13 A student made two solutions: Solution A: 6g of sodium chloride dissolved in 300 cm3 of water.
Solution B: 10 g of sodium chloride dissolved in 500 cm3 of water.
Which of the following statements is correct?
th
The two solutions have the same concentration
of 0.02 g/dm3.
o
Solution A has a greater concentration than
solution B.
The two solutions have the same concentration
of 20 g/dm3
3.
Solution B has a greater concentration than
solution A

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o  

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles  

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles  

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1  

0.44 / 0.09 = 4.8  

mgco3-5h2o"

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them