules 16g of CO or 20g of N2?
20g of N2 has more molecules because nitrogen (N2) has a smaller molar mass (28.02 g/mol) compared to carbon monoxide (CO) which has a molar mass of 28.01 g/mol. This means that 20g of N2 contains more moles and, therefore, more molecules.
How many moles are in 3 moles of HF?
Moles = Mass/Molar Mass.Using this equation, we can take 25/(1.0 + 19) and find that it is equal to 1.25 moles.Keep in mind that very few significant figures were used for this example (2), and that if accuracy is to be expected, as many as possible should be used.
Calculate the Mass of magnesium sulphate that would be obtained from 4 grams of magnesium?
Masses: Mg= 24, S= 32, O= 16 Magnesium = 24g Magnesium sulphate = (24+32)+(16x4) = 120g. Therefor we know: 24g of Mg ----> makes 120g of MgSO4. To get to 4g from 24g, you devide by 6. (24 devided by 6 = 4g) And to find what it would make, you devide 120 by 6 too. Which = 20g. 4g of Mg ----> 20g of MgSO4.
How many atoms of nitrogen are in 20g of NH4NO3?
To find the number of atoms of nitrogen in 20g of NH4NO3, first calculate the molar mass of NH4NO3 (80.043 g/mol). Next, divide the mass of NH4NO3 by its molar mass to find the number of moles (0.2496 mol). Finally, multiply the number of moles by Avogadro's number (6.022 x 10^23) to determine the number of atoms of nitrogen (1.50 x 10^23 atoms).
What is the amount of H2O molecules in 20g of CuSO4.5H2O?
To find the number of water molecules in 20g of CuSO4.5H2O, we first need to calculate the molar mass of CuSO4.5H2O. The molar mass of CuSO4.5H2O is 249.68 g/mol. Then we can use the molar mass of CuSO4.5H2O to find the number of moles in 20g. Finally, as there are 5 water molecules in one formula unit of CuSO4.5H2O, we can calculate the number of water molecules corresponding to 20g of CuSO4.5H2O.
What would be the approximate pH of a 2wv solution of methadone hydrochloride in carbon dioxide free water?
Hi, I tried this one but got a weird answer, anyway...... pH = -Log[H+] (H+ ion conc. in mol/L) and there's one H+ per molecule of methadone HCl. At 2% w/v there is 2g in 100ml and therefore 20g in 1L. how many moles of MethadoneHCL in 20g? Calc using MW which is 346.5. You have ( 20/346.5 moles of the drug and hence 20/346.5 moles of H+ ions) a 1:1 ratio. That works out as 0.0577 moles of H+ and using formula a pH of about 1.24.
How much does 20g of rice weigh?
20g of rice weighs 20 grams.
