03-07-2017
Chemistry

contestada

0.509g sample pure platinumetal was reacted with HCl to firm O.889g of platinum and chlorine. what is the percent by mass of platinum

Respuesta :

peterdaly peterdaly

11-07-2017

Platinum plus chlorine equals 0.889 grams whereas the platinum alone is 0.509grams so 0.509/0.889grams = 57% of the mass of the platinum plus chlorine. The chlorine would be 0.889-0.509=0.38 grams. The chlorine would make up about 42.7% of the total mass in grams.

Answer Link

Otras preguntas

How have the powers of congress changed over time?

If Congress passed a law making it a crime to write letters criticizing the government, it would be a law against the expression of ideas rather than a law agai

You're most likely to pay your county or town taxes in the form of a/an _______ tax. A. income B. excise C. property D. sales

Which Enlightenment philosopher promoted the principles of separation of church and state along with freedom of the press?

Tsar Nicholas II and Tsarina Alexandra were the Romanov rulers of Russia when the Bolshevik revolution took place in 1917. During this revolution, Tsar Nicholas

Mark the statement if it accurately describes a result of the invention of the printing press a. Books became less expensive to purchase. b. Books became avail

explain why estimating before you divide 624 divided by 6 help you place the first digit in the quotient

Why did the Founding Fathers include the Bill of Rights with the Constitution?

The lawmaking process can be very time-consuming because the (3 points) Constitution places a time minimum for Congress to consider all new bills before voting

what is the definition of globalization