The average blue whale has a length of 2500 centimeters. The distance from Jupiter to Saturn is 6.46 x 108 km. How many blue whales lined up tip to tail would it take to reach Saturn from Jupiter...

The average blue whale has a length of 2500 centimeters. The distance from Jupiter to Saturn is 6.46 x 108 km. How many blue whales lined up tip to tail would it take to reach Saturn from Jupiter...

A college student, Timmy, works as a dishwasher at a restaurant for a 12 hour shift on Saturday and Sunday every weekend making $12.00 an hour. If the cost of gas is $3.00 per gallon, how many gallons...

Mr. and Mrs. Applebee are planning a birthday party for their daughter, Apple. Apple would like to have an apple bobbing game at her party. Mr. and Mrs. Applebee buy a bucket that boasts it will hold...

I'm doing my online chemistry summer class and significant digits are included, of course. But I'm confused about them because everything I believe is being contradicted. Here's what I mean... For...

A. 0.610atm B. 0.305atm C. 1.07atm D. 10.7 atm

by colourimetery

I need help with this question

calculate the nimber of moles in 2400g. caco.2

i need to know how to write the empirical formula

Suppose synthesis of Al2O3 is done in the lab using 20.50 g of Al and excess of O2. Upon purification, 35.48 grams of Al2O3 is produced. What is the percent yield of Al2O3?

A Student used 4.55 grams of salicylic acid, along with acetic anhydride, to prepare aspirin. C7H6O3 + C4H6O3 -> C9H8O4 + C2H4O2 (salicylic) (acetic an) (aspirin) ...

Lithium metal decomposes in water and releases hydrogen gas. If 275 mL of hydrogen gas are produced at STP, what is the mass of lithium that reacted. Li + H2O -> LiOH +...

A 1.00 gram sample of potassium bicarbonate is decomposed by heating. If the resulting potassium carbonate weighs 0.725 grams and the calculated yield is 0.776 grams, what is the percent yield?

How much .2 M NaOH would you need to add to neutralize 30mL of .5 M HCl

4.50 x 10^24 of zinc

2. A 12.2 mL sample of liquid was found to have a mass of 10.4 g. a) Calculate the density of this liquid (in g/mL).

3. A metal weighing 7.101 g is placed in a graduated cylinder containing 33.0 mL of water. The water level rose to the 37.4 mL mark. a) Calculate the density of the metal (in g/mL). b)...

I'm not sure how to find the answer to this problem.

Don't know how to start it please help.

I am stuck on this question please help.