For the following chemical reaction, what mass of calcium chloride (in grams) will be produced from 5.21 mol of hydrochloric acid?

Question

anonymous · Answer

first you need to write out the formula for the chemical reaction

anonymous · Answer

$$Ca+ HCl = CaCl _{2} +H$$

anonymous · Answer

next you need to balance the equation

anonymous · Answer

$$Ca + 2HCl = CaCl _{2} + H _{2}$$

anonymous · Answer

from the balanced equation we now know that 2mol of HCl make 1mol of CaCl2 using that we can find how many moles of CaCl2 when we use 5.21mol of HCl

anonymous · Answer

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anonymous · Answer

using 2.605mol of CaCl2 we can know find the mass in grams of CaCl2 using the formula $$moles=\frac{ mass }{ mw }$$
and make mass the subject of the formula

anonymous · Answer

$$mass = mw \times moles$$
find the molecular weight of CaCl2 and plug it into the equation to find your unknown mass

anonymous · Answer

I hope this helps