I would really aprreciate if someone could help me, thank you so much.
The white limestone cliffs of Dover, England, contain a large percentage of calcium carbonate(CaCO3). A sample of limestone weighing 84.4g reacts with an excess of hydrochloric acid to form calcium chloride.
CaCO3+2HCl (arrow) CaCl2+H2O+CO2
The mass of calcium chloride formes is 81.8g. What is the percentage of calcium carbonate in the limestone?
Appreciate all the help.
Make sure the equation is balanced.
81.8 g CaCl2 = ?? mols CaCl2.
??mols CaCl2 = mols CaCO3 (from the equation).
mols CaCO3 = ?? grams CaCO3.
%CaCO3 = (g CaCO3/84.4) x 100 = ??
Post your work if you get stuck.
Answer this Question
Which was a direct cause of increased voter participation in the early nineteenth century? A. The expansion of voting rights among African Americans for white men** B. The elimination of property requirements for white men C. The popularity of the
In a bag there are red, green, black,and white marbles. If there are 6 red, 8 green, 4 black, and 12 white and one marble is to be selected at random, what is the probability it will be white? I don't know how to solve these.
there are 10 marbles in a bag: 1 blue, 4 yellow, 3 red, and 2 white. if you choose a marble at random, what is the probability that you will NOT choose white?
A 1.00 g sample of limestone is allowed to react with 100 cm^3 of 0.200 mol/dm^3 HCl. The excess acid required 24.8 cm^3 of 0.100 mol/dm^3 NaOH solution. Calculate the percentage of calcium carbonate in the limestone
A 0.41 g sample of limestone was dissolved in HCl and all the calcium in the limestone was converted to Ca2+(aq). The solution was treated with excess ammonium oxalate, (NH4)2C2O4(aq), and it was found that 3.0 g of calcium oxalate, CaC2O4(s) was
Calculate the number of moles of calcium chloride Cacl2 that can be obtained from 25g of limestone CaCo3 in the presence of excess hydrogen chloride
English pls help
Midwestern Cheeses A majority of the cheesemaking plants in the United States are located in the Midwest; Wisconsin alone boasts more than one hundred creameries. Some cheese experts claim the best cheese made in America comes from this region. Why are
The real numbers $a$ and $b$ satisfy $|a| < 1$ and $|b| < 1.$ (a) In a grid that extends infinitely, the first row contains the numbers $1,$ $a,$ $a^2,$ $\dots.$ The second row contains the numbers $b,$ $ab,$ $a^2 b,$ $\dots.$ In general, each number is
A bag contains 6 red marbles, 3 white marbles, and 7 blue marbles. You pick a marble without looking. Find the probability of drawing a white marble. Can someone please explain how I would work this out?
A golfer has 12 golf shirts in his closet. Suppose 9 of these shirts are white and the others blue. He gets dressed in the dark, so he just grabs a shirt and puts it on. He plays golf two days in a row and does not do laundry. What is the likelihood both