Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Chemistry Expert

problem 1: Convert the given quantities to SI units or US currency. Express each result by using both scientific notation and a SI prefix.

a) 5 million years.

b) 0.236 ounce of platinum.

c) Radiation with a wavelength of 0.0000236 inch.

d) The 250,000,000,000 SF assets of a bank in Zurich if the exchange rate is 1.45 SF/$.

e) Volume of a microbe with a diameter of 0.0000066 ft.

problem 2: 25.0 ft of copper wire with a diameter of 1.5 mm is measured out. Compute the volume of the wire in cm3 and its mass in g. Density of copper is 8.92 g/cm3.

problem 3: Joe, a technician in a refinery, decides to find out the density of a product with a scale which has a maximum capacity of ten ton however can only be read to the nearest ten pound (±10 lb). He loads an empty 10.0 gallon carboy in a truck and finds out that the truck and carboy weigh 5200 pound. He fills the carboy whereupon the scale reads 5290 pound. Compute the density of the product in g/cm3 from his data. His supervisor needs a result with a minimum precision of two significant digits. Will the supervisor be satisfied? How could Joe enhance his precision?

problem 4: Jill, an avid hiker, accidentally kicks a 0.025 pound pebble off a high cliff. It falls for 5.000 s. Alas, Jack is at the bottom and the pebble is moving at the speed of 1600 ft/s when it hits his crown. Compute the kinetic energy (1/2 mv2) of the pebble in Joule, the SI unit of energy, at the instant of impact.

Chemistry, Academics

  • Category:- Chemistry
  • Reference No.:- M93212

Have any Question? 


Related Questions in Chemistry

A 400g sample of an ideal gas occupies 124l at 23 degrees

A 4.00g sample of an ideal gas occupies 1.24L at 23 degrees Celcius and 1.12bar. What will be its volume at 14 degrees Celcius and 1.50bar?

Write the elemental symbol with charge for when aluminum

Write the elemental symbol, with charge, for when Aluminum forms an ion and tell whether it is an anion or a cation. Think about whether it gains or loses electrons.

Titanium reacts with hydrogen peroxide in 100 m sulfuric

Titanium reacts with hydrogen peroxide in 1.00 M sulfuric acid to form a colored complex. If a 2.00x10^-5 M solution absorbs 31.5% of the radiation at 415 nm, what would be: the absorbable, the transmittance, and the per ...

The freezing point of a 1 molar nonelectrolyte such as

The freezing point of a 1 molar nonelectrolyte such as ethylene glycol is. What is the freezing point in degrees C of a 1.79 molar potassium chloride solution? Calculate the osmolarity of a solution made from a 1.876 % ( ...

Why does the temperature of a solution increase if the

Why does the temperature of a solution increase if the reaction is exothermic? For example, in the precipitation of silver iodide, delta H is -110.7 kj. Why is this reaction exothermic and why does it cause the solution ...

A 06745 gram sample of khp reacts with 4175 ml of koh

A 0.6745 gram sample of KHP reacts with 41.75 mL of KOH solution for complete neutralization. What is the molarity of the KOH solution? (Molecular weight of KHP = 204 g/mol. KHP has one acidic hydrogen.)

Calculate the amount of work done for the conversion of 100

Calculate the amount of work done for the conversion of 1.00 mole of Ni to Ni(CO)4in the reaction below, at 75oC. Assume that the gases are ideal. The value of R is 8.31 J/molK.

1 what is the purpose of making derivatives of unknowns2

1.) What is the purpose of making derivatives of unknowns? 2.) Give three reasons why acetone might interfere with your results. 3.) An unknown sample does not react with 2,4-dinitrophenylhydrazine reagent, but a color c ...

A 010 m fes04 aq solution is electrolyzed between a

A 0.10 M FeS04 (aq) solution is electrolyzed between a magnesium cathode and a platinum anode with a current density of 1.50 mA cm-2.The hydrogen over potential is 0.60 V. What will be the concentration of Fe2+ions when ...

1if you wish a buffer to have a ph of 1000 what is the

1. If you wish a buffer to have a pH of 10.00, what is the desired [H 3 O + ]? 2. In the buffer from 6, you want to select a weak acid (one of the conjugate pair) with a Ka close to that value of [H 3 O + ]. Explain why, ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro