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What element has the mass number of 37?
The element with a mass number of 37 is chlorine (Cl).
How many moles are there in 37 grams of calcium hydroxide?
To find the number of moles in 37 grams of calcium hydroxide, you need to divide the given mass by the molar mass of calcium hydroxide. The molar mass of calcium hydroxide (Ca(OH)2) is 74.1 g/mol. Therefore, 37 grams of calcium hydroxide is equal to 0.499 moles.
What is the mass number for Argon-37?
You actually just answered your own question. The Isotope Ar-37 has a mass of 37. Most elements and Isotopes are commonly phrased like "Element-Mass"
How many moles are in 3.6 g H2 O?
Number of moles are calculated using the equation n=m/M where n is the number of moles, m is the mass of the substance and M is the molar mass of the substance. Molar mass of water = 18 g mol-1 Number of moles of water = 3.8 g /18 g mol-1 = 0.21 mol Number of moles of H in H2O =2 (the subscript next to the chemical symbol of an element indicates the number of moles of that element in that molecule) Number of moles of H in 3.8 g of H2O = 2 x 0.21 mol = 0.42 mol
How do you convert 37 percent HCL in normality?
Density of HCl = 1.186 g/mL Molar Mass HCl = 36.46g/mol We want a concentration in mol/L so we will first convert density into g/L (1.186 g/mL)(1000mL/1L) = 1186 g/L We must now know what density 37% of that is (0.37)(1186 g/L) = 438.82 g/L Now divide this density by the molar mass to cance out the g and give you mol/L (concentration) C = (438.82g/L)/(36.46g/mol) C = 12.04 M Since HCl is monoprotic, 1M = 1N. Therefore, 37% HCl is ~12N
What element has the mass number of 37?
The element with a mass number of 37 is chlorine (Cl).
How many moles are there in 37 grams of calcium hydroxide?
To find the number of moles in 37 grams of calcium hydroxide, you need to divide the given mass by the molar mass of calcium hydroxide. The molar mass of calcium hydroxide (Ca(OH)2) is 74.1 g/mol. Therefore, 37 grams of calcium hydroxide is equal to 0.499 moles.
What is the mass number for Argon-37?
You actually just answered your own question. The Isotope Ar-37 has a mass of 37. Most elements and Isotopes are commonly phrased like "Element-Mass"
How do you find relative isotopic mass?
its the same as the mass number e.g. oxygen(-16) is 16, carbon-12 is 12 but carbon-13 is 13 because it has an extra neutron i think anyway Really? I thought that the relative istopic mass was a ratio of the average atomic mass of the element compared to the average atomic mass of carbon. For example chlorine has an average atomic mass of 37 and carbons atomic mass is 12 so its 37 divided by 12 which is about 3:1.
What is rubidiums atomic mass?
Rubidium is a metal element. Atomic mass of it is 85.46.
What is the atomic number for an element with 37 neutrons and a mass number of 72?
The mass number is the amount of protons and neutrons in an element. The atomic number is equal to the amount of protons. Therefore to get the number of protons from the given information, you would subtract 37 from 72 which gives you 35 protons aka its atomic number!
Calculate NaCl in atomic mass?
By adding up the mass numbers of Na (23) and Cl (35 or 37). It is determined by the total of numbers of protons (11 and 17 respectively) and of neutrons (12 and 18 or 20), however it is not a sensible exercition to do, you cannot calculate anything with this figure.
What mass of iron is contained in 86.6 grams of CuFeS2?
To find the mass of iron in CuFeS2, we first calculate the molar mass of CuFeS2: Cu (copper) has a molar mass of 63.5 g/mol, Fe (iron) has a molar mass of 55.8 g/mol, and S (sulfur) has a molar mass of 32 g/mol. Adding these together gives a molar mass of 151.3 g/mol for CuFeS2. Next, calculate the mass percentage of iron in CuFeS2 by dividing the molar mass of iron by the molar mass of CuFeS2 and multiplying by 100. The percentage of iron is approximately 37%, so in 86.6 grams of CuFeS2, the mass of iron would be 0.37 * 86.6 grams = 32 grams.
How many moles aluminum exist in 100.0 grams of aluminum?
The formular you need is M = n/m (molar mass = amount of substance/mass), or n = m/MAluminium has a molar mass of 26.982 g/mol. The given mass is 3 grams. Therefore:n(Al) = 3g / (26.982g/mol) = 0.11mol
Why the masses of atoms of the same element may different?
Different isotopes of an element have different masses. This is because different isotopes of an element although they have the same number of protons (which defines the chemistry and therefore defines the element) have different numbers of neutrons.ExampleChlorine-35 Atomic Mass approx. 35 (17 protons, 18 neutrons)Chlorine-37 atomic mass approx. 37 (17 protons, 20 neutrons)
Chlorine with mass number-35 and a atomic number-17 and Chlorine with mass number-37 and a atomic number-17 How do they know that they are the same element?
Atomic number is unique to an element. Since both Chlorine-35 and Chlorine-37 has atomic number of 17, they are both Chlorine. However they have different atomic mass (caused by different number of neutrons in the atom) thus they are called isotope.
How many moles are in 3.6 g H2 O?
Number of moles are calculated using the equation n=m/M where n is the number of moles, m is the mass of the substance and M is the molar mass of the substance. Molar mass of water = 18 g mol-1 Number of moles of water = 3.8 g /18 g mol-1 = 0.21 mol Number of moles of H in H2O =2 (the subscript next to the chemical symbol of an element indicates the number of moles of that element in that molecule) Number of moles of H in 3.8 g of H2O = 2 x 0.21 mol = 0.42 mol
