brittzabala92 brittzabala92

23-10-2017
Chemistry

contestada

Calculate the number of grams of silane gas, SiH4, formed when 34.9 g of Mg2Si reacts with excess H2O.

Respuesta :

akiyama316 akiyama316

04-11-2017

Mg2Si + 2H2O → 2Mg(OH)2 + SiH4

So, moles of Mg2Si = 34.9 / 76.7 = 0.455

So, mole of SiH4 form = 0.455 (according to the equation)

Mass of SiH4 = 0.455 x 32.12 = 14.6 g

Answer Link

Otras preguntas

Which type of schizophrenia does someone have if they do not respond to their surroundings?

What is 2+2 In decimal form

Should there be an agency in charge of the Internet? How would business, government, and education be impacted if the Internet were suddenly no longer available

how many 4/5 cup servings in 8 cups

which global issue is a primary threat to biodiversity in the tropical regions of central Africa south east Asia in the Amazon basin?

Probability of choosing a 2 or a heart from a deck of cards A)0.077 B)0.25 C)0.3077 D)0.3269

A candidate running for state governor has an ad on TV. The ad begins with a statement from the candidate about his or her commitment to improve the state, and

The darker the skin of a person, the more likely that some of their ancestors ___________.

Which setting would best fit the theme of humanities struggle to achieve objectivity and impartiality? A. Classroom B. A battlefield c. A quart room D. A deser

a. True b. False: when you are experiencing strong emotions, experts agree that you should always express and act on those emotions immediately.