What mass of iron (d = 7.874 g/cm') does a 2.0 in x 1.5 in x 10.0 in sample have?

Q: [11/1 H ( #1111 Br A lin H

A:

Q: 2. Show that volt per meter is the same as newton per coulomb.

A: Given:- Show that volt per meter is the same as newton per coulomb.

Q: The radius of a lead atom is 175 pm. How many lead atoms would have to be laid side by side to span…

A: Given: Radius of each lead atom = 175 pm = 175 X 10-12 m                          (Since 1 m = 1012…

Q: Q2: F The Mass the earth is (5-95 x10) Ry- colenlak the Average dansly ?(hg/mt}

A: Mass of earth = 5.95 × 1024 kg

Q: Solve this

A: The element contains one type of atoms only. The compound has two or more elements. The chemical and…

Q: The density of copper is 8.94 g/cm°. What is the volume of copper in a 420 g sample? O 378 cm3 O 65…

A: Density of a substance is the ratio of mass to volume. The density is usually indicated by the…

Q: (a) Palladium (Pd) is an element with properties similar to those of platinum. It is useful in…

A: Given : Mass of bar = 96.03 g Length of bar = 10.7 cm Diameter of bar = 9.82 mm = 0.982 cm…

Q: 1. p + H + 87 2. He + ip 3. Mg + Si + 87

A: In this reaction 1 is nucleosynthesis  2nd is 3rd are steller formation

Q: 32. In which group do all the elements have similar chemical properties? a) P, S, Cl b) Ag, Cd, Ar…

A: In which set of element have similar chemical properties ?

Q: You are asked to perform an experiment to determine the density of square block below. In order to…

A: Concept: Density is defined as mass per unit volume. Density =massVolume

Q: What is the mass of phosphorus in a 45 kg person? .017 mass of P Incorrect

A: Determine mass of phosphorus in 45 Kg person?

Q: 1 mg is the same as O 1/10 cg O 100 cg 1/1000 kg 10 g

A: The symbol, mg is used to express the mass of substance.

Q: 12. What is an element? A compound?

A: An element and a compound has to be defined.

Q: two grains of a drug is equivalent to:  a. 129.6mg  b. 127.4 mg  c. 132.1 mg  d. 200 mg  e. 500 mg

A: Interpretation - Two grains of a drug is equivalent to , which one is correct -  a. 129.6mg  b.…

Q: If the density of water is 1.0 g/ml . How is the density of ice different from water when both are…

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

Q: On average, people use one teaspoon (2.5 g) of instant tea to make a 8-oz glass of ice tea. The…

A: 1 oz of iced tea contains 10 mg of caffeine.Therefore, 8 oz of iced tea contains 80 mg (0.08 g) of…

Q: a room contains 4.23 x 10^24 molecules of oxygen. what is the mass of oxygen in the room?

A: Number of mole of substance is calculated by dividing mass of substance (m) to molar mass (M) of it…

Q: A cube of an unknown metal measures 1.61 mm on one side. The mass of the cube is 36 mg. Which of the…

A:

Q: Since the Geologists at Grasberg know the density of gold to be 19.32g/cm^3 they were surprised by…

A: Density is defined as mass per unit volume of the substance  . Metals have high density as compared…

Q: The first box is the key. The second box represents.... 00 00 00 00 00 0 00 OO OO Atom Y: O Atom Z:…

A: Pure substances are those substances which are made up of only one type of elements. These cannot be…

Q: Zn + NaNO, + NaOH → NazZn02 + NH3 + H20

A: Given equation:

Q: Gold (Au) has a density of 19.32 g-cm-3. If a spherical gold nanoparticle has a diameter of 50 nm…

A: Density of Gold nanoparticle is 19.32 g/cm3 and its volume is 7*104 nm3.

