Doing conversions from height to meters and from weight to kilograms

A 6.0 ft person weighs 168 lbs. Express this person's height in meters and weight in kilograms. (1 lb = 453.6 g 1 m = 3.28 ft.)

Stoichiometry

CO(g)+2H2(g)->CH3OH(g) How many moles of each reactant are needed to produce 3.60 X 10^2g of CH3OH? What are the number of grams of each reactant needed to produce 4.00 mole of CH3OH? How many grams of hydrogen are necessary to react with 2.85 mole of CO?

Minutes it takes light to travel from the sun to earth

How many minutes does it take light fromthe sun to reach Earth? (The distance from the sun to Earth is 93 million miles; the speed of light = 3.00 x 10^8 m/s.)

needing to find the pH when only the moles of the substance is given

What is the pH of 0.097 M of triethylammonium chloride (CH3CH2)3 NHCL? I know that in order to solve this i need to find the Kb, which is equal to Kw/Ka, I know that Kw = 1E-14, but I do not know which Ka to use? Once i know the Kb, i will be able to solve this problem and find the pH, i just need help finding the appropriat ...continues

Word problem: conversion factors of ml per hour to years

A water tank leaks water at the rate of 3.9 mL/h. If the tank is not repaired, what volume of water in liters will it leak in a year? Show work and setup.

word problem: convert uL to mL

A nurse plans to five flu injections of 50 uL (microliters) each from a bottle containing 2.0 mL of vaccine. How many doses are in the bottle? Please show steps to get answer.

Conversion factors

Convert the following to the required units: 550 uL (microliters) per hour to milliliters per day Please show steps

Density Problem

Determination of density has many practical applications. Is a piece of jewelry pure gold or is it an alloy perhaps of gold and silver? Give that the densities of gold and silver at 25 degrees C are 19.3 and 10.5g/mL respectively and that the volume of the alloy is the sum of the volumes of the metals used, calculate the density ...continues

(REALLY EASY) Rank the pH of 4 chemical compounds

List the following in order of increasing pH of their 0.1 M aqueous solutions (lowest to highest pH) NaBr NH4Br NaClO2 NaBrO2

Volume reading when density is given

The density of diamond is 3.51g/mL and the density of lead is 11.3g/mL. If equal masses of diamond and lead were transferred to equal volumes of water in seperate graduated cylinders, which graduated cylinder would have the highest volume reading? Explain your answer.