Sate a smple of mixture of nacl

Reference no: EM13185948

A smple of mixture of NaCl, Caco3 and SiO2 weighed 7.30 grams. During the water wash the sample lost 2.21 grams. After treatment with HCL, the sample weighed 2.05 grams.

a. What is the perecent of NaCL by mass in the sample?

b.What are the percentages of Caco3 and SiO2 by mass in the sample?

Question 2: A 11.553g sample of beach sand contained ,0275 g of black particles. If 45.0%(wt/wt%) of the black paricles were magnetite , what is the wt/wt% of magnetite in the beach sand?

Reference no: EM13185948

Questions Cloud

Will the firm earn positive economic profits : For a particular good that is monopolized, the monopolist faces the following demand and cost conditions: P= 12 - 2 qd MR= 12-4qd MC= 2 q a) What price will the firm charge its customers b) Will the firm earn positive economic profits

Explain a method of preparing a very pure alkane is to react : A method of preparing a very pure alkane is to react the corresponding alkyl magnesium halid (grignard reagent) with water and collect the alkane product.

Estimate the maximum error in the calculated surface area : The circumference of a sphere was measured to be 86000 cm with a possible error of 050000 cm. Use linear approximation to estimate the maximum error in the calculated surface area.

Write a program that will convert us dollar amounts : Write a program that will convert US dollar amounts to Canadian dollar (1 CND = 0.92 USD). Format your currency amounts in two decimal places and trailing zeros.

Sate a smple of mixture of nacl : A smple of mixture of NaCl, Caco3 and SiO2 weighed 7.30 grams. During the water wash the sample lost 2.21 grams. After treatment with HCL, the sample weighed 2.05 grams.

Explain aufbau filling principles : Based on Aufbau filling principles, chromium would be expected to have the following configuration [Ar]4s^23d^4. but the configuration is actually [Ar] 4s^13d^5. Wrtie a brief statement explaining why this alternate configuration is the known con..

What is the present discounted value of this payment : Jethro has been promised a payment of $1000, which is to be paid exactly 8 years from now. He is completely certain that the payment will in fact be made. Jethro believes that the appropriate discount rate is 5% per year, and that this will contin..

What is the maximum number of trees : If each ton of rock costs $70, each plant is $20, and each tree is $74, what is the maximum number of trees you can buy with a budget of $2,500? Write an inequality that illustrates the problem and solve.

What is the firms current output level : At its current short-run level of production, a firm's average variable costs equal $20, and its average fixed costs equal $70. Its total costs at its current production level equal $200,000. a. What is the firm's current output level

User Account

All Pages