a. How many moles of alum are there in 73.6 g of the compound?
Consider this element, Na.
a. How many moles are there in 79.20 g of the element?
moles of Na.
b. How many atoms are there in this element. 45.36 g of Na? Enter your answer as #.##e## (for example: 6.02e23)
c. Sodium is quite reactive and forms many compounds such as NaCl. How many moles of the compound are there in 92.25 g of the compound?
On a spending binge in Malaysia, you buy an ox with a weight of 24.6 piculs in the local unit of weights: 1 picul = 100 gin, 1 gin = 16 tahils, 1 tahil = 10 chee, and 1 chee = 10 hoon. The weight of 1 hoon corresponds to a mass of 0.3779 g. When you arrange to ship the ox home to your astonished family, how much mass in kilograms must you declare on the shipping manifest?
calculate the average speed in miles/hour of a cheetah that runs 136 meters in 5.00 seconds using dimensional analysis.
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