A peak clutes from a column at 29.1 min, with a width at half height of 13.8 s. How many theoretical plates does this column have? N= The column length is 12.0 cm. What is the plate height in millimeters? plates mm

Q: Ammonium perchlorate (NH4CIO4) is the solid rocket fuel that was used by the U.S. Space Shuttle and…

A: Amount of ammonium perchlorate= 6.3gWe have to  calculate mass of oxygen.

Q: Give the symbol for an element that is 1) a transition metal in the fourth period from the following…

A: The symbol of elements can be written on the basis of the above provided description by using the…

Q: How many electrons does the predictable (mostcommon) ion of fluorine contain? (a) 1 (b) 4 (c) 9 (d)…

A:

Q: Do both members of the following pairs have the same number of protons? Neutrons? Electrons?…

A: An element is represented by the symbol XZA, where A is the mass number and Z is the atomic number.…

Q: 5. Why is t2 a comman Cxiceition Stete 7or the

A: Transitional elements (also known as d-block elements) are elements that have partially full…

Q: Calculate the molar mass of Al(C2H302)3. Aluminum is element 13; Carbon is element 6; Hydrogen is…

A: Check the atomic mass for each element and use it to calculate the molar mass of Al(C2H3O2)3.

Q: Which of the listed elements is most metallic?(a) Al (b) N (c) P (d) O

A: Which of the listed elements is most metallic? (a) Al (b) N (c) P (d) O

Q: What is the Chamical Name of the follawing: OI 2 Hz ZNO 3..Irclk 12 H, O

A: We have to tell the chemical name of the below-given compounds OI H2ZnO IrCl4.12H2O.

Q: If the formula of an oxide of element X is X₂03, what is the formula of the chloride of X? (A) XC13…

A:

Q: 66. Which element do you expect to be most like magnesium? Why?(a) potassium(b) silver(c) bromine(d)…

A: Magnesium = Its atomic number is 12, and present in Group 2 in the periodic table.

Q: 4. Identify the Z + 8 element for Si.

A: 4.   Given: Element is Silicon (Si) We have to find the element which is Z+8 for Si

Q: A 1.50-g sample of Na2SxO6 contains 6.68 x1021 sodium ions. Determine the value of x.

A: Given details, The mass of Na2SxO6 = 1.50 g Then, Na2SxO6 has two sodium ions.  Na2SxO6 having 6.68…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: To find the relative atomic mass of Molybdenum let us use the equation, Where, A is the relative…

Q: 68. Which pair of elements do you expect to be most similar? Why?(a) Ti and Ga(b) N and O(c) Li and…

A: The elements belonging to the same group exhibit similar properties. This is because the elements in…

Q: 4. How many grams are there in 0.4 mole of So,? (a) 35. 6

A: 4. Given : number of moles of SO2 = 0.4 mol  To calculate : mass of SO2 (in grams)

Q: B Na,S O,

A: 6) To write net ionic equation, follow the below mentioned steps: 1)Write balanced chemical…

Q: 1)    The element gallium (Ga) exists in two isotopic forms with the following abundances: 60.16%…

A:

Q: Classify each of the following fifth-row elements as a metal, a metalloid, or a nonmetal: (a) Y (b)…

A: The metals are elements that are aligned left side of the periodic table and have a tendency to lose…

Q: What is a proton ? what is a chemical?

A: A proton is a subatomic particle which is present in the nucleus of an atom along with the neutrons.…

Q: Shown above is a partial table of the isotopic masses and natural abundances of gallium and…

A: The objective of this question is to determine the 7:2 peaks using a mass spectrometer and analyze…

Q: What is the edge length (in cmcm) of a titanium cube that contains 2.41×10242.41×1024 titanium…

A:

Q: A sample of cesium metal reacted completely with water, evolving 2.028 mmol of dry H 2 at 19 degrees…

A:

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: We have been provided with data from mass-spectroscopic analysis, including the masses of ruthenium…

Q: Consider the balanced reaction 5 A + 5 B → 3 C + 6 D

A: 1 mole  B = 24.85 g of B 1 mole C = 20.23 g of C

Q: Describe the PHYSICAL PROPERTIES of the following Specifically, what type of matter is this? (e.g.…

A:

Q: Consider the following equation: The mass number of element X is: 213A + 23B 87C+ (x}x + 3 n

A: this problem is based on the conservation of mass. So mass in reactant will be equal to the mass in…

Q: Naturally occurring lithium consists of 6Li (6.0151 u) and 7Li (7.0160 u). What is the relative…

A: Mass of 6Li = 6.0151 uMass of 7Li = 7.0160 uAtomic mass of Li = 6.941 u

Q: The element xenon (Xe) was the last of the noble gases discovered by Sir William Ramsay, and the…

A: Given information: Atomic volume of argon = 22.56 cm3/mol Atomic volume of krypton = 27.99 cm3/mol

Q: Give the names of the following binary compounds beetween two nonmetals. (a) CC14 (d) PH3 (b) P4010…

A:

Q: Does any element with Z ≤ 92 match the description? An element in period 3 and group 8A.

A: Step 1: Period 3 Elements: The elements in Period 3 of the periodic table are Sodium (Na,…

Q: 85, 37X: (a) What is the atomic number? (c) How many protons are there? (e) What is the mass number?…

A:

Q: Does any element with Z ≤ 92 match the description? An element in period 6 and group 6A.

A: The question is asking if there is an element with an atomic number (Z) less than or equal to 92…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: given  isotope        mass       relative abundance 92 mo            91.91          98% 97mo…

Q: Q4- Calculate the radius and volume also the density of Gold Nuclei (Au).

A: The relation between the mass number of a nucleus and the radius of the nucleus is given as follows;…

Q: Is 1s22s22p6 the symbol for a macroscopic property or a microscopic property of an element? Explain…

A: Property of a molecule can be macroscopic or microscopic. Macroscopic property represents the…

Q: In the empirical formula of an oxide experiment, the value of x in MgXO was found to be 0.5;…

A: Given compound is MgxO. Given that x is 0.5. Therefore, the compound is Mg0.5O.

Q: Anhydrous CuSO4 is converted to CuSO4・xH2O to absorb water from certain liquids. What is the value…

A:

Q: 16) What's the atomic number of sulfur-34 ? A) 34 B) 18 C) 16 17) In the formula of hydroxylapatite…

A: According to our guidelines we can answer only three subparts

Q: Aunt Julie went to the jewelry store to buy a gift for her amiga. As an aunt from Poveda, she knows…

A: The karat scale is typically used to measure the purity of gold in jewelry. Pure gold is considered…

Q: 29. The mass spectrum shown is that of which element? (A) Y (B) Mo (C) Os (D) Zr O m/z Relative…

A: Every element exists as a different isotope and each isotope has a different relative abundanceThe…

Q: 5. The atomic mass of naturally-occurring chlorine is 35.45. From this you can deduce that (A)…

A: Given questions related to the concept of isotopes and kinetic energy of gas molecules.

Q: Naturally occurring silver consists of 107Ag (106.905 u) and 109Ag (108.905 u). What is the relative…

A: The relative abundance of an isotope is the percentage of a particular isotope that occurs in…