What are the molecular mass and molar mass
If 414 mL of a gas measured at 26°C and 641 torr has a mass of 0.384 g, what are the molecular mass and molar mass?
Expected delivery within 24 Hours
An oxygen tank kept at 20.0?C contains 28.0 moles of oxygen and the gauge reads 31.0 atm. After two weeks, the gauge reads 20.7 atm. How much oxygen was used during the two-week period?
Concentrated stock HCl has a molecular weight of 36.46 and contains 32g of salt for every 100g of acid (termed as 32% w/w). To prepare molar solutions %w/w must be converted into %w/v by considering the density of stock HCl which is 1.16.
The Record-a-Song company has contracted with a rising star to record eight songs. The sizes in MB of the different songs are 8, 3, 5, 5, 9, 6, 7, and 12, respectively.
The flask was then shaken until the solution was uniform. A 30.0-mL sample of this glucose solution was diluted to 0.500 L. How many grams of glucose are in 100. mL of the final solution?
An eight lane urban freeway (four lanes in each direction) is on rolling terrain and has 11-ft lanes with a 4-ft right-side shoulder. The interchange density is 1.25 per mile.
A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pressure of 268 {rm torr}. Pure pentane and hexane have vapor pressures of 425 {rm torr} and 151 {rm torr}, respectively, at room temperature. What i
CHCOOH ↔ CH3COO- +H+ Write the equilibrium expression for the reaction. What is the concentration of H+ if the pH is 4.5? How would the concentration of each species change if H+ was added to the reaction from an outside source?
A 0.560-g sample of acetic acid is added to enough water to make 50.00ml of solution. Calculate [H+], [CH3COO-], [CH3COOH], and the pH at equilibrium. Ka for acetic acid is 1.8x10-5.
1958573
Questions Asked
3,689
Active Tutors
1431226
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Hi, in a course for my MBA one of my assignments was to make an interview to an individual that shops online regularly.
When consumers are unable to articulate their experiences, what becomes particularly useful in understanding consumers preferences
When a marketer's brand is evaluated by a target market that engages in limited decision making, the marketer's objective is to Multiple choice question.
Mark's Work Wearhouse changed their name to Mark's and now uses more women in their advertising. Use of a single marketing strategy
Question: What is the difference between brand-loyal customers and brand-preference customers?
While marketing focuses primarily on generating sales and profits, public relations serves the public interest in developing newsworthy content
This term describes the sampling units (counties or geographically split counties) as defined by Nielsen Media Research Inc.