Q: Q2. The surface area to volume ratio for nanoparticles is mits Much greater than for larger…

A: Nanoparticles and other particles are roughly of the size of a sphere.  Hence we can use the…

Q: It is estimated that an adult person contains 6.3 × 103 ppm phosphorus. What mass of phosphorus in…

A: By definition, ppm refers to parts per million.  Therefore, ppm of phosphorus in adult person would…

Q: What is the mass of 1.86x10^24 molecules of nitrogen

A: first find the no. of moles of N2  then find mass by multiply by its molar mass

Q: What is the mass of 4.00 cm^3 of sodium, with a density of 0.97 g/cm^3?

A: MATHEMATICAL TREATMENT OF MEASUREMENT RESULTS Learning Objectives By the end of this section, you…

Q: What is the edge length of a cube whose mass for aluminum is 3.44g? Density is 2.70 g/cm3 and Volume…

A: In this question, we want to determine the value of edge length.  You can see details Solution how…

Q: po, EXEI, UNuvijUEI OWUTU. = 192 g νερό. τάση για εμπέδωση Τι σημαίνει η έκφραση: cυδατικό διάλυμα…

A: 1. 3% aqueous sodium chloride means there is 3g of NaCl in 100g of water.

Q: White sand is made of silica (silicon dioxide, or SiO2), which has a density of 2.20 g/cm³. How many…

A:

Q: Which mass is smaller: 5.0 mg or 5.0 mg?

A: While comparing, both the measurements should be of same units.

Q: An iron wire has a diameter of 0.500 mm. What length of this wire contains exactly 1.00 mol of iron?…

A:

Q: The radius of a barium atom is 217 pm. How many barium atoms would have to be laid side by side to…

A:

Q: (1) Give to example of 1D Nano materials.

A:

Q: 26,000 nanoliters = ? dekaliters %3D 26.9 = ? 62 = ? %3D

A: The properties of matter are mainly two types. These are extensive properties and intensive…

Q: If a sample contained 9.65 x 1023 atoms of iodine, how many grams would this be? Round to one…

A:

Q: Which is considered an elemental substance? A.CO (carbon monoxide) B.H2O (water) C.I2 (iodine) D.A…

A: Given,CO (carbon monoxide)H2O (water)I2 (iodine)A and C are elemental substances.All of the above…

Q: Q26 (B) 500 grams of Zn(XO3)2 contain  7.22 x 1023  molecules. Find name and symbol of X.m

A:

Q: 8.W 8 What

A: It is C. The reaction rate is halved

Q: (a) Three spheres of equal size are composed of aluminum1density = 2.70 g>cm32, silver 1density =…

A: The density of a substance is related to the volume and mass of the substance as follows: Density =…

Q: Perform the following calculations and round your answer with the correct number of sig figs: a.…

A: In cases of multiplication and division, count the number of significant figures in each given…

Q: An atom of a particular element has a volume of 7.8 X 10-31 m3. What is this volume in cubic…

A: Find volume of atom in cubic nanometre

Q: Following the above question, for 1.50 L of mercury, what is the mass in kg? O 2.03 x 10° kg O 2.03…

A: Given details, The volume of mercury = 1.50 L = 1500 cm3 The density of mercury = 13.534 g/cm3…

Q: ~xxx se HS04 (A) ☆ (C) (D) Fasit + 4 #504 gl "ye

A:

Q: Determine the volume ton = 2205 Ibs, 1 lb 1 %3D %3D

A: Given mass of Cupper=2.2g Density =8.96g÷cm3 Volume =mass÷density Volume= 2.2÷8.96= 0.24cm3…

Q: %3D What is the mass of 24.5 mL gasoline? (density of gasoline = 0.749 g/mL) O 18.4 g O 24.5 g O…

A: Given - density of gasoline= 0.749 g/ml volume of gasoline=24.5 ml

Q: What is the mass of phosphorus in a 45 kg person? mass of P = %3D TOOLS x10

A:

Q: The radius of a potassium atom is 231 pm. How many potassium atoms would have to be laid side by…

A:

Q: 2.66 + 4.38 ×10* -1.0835×10 K K JK T -1.2517×10¬ K -2.85 + 6.543×10² K?

A: Now, ∆S298 =2S298oHcl-S298oCl2-S298oH2 ∆S298 =2×186.9-223.1-130.7∆S298 =20Jkmol

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.